• Re: Where to find a router bit

    From Just Wondering@21:1/5 to Greg Guarino on Mon Jul 4 19:04:39 2022
    On 7/4/2022 6:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find such
    a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?


    It sounds like you're looking for something like this:
    BOSCH 1/2 In. x 1/4 In. Top Bearing Dado Clean Out Bit https://www.amazon.com/Bosch-85674M-Carbide-2-Flute-Bearing/dp/B000WAAQR0/ref=sr_1_10?crid=14OPCW3J3JJNL&keywords=1%2F2%22+dado+router+bit&qid=1656982740&s=hi&sprefix=1%2F2+dado+router+bit%2Ctools%2C105&sr=1-10


    Changing the subject, I recommend you spring for a router that
    uses 1/2" shanks like these: https://www.amazon.com/gp/product/B00004T7CK/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1
    (This one is a 1/2" dia. 1 1/4" deep double-fluted
    straight bit.)

    If you cut dados frequently, you could get a stacked dado
    table saw blade set. https://www.amazon.com/8-INCH-STACKED-DADO-SET/dp/B072MJ2V9J/ref=sr_1_3?crid=1OY5R61TDJA3U&keywords=stacked%2Bdado%2Btable%2Bsaw%2Bblade%2Bset&qid=1656981937&s=hi&sprefix=stacked%2Bdado%2Btable%2Bsaw%2Bblade%2Bset%2Ctools%2C185&sr=1-3&th=1
    For the price of four router bits you get the ability to cut dados from
    1/4" to 13/16" in 1/32" increments.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Greg Guarino@21:1/5 to All on Mon Jul 4 17:37:36 2022
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find such a
    thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Greg Guarino@21:1/5 to Just Wondering on Mon Jul 4 19:05:04 2022
    On Monday, July 4, 2022 at 9:04:45 PM UTC-4, Just Wondering wrote:
    On 7/4/2022 6:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?

    It sounds like you're looking for something like this:
    BOSCH 1/2 In. x 1/4 In. Top Bearing Dado Clean Out Bit https://www.amazon.com/Bosch-85674M-Carbide-2-Flute-Bearing/dp/B000WAAQR0/ref=sr_1_10?crid=14OPCW3J3JJNL&keywords=1%2F2%22+dado+router+bit&qid=1656982740&s=hi&sprefix=1%2F2+dado+router+bit%2Ctools%2C105&sr=1-10


    Changing the subject, I recommend you spring for a router that
    uses 1/2" shanks like these: https://www.amazon.com/gp/product/B00004T7CK/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1
    (This one is a 1/2" dia. 1 1/4" deep double-fluted
    straight bit.)

    If you cut dados frequently, you could get a stacked dado
    table saw blade set. https://www.amazon.com/8-INCH-STACKED-DADO-SET/dp/B072MJ2V9J/ref=sr_1_3?crid=1OY5R61TDJA3U&keywords=stacked%2Bdado%2Btable%2Bsaw%2Bblade%2Bset&qid=1656981937&s=hi&sprefix=stacked%2Bdado%2Btable%2Bsaw%2Bblade%2Bset%2Ctools%2C185&sr=1-3&th=1
    For the price of four router bits you get the ability to cut dados from
    1/4" to 13/16" in 1/32" increments.

    That's pretty much exactly the bit I have. I was hoping for one that cuts a little deeper. I have a router that has a 1/2" collet also, but I wondered if the shaft would rub on the "runners" of the jig, being the same diameter as the cutter.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to gdguarino@gmail.com on Mon Jul 4 22:34:21 2022
    On Mon, 4 Jul 2022 17:37:36 -0700 (PDT), Greg Guarino
    <gdguarino@gmail.com> wrote:

    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find such a
    thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?

    Instead of a trim bit, why not a bushing and up-spiral bit.

    - Make a wider dado through the top half of your jig (or add another
    layer. It really doesn't matter how wide the dado is just wider than
    the bushing and centered.

    - Slide the left and right pieces (so the bottom of the jig touches).

    - Use the router bit with the bushing to cut all the way through the
    jig.

    - You can now use the bottom half you your jig to reference the
    thickness of your board. The top of the slot is the difference
    between the bushing and bit.

    Just run the bushing along the top edge of the jig and your dado is
    the width of your reference. You can expose as much of the bit as you
    want past the bottom edge of your jig.

    It's kinda like a shooting board crossed with a Kerf Master for a
    router. Use the same bushing and bit and there is no further
    calibration needed. The minimum dado width will be your bit diameter, obviously.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Greg Guarino@21:1/5 to k...@notreal.com on Tue Jul 5 02:50:12 2022
    On Monday, July 4, 2022 at 10:34:27 PM UTC-4, k...@notreal.com wrote:
    On Mon, 4 Jul 2022 17:37:36 -0700 (PDT), Greg Guarino
    <gdgu...@gmail.com> wrote:

    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find such
    a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?
    Instead of a trim bit, why not a bushing and up-spiral bit.

    - Make a wider dado through the top half of your jig (or add another
    layer. It really doesn't matter how wide the dado is just wider than
    the bushing and centered.

    - Slide the left and right pieces (so the bottom of the jig touches).

    - Use the router bit with the bushing to cut all the way through the
    jig.

    - You can now use the bottom half you your jig to reference the
    thickness of your board. The top of the slot is the difference
    between the bushing and bit.

    Just run the bushing along the top edge of the jig and your dado is
    the width of your reference. You can expose as much of the bit as you
    want past the bottom edge of your jig.

    It's kinda like a shooting board crossed with a Kerf Master for a
    router. Use the same bushing and bit and there is no further
    calibration needed. The minimum dado width will be your bit diameter, obviously.

    I had to read that a couple of times before I could imagine it. My solid wood "runners" are only about 1/4" wide. Unless I have a bushing that is really close to the size of the bit I'm going go all the way through the "runner".

    Another issue I can imagine is the centering of the bushing. As it stands, the roller on the bit is obviously perfectly centered on the bit. But with a bushing I have to do some fancy alignment, or (I suppose) make sure to keep the router in the same
    orientation for every cut. I'm going to mull this over a little more.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Leon@21:1/5 to Greg Guarino on Tue Jul 5 08:42:44 2022
    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find such
    a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?



    You can do a deeper dado with that bit. Just make two or more passes.
    Complete your first cuts then lower the bit. It will use the first
    cuts as the guide. That is how I do mine.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Leon@21:1/5 to krw@notreal.com on Tue Jul 5 08:46:53 2022
    On 7/4/2022 9:34 PM, krw@notreal.com wrote:
    On Mon, 4 Jul 2022 17:37:36 -0700 (PDT), Greg Guarino
    <gdguarino@gmail.com> wrote:

    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find such
    a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?

    Instead of a trim bit, why not a bushing and up-spiral bit.

    - Make a wider dado through the top half of your jig (or add another
    layer. It really doesn't matter how wide the dado is just wider than
    the bushing and centered.

    - Slide the left and right pieces (so the bottom of the jig touches).

    - Use the router bit with the bushing to cut all the way through the
    jig.

    - You can now use the bottom half you your jig to reference the
    thickness of your board. The top of the slot is the difference
    between the bushing and bit.

    Just run the bushing along the top edge of the jig and your dado is
    the width of your reference. You can expose as much of the bit as you
    want past the bottom edge of your jig.

    It's kinda like a shooting board crossed with a Kerf Master for a
    router. Use the same bushing and bit and there is no further
    calibration needed. The minimum dado width will be your bit diameter, obviously.


    This works but...... you have to use a guide bushing and it has to be perfectly centered with the bit and or you have to remember to not clock
    the router when making the cut.

    A top bearing bit precisely makes the cut with no adjustments needed for
    a bushing that might be off center.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to gdguarino@gmail.com on Tue Jul 5 11:14:20 2022
    On Tue, 5 Jul 2022 02:50:12 -0700 (PDT), Greg Guarino
    <gdguarino@gmail.com> wrote:

    On Monday, July 4, 2022 at 10:34:27 PM UTC-4, k...@notreal.com wrote:
    On Mon, 4 Jul 2022 17:37:36 -0700 (PDT), Greg Guarino
    <gdgu...@gmail.com> wrote:

    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?
    Instead of a trim bit, why not a bushing and up-spiral bit.

    - Make a wider dado through the top half of your jig (or add another
    layer. It really doesn't matter how wide the dado is just wider than
    the bushing and centered.

    - Slide the left and right pieces (so the bottom of the jig touches).

    - Use the router bit with the bushing to cut all the way through the
    jig.

    - You can now use the bottom half you your jig to reference the
    thickness of your board. The top of the slot is the difference
    between the bushing and bit.

    Just run the bushing along the top edge of the jig and your dado is
    the width of your reference. You can expose as much of the bit as you
    want past the bottom edge of your jig.

    It's kinda like a shooting board crossed with a Kerf Master for a
    router. Use the same bushing and bit and there is no further
    calibration needed. The minimum dado width will be your bit diameter,
    obviously.

    I had to read that a couple of times before I could imagine it. My solid wood "runners" are only about 1/4" wide. Unless I have a bushing that is really close to the size of the bit I'm going go all the way through the "runner".

    Exactly. You do that once and your jig is calibrated. Yes, if you put
    the runner on top, you'd cut the jig you have now. If you use the
    runner you have now on top, you could put the sacrificial strip on the
    bottom. It doesn't take much thickness. 1/4" plywood on the bottom
    of your jig is enough. Replace the plywood to recalibrate.

    Another issue I can imagine is the centering of the bushing. As it stands, the roller on the bit is obviously perfectly centered on the bit. But with a bushing I have to do some fancy alignment, or (I suppose) make sure to keep the router in the same
    orientation for every cut. I'm going to mull this over a little more.

    Use a centering mandrel. It's something that's needed anytime you use bushings.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to Leon on Tue Jul 5 11:15:10 2022
    On Tue, 5 Jul 2022 08:46:53 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/4/2022 9:34 PM, krw@notreal.com wrote:
    On Mon, 4 Jul 2022 17:37:36 -0700 (PDT), Greg Guarino
    <gdguarino@gmail.com> wrote:

    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?

    Instead of a trim bit, why not a bushing and up-spiral bit.

    - Make a wider dado through the top half of your jig (or add another
    layer. It really doesn't matter how wide the dado is just wider than
    the bushing and centered.

    - Slide the left and right pieces (so the bottom of the jig touches).

    - Use the router bit with the bushing to cut all the way through the
    jig.

    - You can now use the bottom half you your jig to reference the
    thickness of your board. The top of the slot is the difference
    between the bushing and bit.

    Just run the bushing along the top edge of the jig and your dado is
    the width of your reference. You can expose as much of the bit as you
    want past the bottom edge of your jig.

    It's kinda like a shooting board crossed with a Kerf Master for a
    router. Use the same bushing and bit and there is no further
    calibration needed. The minimum dado width will be your bit diameter,
    obviously.


    This works but...... you have to use a guide bushing and it has to be >perfectly centered with the bit and or you have to remember to not clock
    the router when making the cut.

    Again, use a centering mandrel.

    A top bearing bit precisely makes the cut with no adjustments needed for
    a bushing that might be off center.

    Not a problem.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to krw@notreal.com on Tue Jul 5 11:19:15 2022
    On Tue, 05 Jul 2022 11:15:10 -0400, krw@notreal.com wrote:

    On Tue, 5 Jul 2022 08:46:53 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/4/2022 9:34 PM, krw@notreal.com wrote:
    On Mon, 4 Jul 2022 17:37:36 -0700 (PDT), Greg Guarino
    <gdguarino@gmail.com> wrote:

    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?

    Instead of a trim bit, why not a bushing and up-spiral bit.

    - Make a wider dado through the top half of your jig (or add another
    layer. It really doesn't matter how wide the dado is just wider than
    the bushing and centered.

    - Slide the left and right pieces (so the bottom of the jig touches).

    - Use the router bit with the bushing to cut all the way through the
    jig.

    - You can now use the bottom half you your jig to reference the
    thickness of your board. The top of the slot is the difference
    between the bushing and bit.

    Just run the bushing along the top edge of the jig and your dado is
    the width of your reference. You can expose as much of the bit as you
    want past the bottom edge of your jig.

    It's kinda like a shooting board crossed with a Kerf Master for a
    router. Use the same bushing and bit and there is no further
    calibration needed. The minimum dado width will be your bit diameter,
    obviously.


    This works but...... you have to use a guide bushing and it has to be >>perfectly centered with the bit and or you have to remember to not clock >>the router when making the cut.

    Again, use a centering mandrel. If the bushing isn't centered the whole thing doesn't work. You can't guarantee that the bushing was put on the same way each time.


    A top bearing bit precisely makes the cut with no adjustments needed for
    a bushing that might be off center.

    Not a problem.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Leon@21:1/5 to Greg Guarino on Tue Jul 5 12:27:06 2022
    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find such
    a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?




    https://www.amazon.com/dp/B01LX50EVT/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LX50EVT&pd_rd_w=hRCkh&content-id=amzn1.sym.3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_p=3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_r=B4P7J62MN5SA6FWGRXHA&pd_rd_wg=diMqz&pd_rd_r=
    d81a90b2-2515-4e9f-94c9-6e484083885c&s=hi&spLa= ZW5jcnlwdGVkUXVhbGlmaWVyPUExQ1k3MDQ0MEhaTUhBJmVuY3J5cHRlZElkPUEwNDg4Njk2M0xMS0FJTkwwU05NOCZlbmNyeXB0ZWRBZElkPUEwNjM4MDg1SjA3V0xXT01CQ0ozJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to Leon on Tue Jul 5 15:11:44 2022
    On Tue, 5 Jul 2022 12:27:06 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find such
    a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?




    https://www.amazon.com/dp/B01LX50EVT/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LX50EVT&pd_rd_w=hRCkh&content-id=amzn1.sym.3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_p=3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_r=B4P7J62MN5SA6FWGRXHA&pd_rd_wg=diMqz&pd_rd_r=
    d81a90b2-2515-4e9f-94c9-6e484083885c&s=hi&spLa= ZW5jcnlwdGVkUXVhbGlmaWVyPUExQ1k3MDQ0MEhaTUhBJmVuY3J5cHRlZElkPUEwNDg4Njk2M0xMS0FJTkwwU05NOCZlbmNyeXB0ZWRBZElkPUEwNjM4MDg1SjA3V0xXT01CQ0ozJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

    He was afraid of screwing up his fixture if a longer bit slipped. I
    think he wanted a bit exactly the depth of his dado.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Greg Guarino@21:1/5 to k...@notreal.com on Tue Jul 5 20:55:02 2022
    On Tuesday, July 5, 2022 at 3:11:50 PM UTC-4, k...@notreal.com wrote:
    On Tue, 5 Jul 2022 12:27:06 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?




    https://www.amazon.com/dp/B01LX50EVT/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LX50EVT&pd_rd_w=hRCkh&content-id=amzn1.sym.3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_p=3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_r=B4P7J62MN5SA6FWGRXHA&pd_rd_wg=diMqz&pd_rd_r=
    d81a90b2-2515-4e9f-94c9-6e484083885c&s=hi&spLa= ZW5jcnlwdGVkUXVhbGlmaWVyPUExQ1k3MDQ0MEhaTUhBJmVuY3J5cHRlZElkPUEwNDg4Njk2M0xMS0FJTkwwU05NOCZlbmNyeXB0ZWRBZElkPUEwNjM4MDg1SjA3V0xXT01CQ0ozJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
    He was afraid of screwing up his fixture if a longer bit slipped. I
    think he wanted a bit exactly the depth of his dado.

    In the past, partly because it was the bit I had, I made 1/4" deep dados. Which worked fine, but I'd like to at least have the choice to make them 3/8" deep. I'd prefer to do it in one pass. Although I I've never actually done that, so that might be too
    big a bite all at once.

    And yes, I do wonder if there's a greater chance to somehow nick the "runners" when so much of a 3/4" deep cutter is "extra" and microscopically close to the runner. All it would take is a little tilt. Which, granted, shouldn't happen, but it's easy to
    get distracted.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Leon@21:1/5 to Greg Guarino on Wed Jul 6 12:06:17 2022
    On 7/5/2022 10:55 PM, Greg Guarino wrote:
    On Tuesday, July 5, 2022 at 3:11:50 PM UTC-4, k...@notreal.com wrote:
    On Tue, 5 Jul 2022 12:27:06 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?




    https://www.amazon.com/dp/B01LX50EVT/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LX50EVT&pd_rd_w=hRCkh&content-id=amzn1.sym.3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_p=3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_r=B4P7J62MN5SA6FWGRXHA&pd_rd_wg=diMqz&pd_rd_
    r=d81a90b2-2515-4e9f-94c9-6e484083885c&s=hi&spLa= ZW5jcnlwdGVkUXVhbGlmaWVyPUExQ1k3MDQ0MEhaTUhBJmVuY3J5cHRlZElkPUEwNDg4Njk2M0xMS0FJTkwwU05NOCZlbmNyeXB0ZWRBZElkPUEwNjM4MDg1SjA3V0xXT01CQ0ozJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
    He was afraid of screwing up his fixture if a longer bit slipped. I
    think he wanted a bit exactly the depth of his dado.

    In the past, partly because it was the bit I had, I made 1/4" deep dados. Which worked fine, but I'd like to at least have the choice to make them 3/8" deep. I'd prefer to do it in one pass. Although I I've never actually done that, so that might be
    too big a bite all at once.

    And yes, I do wonder if there's a greater chance to somehow nick the "runners" when so much of a 3/4" deep cutter is "extra" and microscopically close to the runner. All it would take is a little tilt. Which, granted, shouldn't happen, but it's easy to
    get distracted.


    Remember, once you have the established dado/groove you can make it
    deeper by using it's sides as the bearing guide.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Greg Guarino@21:1/5 to Leon on Wed Jul 6 10:43:26 2022
    On Wednesday, July 6, 2022 at 1:06:26 PM UTC-4, Leon wrote:
    On 7/5/2022 10:55 PM, Greg Guarino wrote:
    On Tuesday, July 5, 2022 at 3:11:50 PM UTC-4, k...@notreal.com wrote:
    On Tue, 5 Jul 2022 12:27:06 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?




    https://www.amazon.com/dp/B01LX50EVT/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LX50EVT&pd_rd_w=hRCkh&content-id=amzn1.sym.3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_p=3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_r=B4P7J62MN5SA6FWGRXHA&pd_rd_wg=diMqz&pd_
    rd_r=d81a90b2-2515-4e9f-94c9-6e484083885c&s=hi&spLa= ZW5jcnlwdGVkUXVhbGlmaWVyPUExQ1k3MDQ0MEhaTUhBJmVuY3J5cHRlZElkPUEwNDg4Njk2M0xMS0FJTkwwU05NOCZlbmNyeXB0ZWRBZElkPUEwNjM4MDg1SjA3V0xXT01CQ0ozJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
    He was afraid of screwing up his fixture if a longer bit slipped. I
    think he wanted a bit exactly the depth of his dado.

    In the past, partly because it was the bit I had, I made 1/4" deep dados. Which worked fine, but I'd like to at least have the choice to make them 3/8" deep. I'd prefer to do it in one pass. Although I I've never actually done that, so that might be
    too big a bite all at once.

    And yes, I do wonder if there's a greater chance to somehow nick the "runners" when so much of a 3/4" deep cutter is "extra" and microscopically close to the runner. All it would take is a little tilt. Which, granted, shouldn't happen, but it's easy
    to get distracted.
    Remember, once you have the established dado/groove you can make it
    deeper by using it's sides as the bearing guide.

    Thanks.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to gdguarino@gmail.com on Wed Jul 6 13:58:06 2022
    On Tue, 5 Jul 2022 20:55:02 -0700 (PDT), Greg Guarino
    <gdguarino@gmail.com> wrote:

    On Tuesday, July 5, 2022 at 3:11:50 PM UTC-4, k...@notreal.com wrote:
    On Tue, 5 Jul 2022 12:27:06 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?




    https://www.amazon.com/dp/B01LX50EVT/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LX50EVT&pd_rd_w=hRCkh&content-id=amzn1.sym.3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_p=3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_r=B4P7J62MN5SA6FWGRXHA&pd_rd_wg=diMqz&pd_rd_
    r=d81a90b2-2515-4e9f-94c9-6e484083885c&s=hi&spLa= ZW5jcnlwdGVkUXVhbGlmaWVyPUExQ1k3MDQ0MEhaTUhBJmVuY3J5cHRlZElkPUEwNDg4Njk2M0xMS0FJTkwwU05NOCZlbmNyeXB0ZWRBZElkPUEwNjM4MDg1SjA3V0xXT01CQ0ozJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
    He was afraid of screwing up his fixture if a longer bit slipped. I
    think he wanted a bit exactly the depth of his dado.

    In the past, partly because it was the bit I had, I made 1/4" deep dados. Which worked fine, but I'd like to at least have the choice to make them 3/8" deep. I'd prefer to do it in one pass. Although I I've never actually done that, so that might be too
    big a bite all at once.

    And yes, I do wonder if there's a greater chance to somehow nick the "runners" when so much of a 3/4" deep cutter is "extra" and microscopically close to the runner. All it would take is a little tilt. Which, granted, shouldn't happen, but it's easy to
    get distracted.

    It sure is. I nicked one of my Festool rails yesterday. The piece
    shifted (fell off a spacer) and the saw came out of the track. I did
    it when I first got the saw. On the other rail! I was going to use
    it for this cut but the tear out strip was peeled back and I was too
    lazy to put another on. Damn!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to Leon on Wed Jul 6 14:00:33 2022
    On Wed, 6 Jul 2022 12:06:17 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/5/2022 10:55 PM, Greg Guarino wrote:
    On Tuesday, July 5, 2022 at 3:11:50 PM UTC-4, k...@notreal.com wrote:
    On Tue, 5 Jul 2022 12:27:06 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?




    https://www.amazon.com/dp/B01LX50EVT/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LX50EVT&pd_rd_w=hRCkh&content-id=amzn1.sym.3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_p=3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_r=B4P7J62MN5SA6FWGRXHA&pd_rd_wg=diMqz&pd_rd_
    r=d81a90b2-2515-4e9f-94c9-6e484083885c&s=hi&spLa= ZW5jcnlwdGVkUXVhbGlmaWVyPUExQ1k3MDQ0MEhaTUhBJmVuY3J5cHRlZElkPUEwNDg4Njk2M0xMS0FJTkwwU05NOCZlbmNyeXB0ZWRBZElkPUEwNjM4MDg1SjA3V0xXT01CQ0ozJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
    He was afraid of screwing up his fixture if a longer bit slipped. I
    think he wanted a bit exactly the depth of his dado.

    In the past, partly because it was the bit I had, I made 1/4" deep dados. Which worked fine, but I'd like to at least have the choice to make them 3/8" deep. I'd prefer to do it in one pass. Although I I've never actually done that, so that might be
    too big a bite all at once.

    And yes, I do wonder if there's a greater chance to somehow nick the "runners" when so much of a 3/4" deep cutter is "extra" and microscopically close to the runner. All it would take is a little tilt. Which, granted, shouldn't happen, but it's easy
    to get distracted.


    Remember, once you have the established dado/groove you can make it
    deeper by using it's sides as the bearing guide.

    How do you do that. He's going from 1/4" to 3/8". The cutter length
    is certainly more than 1/4". The bearing will still be out of the
    piece. Obviously a bottom bearing isn't going to work.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Greg Guarino@21:1/5 to k...@notreal.com on Wed Jul 6 14:29:30 2022
    On Wednesday, July 6, 2022 at 2:00:39 PM UTC-4, k...@notreal.com wrote:
    On Wed, 6 Jul 2022 12:06:17 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/5/2022 10:55 PM, Greg Guarino wrote:
    On Tuesday, July 5, 2022 at 3:11:50 PM UTC-4, k...@notreal.com wrote:
    On Tue, 5 Jul 2022 12:27:06 -0500, Leon <lcb11211@swbelldotnet> wrote: >>>
    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?




    https://www.amazon.com/dp/B01LX50EVT/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LX50EVT&pd_rd_w=hRCkh&content-id=amzn1.sym.3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_p=3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_r=B4P7J62MN5SA6FWGRXHA&pd_rd_wg=diMqz&pd_
    rd_r=d81a90b2-2515-4e9f-94c9-6e484083885c&s=hi&spLa= ZW5jcnlwdGVkUXVhbGlmaWVyPUExQ1k3MDQ0MEhaTUhBJmVuY3J5cHRlZElkPUEwNDg4Njk2M0xMS0FJTkwwU05NOCZlbmNyeXB0ZWRBZElkPUEwNjM4MDg1SjA3V0xXT01CQ0ozJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
    He was afraid of screwing up his fixture if a longer bit slipped. I
    think he wanted a bit exactly the depth of his dado.

    In the past, partly because it was the bit I had, I made 1/4" deep dados. Which worked fine, but I'd like to at least have the choice to make them 3/8" deep. I'd prefer to do it in one pass. Although I I've never actually done that, so that might be
    too big a bite all at once.

    And yes, I do wonder if there's a greater chance to somehow nick the "runners" when so much of a 3/4" deep cutter is "extra" and microscopically close to the runner. All it would take is a little tilt. Which, granted, shouldn't happen, but it's easy
    to get distracted.


    Remember, once you have the established dado/groove you can make it
    deeper by using it's sides as the bearing guide.
    How do you do that. He's going from 1/4" to 3/8". The cutter length
    is certainly more than 1/4". The bearing will still be out of the
    piece. Obviously a bottom bearing isn't going to work.

    I assume he means to do it while the work is still in the jig. The easiest way being with a plunge router so you can repeatedly go back and forth between "first pass" depth and second pass.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to gdguarino@gmail.com on Wed Jul 6 19:29:39 2022
    On Wed, 6 Jul 2022 14:29:30 -0700 (PDT), Greg Guarino
    <gdguarino@gmail.com> wrote:

    On Wednesday, July 6, 2022 at 2:00:39 PM UTC-4, k...@notreal.com wrote:
    On Wed, 6 Jul 2022 12:06:17 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/5/2022 10:55 PM, Greg Guarino wrote:
    On Tuesday, July 5, 2022 at 3:11:50 PM UTC-4, k...@notreal.com wrote:
    On Tue, 5 Jul 2022 12:27:06 -0500, Leon <lcb11211@swbelldotnet> wrote: >> >>>
    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to
    find such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?




    https://www.amazon.com/dp/B01LX50EVT/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LX50EVT&pd_rd_w=hRCkh&content-id=amzn1.sym.3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_p=3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_r=B4P7J62MN5SA6FWGRXHA&pd_rd_wg=diMqz&pd_
    rd_r=d81a90b2-2515-4e9f-94c9-6e484083885c&s=hi&spLa= ZW5jcnlwdGVkUXVhbGlmaWVyPUExQ1k3MDQ0MEhaTUhBJmVuY3J5cHRlZElkPUEwNDg4Njk2M0xMS0FJTkwwU05NOCZlbmNyeXB0ZWRBZElkPUEwNjM4MDg1SjA3V0xXT01CQ0ozJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
    He was afraid of screwing up his fixture if a longer bit slipped. I
    think he wanted a bit exactly the depth of his dado.

    In the past, partly because it was the bit I had, I made 1/4" deep dados. Which worked fine, but I'd like to at least have the choice to make them 3/8" deep. I'd prefer to do it in one pass. Although I I've never actually done that, so that might
    be too big a bite all at once.

    And yes, I do wonder if there's a greater chance to somehow nick the "runners" when so much of a 3/4" deep cutter is "extra" and microscopically close to the runner. All it would take is a little tilt. Which, granted, shouldn't happen, but it's
    easy to get distracted.


    Remember, once you have the established dado/groove you can make it
    deeper by using it's sides as the bearing guide.
    How do you do that. He's going from 1/4" to 3/8". The cutter length
    is certainly more than 1/4". The bearing will still be out of the
    piece. Obviously a bottom bearing isn't going to work.

    I assume he means to do it while the work is still in the jig. The easiest way being with a plunge router so you can repeatedly go back and forth between "first pass" depth and second pass.

    That's not the way I interpreted it.

    "> >Remember, once you have the established dado/groove you can make
    "> >it deeper by using it's sides as the bearing guide."
    ^^^^

    "it's" references "dado/groove", not the tool, which isn't mentioned
    in sentence.

    Using your interpretation, the dado/groove could be done in one pass.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Leon@21:1/5 to krw@notreal.com on Fri Jul 8 10:11:54 2022
    On 7/6/2022 1:00 PM, krw@notreal.com wrote:
    On Wed, 6 Jul 2022 12:06:17 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/5/2022 10:55 PM, Greg Guarino wrote:
    On Tuesday, July 5, 2022 at 3:11:50 PM UTC-4, k...@notreal.com wrote:
    On Tue, 5 Jul 2022 12:27:06 -0500, Leon <lcb11211@swbelldotnet> wrote: >>>>
    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?




    https://www.amazon.com/dp/B01LX50EVT/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LX50EVT&pd_rd_w=hRCkh&content-id=amzn1.sym.3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_p=3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_r=B4P7J62MN5SA6FWGRXHA&pd_rd_wg=diMqz&pd_
    rd_r=d81a90b2-2515-4e9f-94c9-6e484083885c&s=hi&spLa= ZW5jcnlwdGVkUXVhbGlmaWVyPUExQ1k3MDQ0MEhaTUhBJmVuY3J5cHRlZElkPUEwNDg4Njk2M0xMS0FJTkwwU05NOCZlbmNyeXB0ZWRBZElkPUEwNjM4MDg1SjA3V0xXT01CQ0ozJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
    He was afraid of screwing up his fixture if a longer bit slipped. I
    think he wanted a bit exactly the depth of his dado.

    In the past, partly because it was the bit I had, I made 1/4" deep dados. Which worked fine, but I'd like to at least have the choice to make them 3/8" deep. I'd prefer to do it in one pass. Although I I've never actually done that, so that might be
    too big a bite all at once.

    And yes, I do wonder if there's a greater chance to somehow nick the "runners" when so much of a 3/4" deep cutter is "extra" and microscopically close to the runner. All it would take is a little tilt. Which, granted, shouldn't happen, but it's easy
    to get distracted.


    Remember, once you have the established dado/groove you can make it
    deeper by using it's sides as the bearing guide.

    How do you do that. He's going from 1/4" to 3/8". The cutter length
    is certainly more than 1/4". The bearing will still be out of the
    piece. Obviously a bottom bearing isn't going to work.

    If the cutter is 1/4" and the dado is 1/4" deep simply plunge 1/8"
    deeper, then the bearing will ride along the existing 1/4" deep side.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Leon@21:1/5 to Greg Guarino on Fri Jul 8 10:14:56 2022
    On 7/6/2022 4:29 PM, Greg Guarino wrote:
    On Wednesday, July 6, 2022 at 2:00:39 PM UTC-4, k...@notreal.com wrote:
    On Wed, 6 Jul 2022 12:06:17 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/5/2022 10:55 PM, Greg Guarino wrote:
    On Tuesday, July 5, 2022 at 3:11:50 PM UTC-4, k...@notreal.com wrote: >>>>> On Tue, 5 Jul 2022 12:27:06 -0500, Leon <lcb11211@swbelldotnet> wrote: >>>>>
    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?




    https://www.amazon.com/dp/B01LX50EVT/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LX50EVT&pd_rd_w=hRCkh&content-id=amzn1.sym.3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_p=3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_r=B4P7J62MN5SA6FWGRXHA&pd_rd_wg=diMqz&pd_
    rd_r=d81a90b2-2515-4e9f-94c9-6e484083885c&s=hi&spLa= ZW5jcnlwdGVkUXVhbGlmaWVyPUExQ1k3MDQ0MEhaTUhBJmVuY3J5cHRlZElkPUEwNDg4Njk2M0xMS0FJTkwwU05NOCZlbmNyeXB0ZWRBZElkPUEwNjM4MDg1SjA3V0xXT01CQ0ozJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
    He was afraid of screwing up his fixture if a longer bit slipped. I
    think he wanted a bit exactly the depth of his dado.

    In the past, partly because it was the bit I had, I made 1/4" deep dados. Which worked fine, but I'd like to at least have the choice to make them 3/8" deep. I'd prefer to do it in one pass. Although I I've never actually done that, so that might be
    too big a bite all at once.

    And yes, I do wonder if there's a greater chance to somehow nick the "runners" when so much of a 3/4" deep cutter is "extra" and microscopically close to the runner. All it would take is a little tilt. Which, granted, shouldn't happen, but it's easy
    to get distracted.


    Remember, once you have the established dado/groove you can make it
    deeper by using it's sides as the bearing guide.
    How do you do that. He's going from 1/4" to 3/8". The cutter length
    is certainly more than 1/4". The bearing will still be out of the
    piece. Obviously a bottom bearing isn't going to work.

    I assume he means to do it while the work is still in the jig. The easiest way being with a plunge router so you can repeatedly go back and forth between "first pass" depth and second pass.



    No, no longer in/on the jig. You still have to be careful to not hit
    the sides with the cutter portion of the bit before plunging. The same
    thing you do with the jig.

    But once plunged deeper the bearing will be low enough to hit the sides
    of the dado.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to Leon on Fri Jul 8 19:38:09 2022
    On Fri, 8 Jul 2022 10:11:54 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/6/2022 1:00 PM, krw@notreal.com wrote:
    On Wed, 6 Jul 2022 12:06:17 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/5/2022 10:55 PM, Greg Guarino wrote:
    On Tuesday, July 5, 2022 at 3:11:50 PM UTC-4, k...@notreal.com wrote: >>>>> On Tue, 5 Jul 2022 12:27:06 -0500, Leon <lcb11211@swbelldotnet> wrote: >>>>>
    On 7/4/2022 7:37 PM, Greg Guarino wrote:
    I made this router dado jig for an upcoming project. It's my third iteration of this jig and hopefully my last. (The first, made ten years ago, was crude but reasonably effective, the second was better but got damaged in a flood).

    https://flic.kr/p/2nw3SV8

    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of cut and a 1/4" shaft. That works, but I'd like to at least have the option of a deeper dado. Ideally it would be 1/2" in diameter with a 3/8" depth of cut. I can't seem to find
    such a thing. I saw some much deeper bits, but I feel like I might get clumsy someday and more easily damage the "runners" of the jig. Any ideas?




    https://www.amazon.com/dp/B01LX50EVT/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LX50EVT&pd_rd_w=hRCkh&content-id=amzn1.sym.3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_p=3be1c5b9-5b41-4830-a902-fa8556c19eb5&pf_rd_r=B4P7J62MN5SA6FWGRXHA&pd_rd_wg=diMqz&pd_
    rd_r=d81a90b2-2515-4e9f-94c9-6e484083885c&s=hi&spLa= ZW5jcnlwdGVkUXVhbGlmaWVyPUExQ1k3MDQ0MEhaTUhBJmVuY3J5cHRlZElkPUEwNDg4Njk2M0xMS0FJTkwwU05NOCZlbmNyeXB0ZWRBZElkPUEwNjM4MDg1SjA3V0xXT01CQ0ozJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
    He was afraid of screwing up his fixture if a longer bit slipped. I
    think he wanted a bit exactly the depth of his dado.

    In the past, partly because it was the bit I had, I made 1/4" deep dados. Which worked fine, but I'd like to at least have the choice to make them 3/8" deep. I'd prefer to do it in one pass. Although I I've never actually done that, so that might be
    too big a bite all at once.

    And yes, I do wonder if there's a greater chance to somehow nick the "runners" when so much of a 3/4" deep cutter is "extra" and microscopically close to the runner. All it would take is a little tilt. Which, granted, shouldn't happen, but it's easy
    to get distracted.


    Remember, once you have the established dado/groove you can make it
    deeper by using it's sides as the bearing guide.

    How do you do that. He's going from 1/4" to 3/8". The cutter length
    is certainly more than 1/4". The bearing will still be out of the
    piece. Obviously a bottom bearing isn't going to work.

    If the cutter is 1/4" and the dado is 1/4" deep simply plunge 1/8"
    deeper, then the bearing will ride along the existing 1/4" deep side.

    Ok, that's a mighty short trim bit.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Leon@21:1/5 to krw@notreal.com on Sat Jul 9 10:14:18 2022
    On 7/8/2022 6:38 PM, krw@notreal.com wrote:
    On Fri, 8 Jul 2022 10:11:54 -0500, Leon <lcb11211@swbelldotnet> wrote:

    Snip




    How do you do that. He's going from 1/4" to 3/8". The cutter length
    is certainly more than 1/4". The bearing will still be out of the
    piece. Obviously a bottom bearing isn't going to work.

    If the cutter is 1/4" and the dado is 1/4" deep simply plunge 1/8"
    deeper, then the bearing will ride along the existing 1/4" deep side.

    Ok, that's a mighty short trim bit.


    The same as what the OP mentioned, he said,


    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of
    cut and a 1/4" shaft.

    Me,

    I personally use a 1/2" depth of cut bit and often cut to a deeper depth.


    I did an airplane display for Volga Neper Airlines and needed to bore a
    5/8" hole in the center of the top of a post with a top set at 30
    degrees. A DP was way too much trouble.

    I drilled a 5/8" hole in a piece of plywood and attached that plywood to
    the top of the angled top post. I plunged 1/2" deep, removed the
    plywood and then proceeded to plunge deeper with out the plywood template.
    Once I reached about 1" deep I followed with a 5/8" brad point bit to
    reach the desired depth 3~4". The starter hole guided the drill bit so
    that it went down perpendicular to the surface. I had to think about
    that one for a while to figure that one out.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Leon@21:1/5 to Leon on Sat Jul 9 10:38:58 2022
    On 7/9/2022 10:14 AM, Leon wrote:
    On 7/8/2022 6:38 PM, krw@notreal.com wrote:
    On Fri, 8 Jul 2022 10:11:54 -0500, Leon <lcb11211@swbelldotnet> wrote:

    Snip




    How do you do that.  He's going from 1/4" to 3/8".  The cutter length >>>> is certainly more than 1/4".  The bearing will still be out of the
    piece. Obviously a bottom bearing isn't going to work.

    If the cutter is 1/4" and the dado is 1/4" deep simply plunge 1/8"
    deeper, then the bearing will ride along the existing 1/4" deep side.

    Ok, that's a mighty short trim bit.


    The same as what the OP mentioned, he said,


    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of
    cut and a 1/4" shaft.

    Me,

    I personally use a 1/2" depth of cut bit and often cut to a deeper depth.


    I did an airplane display for Volga Neper Airlines and needed to bore a
    5/8" hole in the center of the top of a post with a top set at 30 degrees.   A DP was way too much trouble.

    I drilled a 5/8" hole in a piece of plywood and attached that plywood to
    the top of the angled top post.   I plunged 1/2" deep, removed the
    plywood and then proceeded to plunge deeper with out the plywood template. Once I reached about 1" deep I followed with a 5/8" brad point bit to
    reach the desired depth 3~4".   The starter hole guided the drill bit so that it went down perpendicular to the surface.   I had to think about
    that one for a while to figure that one out.




    And this is what I was talking about.

    This is a close up of the under belly.

    https://flickr.com/photos/lcb11211/8328042746/in/datetaken/


    A close up of the rod going in perpendicular to the post surface.

    https://flickr.com/photos/lcb11211/8328041568/in/datetaken/


    And the posts going through the top of the cabinet and indexing below
    for leverage.
    The larger airplane was 60" long and had a 60" wing span. There was considerable stress on the threaded rod holding the models.

    https://flickr.com/photos/lcb11211/8328048268/in/datetaken/


    And finally at the convention center. Notice the guy standing in behind
    the airplane display..

    https://flickr.com/photos/lcb11211/8538589223/in/datetaken/


    This display along with the other props were broke down and were loaded
    into unique cargo shipping containers over and over all over the world.
    The blue shipping containers seen here in my garage. One was also
    custom made for the cabinet that I built.

    https://flickr.com/photos/lcb11211/8328040186/in/datetaken/

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to Leon on Sun Jul 10 12:36:33 2022
    On Sat, 9 Jul 2022 10:14:18 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/8/2022 6:38 PM, krw@notreal.com wrote:
    On Fri, 8 Jul 2022 10:11:54 -0500, Leon <lcb11211@swbelldotnet> wrote:

    Snip




    How do you do that. He's going from 1/4" to 3/8". The cutter length
    is certainly more than 1/4". The bearing will still be out of the
    piece. Obviously a bottom bearing isn't going to work.

    If the cutter is 1/4" and the dado is 1/4" deep simply plunge 1/8"
    deeper, then the bearing will ride along the existing 1/4" deep side.

    Ok, that's a mighty short trim bit.


    The same as what the OP mentioned, he said,


    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of
    cut and a 1/4" shaft.

    I did miss (forget) the 1/4" depth part of the bit. I've never seen
    one that short. It seems like a really odd bit to me but that _is_
    what he said.

    Me,

    I personally use a 1/2" depth of cut bit and often cut to a deeper depth.


    I did an airplane display for Volga Neper Airlines and needed to bore a
    5/8" hole in the center of the top of a post with a top set at 30
    degrees. A DP was way too much trouble.

    I drilled a 5/8" hole in a piece of plywood and attached that plywood to
    the top of the angled top post. I plunged 1/2" deep, removed the
    plywood and then proceeded to plunge deeper with out the plywood template. >Once I reached about 1" deep I followed with a 5/8" brad point bit to
    reach the desired depth 3~4". The starter hole guided the drill bit so
    that it went down perpendicular to the surface. I had to think about
    that one for a while to figure that one out.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Greg Guarino@21:1/5 to k...@notreal.com on Mon Jul 11 06:24:25 2022
    On Sunday, July 10, 2022 at 12:36:38 PM UTC-4, k...@notreal.com wrote:
    On Sat, 9 Jul 2022 10:14:18 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/8/2022 6:38 PM, k...@notreal.com wrote:
    On Fri, 8 Jul 2022 10:11:54 -0500, Leon <lcb11211@swbelldotnet> wrote:

    Snip




    How do you do that. He's going from 1/4" to 3/8". The cutter length
    is certainly more than 1/4". The bearing will still be out of the
    piece. Obviously a bottom bearing isn't going to work.

    If the cutter is 1/4" and the dado is 1/4" deep simply plunge 1/8"
    deeper, then the bearing will ride along the existing 1/4" deep side.

    Ok, that's a mighty short trim bit.


    The same as what the OP mentioned, he said,


    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of
    cut and a 1/4" shaft.
    I did miss (forget) the 1/4" depth part of the bit. I've never seen
    one that short. It seems like a really odd bit to me but that _is_
    what he said.
    Me,

    I personally use a 1/2" depth of cut bit and often cut to a deeper depth.


    I did an airplane display for Volga Neper Airlines and needed to bore a >5/8" hole in the center of the top of a post with a top set at 30
    degrees. A DP was way too much trouble.

    I drilled a 5/8" hole in a piece of plywood and attached that plywood to >the top of the angled top post. I plunged 1/2" deep, removed the
    plywood and then proceeded to plunge deeper with out the plywood template. >Once I reached about 1" deep I followed with a 5/8" brad point bit to
    reach the desired depth 3~4". The starter hole guided the drill bit so
    that it went down perpendicular to the surface. I had to think about
    that one for a while to figure that one out.

    Yep, it's 1/4" all right. Here's an old photo of the bit in my very first dado jig:

    https://flic.kr/p/dEwuHu

    I made my original post because I was (am) having trouble finding a bit that's a little deeper, but not a lot deeper.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to gdguarino@gmail.com on Mon Jul 11 21:02:42 2022
    On Mon, 11 Jul 2022 06:24:25 -0700 (PDT), Greg Guarino
    <gdguarino@gmail.com> wrote:

    On Sunday, July 10, 2022 at 12:36:38 PM UTC-4, k...@notreal.com wrote:
    On Sat, 9 Jul 2022 10:14:18 -0500, Leon <lcb11211@swbelldotnet> wrote:

    On 7/8/2022 6:38 PM, k...@notreal.com wrote:
    On Fri, 8 Jul 2022 10:11:54 -0500, Leon <lcb11211@swbelldotnet> wrote:

    Snip




    How do you do that. He's going from 1/4" to 3/8". The cutter length
    is certainly more than 1/4". The bearing will still be out of the
    piece. Obviously a bottom bearing isn't going to work.

    If the cutter is 1/4" and the dado is 1/4" deep simply plunge 1/8"
    deeper, then the bearing will ride along the existing 1/4" deep side.

    Ok, that's a mighty short trim bit.


    The same as what the OP mentioned, he said,


    I have a flush-trim bit that is 1/2" in diameter with a 1/4" depth of
    cut and a 1/4" shaft.
    I did miss (forget) the 1/4" depth part of the bit. I've never seen
    one that short. It seems like a really odd bit to me but that _is_
    what he said.
    Me,

    I personally use a 1/2" depth of cut bit and often cut to a deeper depth. >> >

    I did an airplane display for Volga Neper Airlines and needed to bore a
    5/8" hole in the center of the top of a post with a top set at 30
    degrees. A DP was way too much trouble.

    I drilled a 5/8" hole in a piece of plywood and attached that plywood to
    the top of the angled top post. I plunged 1/2" deep, removed the
    plywood and then proceeded to plunge deeper with out the plywood template. >> >Once I reached about 1" deep I followed with a 5/8" brad point bit to
    reach the desired depth 3~4". The starter hole guided the drill bit so
    that it went down perpendicular to the surface. I had to think about
    that one for a while to figure that one out.

    Yep, it's 1/4" all right. Here's an old photo of the bit in my very first dado jig:

    https://flic.kr/p/dEwuHu

    I made my original post because I was (am) having trouble finding a bit that's a little deeper, but not a lot deeper.

    It looks useful but I haven't seen anything like it before. In that
    case, Leon's solution is a good one.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)