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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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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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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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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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