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  • 3D printed rockets?

    From Chris L Peterson@21:1/5 to All on Thu Aug 19 22:13:23 2021
    On Thu, 19 Aug 2021 20:42:06 -0700 (PDT), RichA <rander3128@gmail.com>
    wrote:

    On Thursday, 12 August 2021 at 19:44:37 UTC-4, StarDust wrote:
    https://youtu.be/kz165f1g8-E

    Would it work?
    For modeling , yes, but to fly?

    3D printing means being able to print pretty much any shape (squares with hollows inside, things impossible with traditional machining) you want so if they can figure out a way to fuse metal to the point where it's as good as machining from a billet, it
    could work. But they haven't yet.

    They have. These 3D printed structures are stronger than machined
    equivalents.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From RichA@21:1/5 to StarDust on Thu Aug 19 20:42:06 2021
    On Thursday, 12 August 2021 at 19:44:37 UTC-4, StarDust wrote:
    https://youtu.be/kz165f1g8-E

    Would it work?
    For modeling , yes, but to fly?

    3D printing means being able to print pretty much any shape (squares with hollows inside, things impossible with traditional machining) you want so if they can figure out a way to fuse metal to the point where it's as good as machining from a billet, it
    could work. But they haven't yet.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From StarDust@21:1/5 to RichA on Thu Aug 19 21:29:08 2021
    On Thursday, August 19, 2021 at 8:42:07 PM UTC-7, RichA wrote:
    On Thursday, 12 August 2021 at 19:44:37 UTC-4, StarDust wrote:
    https://youtu.be/kz165f1g8-E

    Would it work?
    For modeling , yes, but to fly?
    3D printing means being able to print pretty much any shape (squares with hollows inside, things impossible with traditional machining) you want so if they can figure out a way to fuse metal to the point where it's as good as machining from a billet,
    it could work. But they haven't yet.

    BS! You can cast squares with hollow inside!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From StarDust@21:1/5 to Chris L Peterson on Thu Aug 19 21:25:23 2021
    On Thursday, August 19, 2021 at 9:13:27 PM UTC-7, Chris L Peterson wrote:
    On Thu, 19 Aug 2021 20:42:06 -0700 (PDT), RichA <rande...@gmail.com>
    wrote:
    On Thursday, 12 August 2021 at 19:44:37 UTC-4, StarDust wrote:
    https://youtu.be/kz165f1g8-E

    Would it work?
    For modeling , yes, but to fly?

    3D printing means being able to print pretty much any shape (squares with hollows inside, things impossible with traditional machining) you want so if they can figure out a way to fuse metal to the point where it's as good as machining from a billet,
    it could work. But they haven't yet.
    They have. These 3D printed structures are stronger than machined equivalents.

    Not really!
    Can you 3D print with titanium (used in aerospace extensively) or 304 SST etc...?
    I don't think so!
    These 3D printed metals are not stronger than cast metal, I think!
    Forging is what gives metal the strength, even for Aluminum.
    Yes, you can 3D print a Japanese sword, it looks like the real one, but not the same, because the quality of the steel, which is forged many many times and gives the HQ for the steel , sharpness and strength!
    You guys flunked in metallurgy!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Chris L Peterson@21:1/5 to All on Fri Aug 20 08:12:38 2021
    On Thu, 19 Aug 2021 21:29:08 -0700 (PDT), StarDust <csoka01@gmail.com>
    wrote:

    On Thursday, August 19, 2021 at 8:42:07 PM UTC-7, RichA wrote:
    On Thursday, 12 August 2021 at 19:44:37 UTC-4, StarDust wrote:
    https://youtu.be/kz165f1g8-E

    Would it work?
    For modeling , yes, but to fly?
    3D printing means being able to print pretty much any shape (squares with hollows inside, things impossible with traditional machining) you want so if they can figure out a way to fuse metal to the point where it's as good as machining from a billet,
    it could work. But they haven't yet.

    BS! You can cast squares with hollow inside!

    Not with arbitrary wall profiles, you can't.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Chris L Peterson@21:1/5 to All on Fri Aug 20 08:11:47 2021
    On Thu, 19 Aug 2021 21:25:23 -0700 (PDT), StarDust <csoka01@gmail.com>
    wrote:

    On Thursday, August 19, 2021 at 9:13:27 PM UTC-7, Chris L Peterson wrote:
    On Thu, 19 Aug 2021 20:42:06 -0700 (PDT), RichA <rande...@gmail.com>
    wrote:
    On Thursday, 12 August 2021 at 19:44:37 UTC-4, StarDust wrote:
    https://youtu.be/kz165f1g8-E

    Would it work?
    For modeling , yes, but to fly?

    3D printing means being able to print pretty much any shape (squares with hollows inside, things impossible with traditional machining) you want so if they can figure out a way to fuse metal to the point where it's as good as machining from a billet,
    it could work. But they haven't yet.
    They have. These 3D printed structures are stronger than machined
    equivalents.

    Not really!
    Can you 3D print with titanium (used in aerospace extensively) or 304 SST etc...?

    Absolutely. Turbine fans in jet engines are now being 3D printed from
    titanium.

    These 3D printed metals are not stronger than cast metal, I think!

    You think wrong. The ability to finely control the temperature allows
    for very precise tempering. In many applications the result is a
    stronger alloy than you have starting with a solid material and
    machining parts of it away.

    3D printing also allows the use of alloys that are not readily
    castable, opening up new possibilities for designs. (And, of course,
    3D printing allows for entirely new designs that are impossible to
    make using any other technology.)

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From StarDust@21:1/5 to Chris L Peterson on Fri Aug 20 09:15:16 2021
    On Friday, August 20, 2021 at 7:11:50 AM UTC-7, Chris L Peterson wrote:
    On Thu, 19 Aug 2021 21:25:23 -0700 (PDT),
    wrote:
    On Thursday, August 19, 2021 at 9:13:27 PM UTC-7, Chris L Peterson wrote: >> On Thu, 19 Aug 2021 20:42:06 -0700 (PDT),
    wrote:
    On Thursday, 12 August 2021 at 19:44:37 UTC-4, StarDust wrote:
    https://youtu.be/kz165f1g8-E

    Would it work?
    For modeling , yes, but to fly?

    3D printing means being able to print pretty much any shape (squares with hollows inside, things impossible with traditional machining) you want so if they can figure out a way to fuse metal to the point where it's as good as machining from a
    billet, it could work. But they haven't yet.
    They have. These 3D printed structures are stronger than machined
    equivalents.

    Not really!
    Can you 3D print with titanium (used in aerospace extensively) or 304 SST etc...?
    Absolutely. Turbine fans in jet engines are now being 3D printed from titanium.

    Well, I suggest you fly with those jets!

    These 3D printed metals are not stronger than cast metal, I think!
    You think wrong. The ability to finely control the temperature allows
    for very precise tempering. In many applications the result is a
    stronger alloy than you have starting with a solid material and
    machining parts of it away.

    3D printing also allows the use of alloys that are not readily
    castable, opening up new possibilities for designs. (And, of course,
    3D printing allows for entirely new designs that are impossible to
    make using any other technology.)

    Dreaming!!!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From StarDust@21:1/5 to Chris L Peterson on Fri Aug 20 09:18:37 2021
    On Friday, August 20, 2021 at 7:12:41 AM UTC-7, Chris L Peterson wrote:
    On Thu, 19 Aug 2021 21:29:08 -0700 (PDT),
    wrote:
    On Thursday, August 19, 2021 at 8:42:07 PM UTC-7, RichA wrote:
    On Thursday, 12 August 2021 at 19:44:37 UTC-4, StarDust wrote:
    https://youtu.be/kz165f1g8-E

    Would it work?
    For modeling , yes, but to fly?
    3D printing means being able to print pretty much any shape (squares with hollows inside, things impossible with traditional machining) you want so if they can figure out a way to fuse metal to the point where it's as good as machining from a billet,
    it could work. But they haven't yet.

    BS! You can cast squares with hollow inside!
    Not with arbitrary wall profiles, you can't.

    Also, there is extruding, round, squared tubing, window frames etc...
    Lot faster than 3D printing.
    3D printing machines are expensive too.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Chris L Peterson@21:1/5 to All on Fri Aug 20 11:45:45 2021
    On Fri, 20 Aug 2021 09:18:37 -0700 (PDT), StarDust <csoka01@gmail.com>
    wrote:

    On Friday, August 20, 2021 at 7:12:41 AM UTC-7, Chris L Peterson wrote:
    On Thu, 19 Aug 2021 21:29:08 -0700 (PDT),
    wrote:
    On Thursday, August 19, 2021 at 8:42:07 PM UTC-7, RichA wrote:
    On Thursday, 12 August 2021 at 19:44:37 UTC-4, StarDust wrote:
    https://youtu.be/kz165f1g8-E

    Would it work?
    For modeling , yes, but to fly?
    3D printing means being able to print pretty much any shape (squares with hollows inside, things impossible with traditional machining) you want so if they can figure out a way to fuse metal to the point where it's as good as machining from a
    billet, it could work. But they haven't yet.

    BS! You can cast squares with hollow inside!
    Not with arbitrary wall profiles, you can't.

    Also, there is extruding, round, squared tubing, window frames etc...
    Lot faster than 3D printing.
    3D printing machines are expensive too.

    So? There is no suggestion of 3D printing replacing all other
    manufacturing methods. It is increasingly replacing subtractive
    machining, and will probably continue to do so. It offers significant opportunities with respect to increasing the strength of parts,
    reducing the number of subassemblies, and allowing for designs that
    are not possible with any other method. But that doesn't mean that
    conventional machining, extrusion processes, casting, or any other
    methods don't have their places.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Chris L Peterson@21:1/5 to All on Fri Aug 20 11:42:26 2021
    On Fri, 20 Aug 2021 09:15:16 -0700 (PDT), StarDust <csoka01@gmail.com>
    wrote:

    On Friday, August 20, 2021 at 7:11:50 AM UTC-7, Chris L Peterson wrote:
    On Thu, 19 Aug 2021 21:25:23 -0700 (PDT),
    wrote:
    On Thursday, August 19, 2021 at 9:13:27 PM UTC-7, Chris L Peterson wrote: >> >> On Thu, 19 Aug 2021 20:42:06 -0700 (PDT),
    wrote:
    On Thursday, 12 August 2021 at 19:44:37 UTC-4, StarDust wrote:
    https://youtu.be/kz165f1g8-E

    Would it work?
    For modeling , yes, but to fly?

    3D printing means being able to print pretty much any shape (squares with hollows inside, things impossible with traditional machining) you want so if they can figure out a way to fuse metal to the point where it's as good as machining from a
    billet, it could work. But they haven't yet.
    They have. These 3D printed structures are stronger than machined
    equivalents.

    Not really!
    Can you 3D print with titanium (used in aerospace extensively) or 304 SST etc...?
    Absolutely. Turbine fans in jet engines are now being 3D printed from
    titanium.

    Well, I suggest you fly with those jets!

    These 3D printed metals are not stronger than cast metal, I think!
    You think wrong. The ability to finely control the temperature allows
    for very precise tempering. In many applications the result is a
    stronger alloy than you have starting with a solid material and
    machining parts of it away.

    3D printing also allows the use of alloys that are not readily
    castable, opening up new possibilities for designs. (And, of course,
    3D printing allows for entirely new designs that are impossible to
    make using any other technology.)

    Dreaming!!!

    This is not the future. It is now. Standard manufacturing practice in
    many industries, with many materials.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From StarDust@21:1/5 to Chris L Peterson on Mon Aug 23 09:59:45 2021
    On Friday, August 20, 2021 at 10:42:29 AM UTC-7, Chris L Peterson wrote:
    On Fri, 20 Aug 2021 09:15:16 -0700 (PDT),
    wrote:
    On Friday, August 20, 2021 at 7:11:50 AM UTC-7, Chris L Peterson wrote:
    On Thu, 19 Aug 2021 21:25:23 -0700 (PDT),
    wrote:
    On Thursday, August 19, 2021 at 9:13:27 PM UTC-7, Chris L Peterson wrote:
    On Thu, 19 Aug 2021 20:42:06 -0700 (PDT),
    wrote:
    On Thursday, 12 August 2021 at 19:44:37 UTC-4, StarDust wrote:
    https://youtu.be/kz165f1g8-E

    Would it work?
    For modeling , yes, but to fly?

    3D printing means being able to print pretty much any shape (squares with hollows inside, things impossible with traditional machining) you want so if they can figure out a way to fuse metal to the point where it's as good as machining from a
    billet, it could work. But they haven't yet.
    They have. These 3D printed structures are stronger than machined
    equivalents.

    Not really!
    Can you 3D print with titanium (used in aerospace extensively) or 304 SST etc...?
    Absolutely. Turbine fans in jet engines are now being 3D printed from
    titanium.

    Well, I suggest you fly with those jets!

    These 3D printed metals are not stronger than cast metal, I think!
    You think wrong. The ability to finely control the temperature allows
    for very precise tempering. In many applications the result is a
    stronger alloy than you have starting with a solid material and
    machining parts of it away.

    3D printing also allows the use of alloys that are not readily
    castable, opening up new possibilities for designs. (And, of course,
    3D printing allows for entirely new designs that are impossible to
    make using any other technology.)

    Dreaming!!!
    This is not the future. It is now. Standard manufacturing practice in
    many industries, with many materials.

    What makes any metal stronger is forging!
    That's what black smiths do all day, heating and hammering the metal!
    Just heating and fusing metal powder together with laser is just like casting! Metal stays brittle, cracks, breaks easy, like any cast iron!
    Had my share of metallurgy back in engineering school, 40 years ago.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Chris L Peterson@21:1/5 to All on Mon Aug 23 14:58:48 2021
    On Mon, 23 Aug 2021 09:59:45 -0700 (PDT), StarDust <csoka01@gmail.com>
    wrote:

    This is not the future. It is now. Standard manufacturing practice in
    many industries, with many materials.

    What makes any metal stronger is forging!
    That's what black smiths do all day, heating and hammering the metal!
    Just heating and fusing metal powder together with laser is just like casting! >Metal stays brittle, cracks, breaks easy, like any cast iron!
    Had my share of metallurgy back in engineering school, 40 years ago.

    Most things are not made from forged metals.

    You are 40 years behind the times in your knowledge of metallurgy.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From StarDust@21:1/5 to Chris L Peterson on Mon Aug 23 14:52:04 2021
    On Monday, August 23, 2021 at 1:58:51 PM UTC-7, Chris L Peterson wrote:
    On Mon, 23 Aug 2021 09:59:45 -0700 (PDT),
    wrote:
    This is not the future. It is now. Standard manufacturing practice in
    many industries, with many materials.

    What makes any metal stronger is forging!
    That's what black smiths do all day, heating and hammering the metal!
    Just heating and fusing metal powder together with laser is just like casting!
    Metal stays brittle, cracks, breaks easy, like any cast iron!
    Had my share of metallurgy back in engineering school, 40 years ago.
    Most things are not made from forged metals.

    You are 40 years behind the times in your knowledge of metallurgy.

    Not 40 years, 20 years ago worked in aerospace as a specialist in mfg. parts. Even aluminum, the co. used some very strange types, like high silicon content, low thermo expansion types, bitch to machine, very abrasive. Even the T6061 is chemicaly forged
    Al, has extra strength.
    We used magnesium a lot, 3D print that, it goes on fire instantly.
    Back than we also had 3D printer, resin based, it was only used for model making.
    It was a very expensive machine!
    All parts, going out to space were torcher tested, had to survive certain G's , crashed, pulled apart etc...
    The hole satellite was mounted to a platform, was called shaker board, all electronic turned on, programs running and shaken for while and had to survive without any problem.
    If something goes wrong with a satellite , can't send mechanic out there to fix it.
    It must work 100% !
    Yes, crap happens, one sat had problem in space, after it was just 60% operational, which meant, pissed customer, big law suit!
    That's how things work!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From palsing@21:1/5 to StarDust on Mon Aug 23 17:34:28 2021
    On Monday, August 23, 2021 at 9:59:46 AM UTC-7, StarDust wrote:

    Metal stays brittle, cracks, breaks easy, like any cast iron!

    I think I could pound nails all day long with my cast iron frying pan and never worry about it cracking or breaking... but I admit that I have not actually tried that! *I* might break but I think my frying pan would be fine!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From StarDust@21:1/5 to palsing on Mon Aug 23 21:17:59 2021
    On Monday, August 23, 2021 at 5:34:29 PM UTC-7, palsing wrote:
    On Monday, August 23, 2021 at 9:59:46 AM UTC-7, StarDust wrote:

    Metal stays brittle, cracks, breaks easy, like any cast iron!
    I think I could pound nails all day long with my cast iron frying pan and never worry about it cracking or breaking... but I admit that I have not actually tried that! *I* might break but I think my frying pan would be fine!

    Once I bought some new, cheap Chines made hammer sets on the flee market! Turned out , it was made out of cast iron.
    All broke within a year or so, only used them a few times.
    I think, you frying pan handle would break first, very quickly!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From palsing@21:1/5 to StarDust on Mon Aug 23 21:31:59 2021
    On Monday, August 23, 2021 at 9:18:01 PM UTC-7, StarDust wrote:
    On Monday, August 23, 2021 at 5:34:29 PM UTC-7, palsing wrote:
    On Monday, August 23, 2021 at 9:59:46 AM UTC-7, StarDust wrote:

    Metal stays brittle, cracks, breaks easy, like any cast iron!
    I think I could pound nails all day long with my cast iron frying pan and never worry about it cracking or breaking... but I admit that I have not actually tried that! *I* might break but I think my frying pan would be fine!

    Once I bought some new, cheap Chines made hammer sets on the flee market! Turned out , it was made out of cast iron.
    All broke within a year or so, only used them a few times.
    I think, you frying pan handle would break first, very quickly!

    Well, this cast iron frying pan has been in my family since well before I was born... and I am 75... so I think you are wrong about that!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From StarDust@21:1/5 to palsing on Mon Aug 23 21:50:09 2021
    On Monday, August 23, 2021 at 9:32:01 PM UTC-7, palsing wrote:
    On Monday, August 23, 2021 at 9:18:01 PM UTC-7, StarDust wrote:
    On Monday, August 23, 2021 at 5:34:29 PM UTC-7, palsing wrote:
    On Monday, August 23, 2021 at 9:59:46 AM UTC-7, StarDust wrote:

    Metal stays brittle, cracks, breaks easy, like any cast iron!
    I think I could pound nails all day long with my cast iron frying pan and never worry about it cracking or breaking... but I admit that I have not actually tried that! *I* might break but I think my frying pan would be fine!

    Once I bought some new, cheap Chines made hammer sets on the flee market! Turned out , it was made out of cast iron.
    All broke within a year or so, only used them a few times.
    I think, you frying pan handle would break first, very quickly!
    Well, this cast iron frying pan has been in my family since well before I was born... and I am 75... so I think you are wrong about that!

    Well, I guess you have not try to hammer nail with it?
    🤢

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From StarDust@21:1/5 to palsing on Mon Aug 23 21:25:07 2021
    On Monday, August 23, 2021 at 5:34:29 PM UTC-7, palsing wrote:
    On Monday, August 23, 2021 at 9:59:46 AM UTC-7, StarDust wrote:

    Metal stays brittle, cracks, breaks easy, like any cast iron!
    I think I could pound nails all day long with my cast iron frying pan and never worry about it cracking or breaking... but I admit that I have not actually tried that! *I* might break but I think my frying pan would be fine!

    Blacksmithing - Forging a nail
    https://www.youtube.com/watch?v=ZBfkmPt-WYw

    No cast iron used here, eh?

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