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> group buy?, 914 tub in milled alloy
messix
post Jun 24 2015, 10:53 AM
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Done in this


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Tom_T
post Jun 24 2015, 11:01 AM
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Why not!? (IMG:style_emoticons/default/confused24.gif)
... but that may not have the height for the full "Body in White" 914 tub with rollbar & windscreen frame, plus it's harder to mill the inner supports & "hollows" to leave the exterior skin.

So how about the opposite & build up the alloy tub with metal-alloy 3D printing!? (IMG:style_emoticons/default/confused24.gif)

I recently read about a guy in Europe 3D printing a bridge in steel, so I vote for this method!! (IMG:style_emoticons/default/biggrin.gif)

http://www.zdnet.com/article/dutch-startup...ing-two-robots/


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.

If they can do a bridge, then they can do any vintage car body/tub!! (IMG:style_emoticons/default/piratenanner.gif)

Cheers! (IMG:style_emoticons/default/beerchug.gif)
Tom
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stugray
post Jun 24 2015, 12:07 PM
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This is a story about a CNC milled cobra.

http://www.telovation.com/articles/how-bui...inum-cobra.html

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The story I read years ago was that the CNC machine wasnt big enough to do the whole chassis in one pass.
So they used the CNC head to move the workpiece around on the table to get more reach.
By using the CNC to move the workpiece, they maintained perfect positioning.
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bandjoey
post Jun 24 2015, 03:25 PM
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GE is using metal and carbon fiber 3d printers to make jet engines. Why not a car?
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Mueller
post Jun 24 2015, 03:50 PM
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QUOTE(stugray @ Jun 24 2015, 11:07 AM) *

This is a story about a CNC milled cobra.



[
The story I read years ago was that the CNC machine wasnt big enough to do the whole chassis in one pass.
So they used the CNC head to move the workpiece around on the table to get more reach.
By using the CNC to move the workpiece, they maintained perfect positioning.


According to the builder no plans on making it from a solid billet since he mentions the bolt together method.

There have been CNC machines large enough and accurate enough for decades that could machine a billet that big.

I'd rather have the frame with bolt on components, easier and cheaper to repair/replace.

http://www.kirkhammotorsports.com/book_aoe/aoe_03.pdf
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Mueller
post Jun 24 2015, 03:51 PM
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QUOTE(bandjoey @ Jun 24 2015, 02:25 PM) *

GE is using metal and carbon fiber 3d printers to make jet engines. Why not a car?



https://www.youtube.com/watch?v=HXvIMRklWiM
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76-914
post Jun 24 2015, 04:06 PM
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QUOTE(Mueller @ Jun 24 2015, 02:50 PM) *

QUOTE(stugray @ Jun 24 2015, 11:07 AM) *

This is a story about a CNC milled cobra.



[
The story I read years ago was that the CNC machine wasnt big enough to do the whole chassis in one pass.
So they used the CNC head to move the workpiece around on the table to get more reach.
By using the CNC to move the workpiece, they maintained perfect positioning.


According to the builder no plans on making it from a solid billet since he mentions the bolt together method.

There have been CNC machines large enough and accurate enough for decades that could machine a billet that big.

I'd rather have the frame with bolt on components, easier and cheaper to repair/replace.

http://www.kirkhammotorsports.com/book_aoe/aoe_03.pdf

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budk
post Jun 24 2015, 06:26 PM
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RTI uses a 3d printer to make parts out of titanium..... I guess almost anything is possible if you throw enough $$ at it.
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Tom_T
post Jun 24 2015, 06:36 PM
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IMHO 3D & CAD/CAM Milling printing will be the preferred & most economical way to get/make low volume replacement parts for vintage & classic cars, truck, buses, boats, aircraft, etc.

They do some amazing stuff with 3D printers for modelling even now & for the past few years, in the major mfgrs. auto design studios now!

The Art Center School of Design has several which we've seen & the end products, when the auto design chair Stuart Reed gives the tours at the annual PCA SGVR Concours at their campus in Pasadena every year.

It's one of those PCA Concours with an extra bonus, if you're at all interested in auto design! Usually in April. (IMG:style_emoticons/default/idea.gif) .... April 2016! (IMG:style_emoticons/default/popcorn[1].gif)

Stu is also a VW Vanagon Westy guy, of all things for a top international auto designer & educator!

Cheers! (IMG:style_emoticons/default/beerchug.gif)
Tom
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