• Cutting brass

    From krw@notreal.com@21:1/5 to All on Sat Oct 8 18:51:00 2022
    I'm looking to a slot the heads of some brass knurled knobs. I was
    thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating.
    I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot
    at the right depth.

    Sound like a bad idea? Suggestion?

    --- SoupGate-Win32 v1.05
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  • From Joe Gwinn@21:1/5 to krw@notreal.com on Sat Oct 8 19:54:54 2022
    On Sat, 08 Oct 2022 18:51:00 -0400, krw@notreal.com wrote:


    I'm looking to a slot the heads of some brass knurled knobs. I was
    thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating.
    I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot
    at the right depth.

    Sound like a bad idea? Suggestion?

    While this can work for aluminum, a table saw is far too fast for
    brass.

    Joe Gwinn

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  • From Bob Davis@21:1/5 to k...@notreal.com on Sun Oct 9 07:33:59 2022
    On Saturday, October 8, 2022 at 5:51:08 PM UTC-5, k...@notreal.com wrote:
    I'm looking to a slot the heads of some brass knurled knobs. I was
    thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating.
    I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot
    at the right depth.

    Sound like a bad idea? Suggestion?

    This looks like a pretty good video on cutting metal:

    https://www.youtube.com/watch?v=PoubVW08Wy4

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Bob Davis@21:1/5 to k...@notreal.com on Sun Oct 9 07:23:32 2022
    On Saturday, October 8, 2022 at 5:51:08 PM UTC-5, k...@notreal.com wrote:
    I'm looking to a slot the heads of some brass knurled knobs. I was
    thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating.
    I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot
    at the right depth.

    Sound like a bad idea? Suggestion?

    Use an abrasive cutoff blade.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to wrobertdavis@gmail.com on Sun Oct 9 21:02:09 2022
    On Sun, 9 Oct 2022 07:23:32 -0700 (PDT), Bob Davis
    <wrobertdavis@gmail.com> wrote:

    On Saturday, October 8, 2022 at 5:51:08 PM UTC-5, k...@notreal.com wrote:
    I'm looking to a slot the heads of some brass knurled knobs. I was
    thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating.
    I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot
    at the right depth.

    Sound like a bad idea? Suggestion?

    Use an abrasive cutoff blade.

    That's a good idea. Amazon has 10" metal blades for $11. It says
    they're for chop saws but I don't see why it wouldn't work. The max
    RPM is in the 6K region so that shouldn't be a problem either. The
    manual for the Unisaw says the blade has to be rated for >4000RPM.

    Then there is a metal blade "for aluminum and non-ferrous metals": <https://www.amazon.com/TOMAX-10-Inch-Aluminum-Non-Ferrous-8-Inch/dp/B01LXDARMZ/ref=psdc_552292_t2_B0052IP0GO?th=1>

    I intend to bury the screws in a 2x4(?) so the blade won't be exposed
    in any case.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Grossbohlin@21:1/5 to John Grossbohlin on Mon Oct 10 08:37:36 2022
    On Monday, October 10, 2022 at 11:34:39 AM UTC-4, John Grossbohlin wrote:
    On Saturday, October 8, 2022 at 6:51:08 PM UTC-4, k...@notreal.com wrote:
    I'm looking to a slot the heads of some brass knurled knobs. I was thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating.
    I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot
    at the right depth.

    Sound like a bad idea? Suggestion?
    How many are you talking about here? If it's a handful or less I'd be inclined to do it with handtools..., e.g., hacksaw, slitting file, screw slot file. For relatively small knobs and slots the slitting and slot files would suffice. For relatively
    large knobs with larger slots the hacksaw would be the place to start. You could take it to the next level and clock the slots so they all line up when tight... e.g., install them with padded pliers and make the slot direction and then cut the slots. ;~)

    That should read "mark the slots" not "make the slots". ;~)

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Grossbohlin@21:1/5 to k...@notreal.com on Mon Oct 10 08:34:36 2022
    On Saturday, October 8, 2022 at 6:51:08 PM UTC-4, k...@notreal.com wrote:
    I'm looking to a slot the heads of some brass knurled knobs. I was
    thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating.
    I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot
    at the right depth.

    Sound like a bad idea? Suggestion?

    How many are you talking about here? If it's a handful or less I'd be inclined to do it with handtools..., e.g., hacksaw, slitting file, screw slot file. For relatively small knobs and slots the slitting and slot files would suffice. For relatively
    large knobs with larger slots the hacksaw would be the place to start. You could take it to the next level and clock the slots so they all line up when tight... e.g., install them with padded pliers and make the slot direction and then cut the slots. ;~)

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to grossboj@gmail.com on Mon Oct 10 22:42:23 2022
    On Mon, 10 Oct 2022 08:34:36 -0700 (PDT), John Grossbohlin
    <grossboj@gmail.com> wrote:

    On Saturday, October 8, 2022 at 6:51:08 PM UTC-4, k...@notreal.com wrote:
    I'm looking to a slot the heads of some brass knurled knobs. I was
    thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating.
    I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot
    at the right depth.

    Sound like a bad idea? Suggestion?

    How many are you talking about here? If it's a handful or less I'd be inclined to do it with handtools..., e.g., hacksaw, slitting file, screw slot file. For relatively small knobs and slots the slitting and slot files would suffice. For relatively
    large knobs with larger slots the hacksaw would be the place to start. You could take it to the next level and clock the slots so they all line up when tight... e.g., install them with padded pliers and make the slot direction and then cut the slots. ;~)

    The screws are 1/4-20 and the heads 3/4". The width of the slot isn't
    all that important. I'd like them to look nice. It's for a Shaper Workstation. ;-)

    I ordered a metal blade from Amazon. The description says it'll cut
    brass. I'll bury them in a 2x4 when I'm cutting so I shouldn't be in
    too much danger. I looked around online and I found many sites saying
    that it can be done but be careful of the "sticky" problem.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Grossbohlin@21:1/5 to k...@notreal.com on Mon Oct 10 20:35:16 2022
    On Monday, October 10, 2022 at 10:42:30 PM UTC-4, k...@notreal.com wrote:
    On Mon, 10 Oct 2022 08:34:36 -0700 (PDT), John Grossbohlin <gros...@gmail.com> wrote:

    How many are you talking about here? If it's a handful or less I'd be inclined to do it with handtools..., e.g., hacksaw, slitting file, screw slot file. For relatively small knobs and slots the slitting and slot files would suffice. For relatively
    large knobs with larger slots the hacksaw would be the place to start. You could take it to the next level and clock the slots so they all line up when tight... e.g., install them with padded pliers and make the slot direction and then cut the slots. ;~)
    The screws are 1/4-20 and the heads 3/4". The width of the slot isn't
    all that important. I'd like them to look nice. It's for a Shaper Workstation. ;-)

    I ordered a metal blade from Amazon. The description says it'll cut
    brass. I'll bury them in a 2x4 when I'm cutting so I shouldn't be in
    too much danger. I looked around online and I found many sites saying
    that it can be done but be careful of the "sticky" problem.

    Hand tools ≠ crude. ;~) The gunsmiths at Colonial Williamsburg make screws by hand and those guns sell for $10-20K+ (mostly depending on the barrel and lock used).

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to grossboj@gmail.com on Tue Oct 11 21:03:04 2022
    On Mon, 10 Oct 2022 20:35:16 -0700 (PDT), John Grossbohlin
    <grossboj@gmail.com> wrote:

    On Monday, October 10, 2022 at 10:42:30 PM UTC-4, k...@notreal.com wrote:
    On Mon, 10 Oct 2022 08:34:36 -0700 (PDT), John Grossbohlin
    <gros...@gmail.com> wrote:

    How many are you talking about here? If it's a handful or less I'd be inclined to do it with handtools..., e.g., hacksaw, slitting file, screw slot file. For relatively small knobs and slots the slitting and slot files would suffice. For relatively
    large knobs with larger slots the hacksaw would be the place to start. You could take it to the next level and clock the slots so they all line up when tight... e.g., install them with padded pliers and make the slot direction and then cut the slots. ;~)
    The screws are 1/4-20 and the heads 3/4". The width of the slot isn't
    all that important. I'd like them to look nice. It's for a Shaper
    Workstation. ;-)

    I ordered a metal blade from Amazon. The description says it'll cut
    brass. I'll bury them in a 2x4 when I'm cutting so I shouldn't be in
    too much danger. I looked around online and I found many sites saying
    that it can be done but be careful of the "sticky" problem.

    Hand tools ? crude. ;~) The gunsmiths at Colonial Williamsburg make screws by hand and those guns sell for $10-20K+ (mostly depending on the barrel and lock used).

    I'll let you know when I'm done with my gun. I'll expect $20,000.
    Cash (PayPal is reported to the 87,000 new IRS agents).

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Grossbohlin@21:1/5 to k...@notreal.com on Tue Oct 11 19:22:45 2022
    On Tuesday, October 11, 2022 at 9:03:10 PM UTC-4, k...@notreal.com wrote:
    On Mon, 10 Oct 2022 20:35:16 -0700 (PDT), John Grossbohlin

    Hand tools ? crude. ;~) The gunsmiths at Colonial Williamsburg make screws by hand and those guns sell for $10-20K+ (mostly depending on the barrel and lock used).

    I'll let you know when I'm done with my gun. I'll expect $20,000.
    Cash (PayPal is reported to the 87,000 new IRS agents).

    I have connections there... worked for the foundation.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to grossboj@gmail.com on Wed Oct 12 00:14:52 2022
    On Tue, 11 Oct 2022 19:22:45 -0700 (PDT), John Grossbohlin
    <grossboj@gmail.com> wrote:

    On Tuesday, October 11, 2022 at 9:03:10 PM UTC-4, k...@notreal.com wrote:
    On Mon, 10 Oct 2022 20:35:16 -0700 (PDT), John Grossbohlin

    Hand tools ? crude. ;~) The gunsmiths at Colonial Williamsburg make screws by hand and those guns sell for $10-20K+ (mostly depending on the barrel and lock used).

    I'll let you know when I'm done with my gun. I'll expect $20,000.
    Cash (PayPal is reported to the 87,000 new IRS agents).

    I have connections there... worked for the foundation.

    That's one of the wonders of the world. How did these guys, 250 years
    ago, make a rifle? A musket is one thing but a rifle is something
    else entirely. Gunsmithing really is high art.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Grossbohlin@21:1/5 to k...@notreal.com on Wed Oct 12 06:46:24 2022
    On Wednesday, October 12, 2022 at 12:14:59 AM UTC-4, k...@notreal.com wrote:
    On Tue, 11 Oct 2022 19:22:45 -0700 (PDT), John Grossbohlin
    wrote:

    On Tuesday, October 11, 2022 at 9:03:10 PM UTC-4, k...@notreal.com wrote: >> On Mon, 10 Oct 2022 20:35:16 -0700 (PDT), John Grossbohlin

    Hand tools ? crude. ;~) The gunsmiths at Colonial Williamsburg make screws by hand and those guns sell for $10-20K+ (mostly depending on the barrel and lock used).

    I'll let you know when I'm done with my gun. I'll expect $20,000.
    Cash (PayPal is reported to the 87,000 new IRS agents).

    I have connections there... worked for the foundation.
    That's one of the wonders of the world. How did these guys, 250 years
    ago, make a rifle? A musket is one thing but a rifle is something
    else entirely. Gunsmithing really is high art.

    You might be interested in the movie "The Gunsmith of Williamsburg." I saw that movie in school when it first came out (around '69 or '70) and wanted to do it... and about 17 years later I found myself working in the shop as a skilled craft interpreter.
    It's on YouTube. BTW, there are records of rifled guns going back to the 15th century, i.e., it was nothing new in the 18th century!

    https://www.youtube.com/watch?v=bAzJOULyx5c&list=PLLmc7jo1UFm9YLQR_BJVT5JBHs_gu4E9a

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Scott Lurndal@21:1/5 to krw@notreal.com on Wed Oct 12 14:05:29 2022
    krw@notreal.com writes:
    On Mon, 10 Oct 2022 20:35:16 -0700 (PDT), John Grossbohlin ><grossboj@gmail.com> wrote:

    Cash (PayPal is reported to the 87,000 new IRS agents).

    Good grief. 50,000 of those are to replace retiring agents,
    and the rest just return the IRS to a reasonable staffing level.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Leon@21:1/5 to Scott Lurndal on Wed Oct 12 09:41:44 2022
    On 10/12/2022 9:05 AM, Scott Lurndal wrote:
    krw@notreal.com writes:
    On Mon, 10 Oct 2022 20:35:16 -0700 (PDT), John Grossbohlin
    <grossboj@gmail.com> wrote:

    Cash (PayPal is reported to the 87,000 new IRS agents).

    Good grief. 50,000 of those are to replace retiring agents,
    and the rest just return the IRS to a reasonable staffing level.


    They are short staffed, my quarterly payment coupons just made it to my
    mail box in time for me to make a payment in April last year. And
    refunds seem to be taking much longer.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to All on Wed Oct 12 21:25:40 2022
    On Wed, 12 Oct 2022 14:05:29 GMT, scott@slp53.sl.home (Scott Lurndal)
    wrote:

    krw@notreal.com writes:
    On Mon, 10 Oct 2022 20:35:16 -0700 (PDT), John Grossbohlin >><grossboj@gmail.com> wrote:

    Cash (PayPal is reported to the 87,000 new IRS agents).

    Good grief. 50,000 of those are to replace retiring agents,
    and the rest just return the IRS to a reasonable staffing level.

    Tell us about the additional $80B, daddy.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From DerbyDad03@21:1/5 to k...@notreal.com on Wed Oct 12 18:27:04 2022
    On Saturday, October 8, 2022 at 6:51:08 PM UTC-4, k...@notreal.com wrote:
    I'm looking to a slot the heads of some brass knurled knobs. I was
    thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating.
    I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot
    at the right depth.

    Sound like a bad idea? Suggestion?

    I see you've met micky in another group. How that work out for you?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From DerbyDad03@21:1/5 to k...@notreal.com on Wed Oct 12 18:51:56 2022
    On Sunday, October 9, 2022 at 9:02:16 PM UTC-4, k...@notreal.com wrote:
    On Sun, 9 Oct 2022 07:23:32 -0700 (PDT), Bob Davis
    <wrober...@gmail.com> wrote:

    On Saturday, October 8, 2022 at 5:51:08 PM UTC-5, k...@notreal.com wrote:
    I'm looking to a slot the heads of some brass knurled knobs. I was
    thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating.
    I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot
    at the right depth.

    Sound like a bad idea? Suggestion?

    Use an abrasive cutoff blade.

    That's a good idea. Amazon has 10" metal blades for $11. It says
    they're for chop saws but I don't see why it wouldn't work. The max
    RPM is in the 6K region so that shouldn't be a problem either. The
    manual for the Unisaw says the blade has to be rated for >4000RPM.

    Then there is a metal blade "for aluminum and non-ferrous metals": <https://www.amazon.com/TOMAX-10-Inch-Aluminum-Non-Ferrous-8-Inch/dp/B01LXDARMZ/ref=psdc_552292_t2_B0052IP0GO?th=1>

    I intend to bury the screws in a 2x4(?) so the blade won't be exposed
    in any case.

    Don't you have an old Craftsman radial arm saw lying around?

    Back in my Soap Box Derby days, we used to use the abrasive cut off wheels
    in a Craftsman RAS to cut 1/2"+ steel plates, some has wide as 12". Many,
    many slow, shallow cuts.

    This is a picture of a rear axle mount. The view is into the rear of my son's car,
    the white "walls" being the fiberglass body of the car that tapered to a point at
    the rear. The 3/4" square stock running across the picture is the axle. You can see the holes where it comes through the shell. The other 5 pieces of steel, including the large base plate, make up the mount. They were all cut on the RAS.

    https://i.imgur.com/PYh58Pw.jpg

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to teamarrows@eznet.net on Wed Oct 12 23:58:29 2022
    On Wed, 12 Oct 2022 18:27:04 -0700 (PDT), DerbyDad03
    <teamarrows@eznet.net> wrote:

    On Saturday, October 8, 2022 at 6:51:08 PM UTC-4, k...@notreal.com wrote:
    I'm looking to a slot the heads of some brass knurled knobs. I was
    thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating.
    I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot
    at the right depth.

    Sound like a bad idea? Suggestion?

    I see you've met micky in another group. How that work out for you?

    Actually, I thought I was posting here at first. The signal to noise
    ratio is too low for me but as long as I made the mistake I thought
    I'd ride it.

    I don't know anything about Micky. He tried but a wingnut isn't going
    to work. I don't think he read my original post.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to teamarrows@eznet.net on Thu Oct 13 00:11:33 2022
    On Wed, 12 Oct 2022 18:51:56 -0700 (PDT), DerbyDad03
    <teamarrows@eznet.net> wrote:

    On Sunday, October 9, 2022 at 9:02:16 PM UTC-4, k...@notreal.com wrote:
    On Sun, 9 Oct 2022 07:23:32 -0700 (PDT), Bob Davis
    <wrober...@gmail.com> wrote:

    On Saturday, October 8, 2022 at 5:51:08 PM UTC-5, k...@notreal.com wrote: >> >> I'm looking to a slot the heads of some brass knurled knobs. I was
    thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating.
    I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot
    at the right depth.

    Sound like a bad idea? Suggestion?

    Use an abrasive cutoff blade.

    That's a good idea. Amazon has 10" metal blades for $11. It says
    they're for chop saws but I don't see why it wouldn't work. The max
    RPM is in the 6K region so that shouldn't be a problem either. The
    manual for the Unisaw says the blade has to be rated for >4000RPM.

    Then there is a metal blade "for aluminum and non-ferrous metals":
    <https://www.amazon.com/TOMAX-10-Inch-Aluminum-Non-Ferrous-8-Inch/dp/B01LXDARMZ/ref=psdc_552292_t2_B0052IP0GO?th=1>

    I intend to bury the screws in a 2x4(?) so the blade won't be exposed
    in any case.

    Don't you have an old Craftsman radial arm saw lying around?

    No, since I hadn't used it in 30 years, I found someone who wanted it.
    I gave it away a few months ago to the same friend I gave my Craftsman
    jointer to, last year. I was tired of looking at it and I wanted to
    put the bandsaw there (to get it closer to the DC).

    Back in my Soap Box Derby days, we used to use the abrasive cut off wheels
    in a Craftsman RAS to cut 1/2"+ steel plates, some has wide as 12". Many, >many slow, shallow cuts.

    This is a picture of a rear axle mount. The view is into the rear of my son's car,
    the white "walls" being the fiberglass body of the car that tapered to a point at
    the rear. The 3/4" square stock running across the picture is the axle. You can
    see the holes where it comes through the shell. The other 5 pieces of steel, >including the large base plate, make up the mount. They were all cut on the RAS.

    https://i.imgur.com/PYh58Pw.jpg

    Impressive. It all looks machined.

    Santa Amazon delivered the non-ferrous metal, table saw blade
    yesterday so I'll give it a try in the next couple of days.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From krw@notreal.com@21:1/5 to krw@notreal.com on Thu Oct 13 21:34:30 2022
    On Thu, 13 Oct 2022 00:11:33 -0400, krw@notreal.com wrote:

    On Wed, 12 Oct 2022 18:51:56 -0700 (PDT), DerbyDad03
    <teamarrows@eznet.net> wrote:

    On Sunday, October 9, 2022 at 9:02:16 PM UTC-4, k...@notreal.com wrote:
    On Sun, 9 Oct 2022 07:23:32 -0700 (PDT), Bob Davis
    <wrober...@gmail.com> wrote:

    On Saturday, October 8, 2022 at 5:51:08 PM UTC-5, k...@notreal.com wrote: >>> >> I'm looking to a slot the heads of some brass knurled knobs. I was
    thinking of mounting them in a line recessed in a piece of wood. I
    was going to use threaded inserts to hold the knobs and a jam nut
    on the back to fix the knob to hold its depth and keep from rotating. >>> >> I can then use my table saw (with an old carbide tip blade) to cut
    through the wood, and brass in small increments until I have the slot >>> >> at the right depth.

    Sound like a bad idea? Suggestion?

    Use an abrasive cutoff blade.

    That's a good idea. Amazon has 10" metal blades for $11. It says
    they're for chop saws but I don't see why it wouldn't work. The max
    RPM is in the 6K region so that shouldn't be a problem either. The
    manual for the Unisaw says the blade has to be rated for >4000RPM.

    Then there is a metal blade "for aluminum and non-ferrous metals":
    <https://www.amazon.com/TOMAX-10-Inch-Aluminum-Non-Ferrous-8-Inch/dp/B01LXDARMZ/ref=psdc_552292_t2_B0052IP0GO?th=1>

    I intend to bury the screws in a 2x4(?) so the blade won't be exposed
    in any case.

    Don't you have an old Craftsman radial arm saw lying around?

    No, since I hadn't used it in 30 years, I found someone who wanted it.
    I gave it away a few months ago to the same friend I gave my Craftsman >jointer to, last year. I was tired of looking at it and I wanted to
    put the bandsaw there (to get it closer to the DC).

    Back in my Soap Box Derby days, we used to use the abrasive cut off wheels >>in a Craftsman RAS to cut 1/2"+ steel plates, some has wide as 12". Many, >>many slow, shallow cuts.

    This is a picture of a rear axle mount. The view is into the rear of my son's car,
    the white "walls" being the fiberglass body of the car that tapered to a point at
    the rear. The 3/4" square stock running across the picture is the axle. You can
    see the holes where it comes through the shell. The other 5 pieces of steel, >>including the large base plate, make up the mount. They were all cut on the RAS.

    https://i.imgur.com/PYh58Pw.jpg

    Impressive. It all looks machined.

    Santa Amazon delivered the non-ferrous metal, table saw blade
    yesterday so I'll give it a try in the next couple of days.

    I built a jig today and tried the first four screws. The jig needs
    some work but it worked just fine. The brass knobs cut well. The
    problem is going to be getting the depth uniform with each use of the
    jig. The inserts I used didn't work at all. I'll try different ones
    soon.

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