Unfolding square tube IV2010

[okdok]

I'm unfolding a 30x40x2 mm square tube for tube laser. The tube is imported from STEP format.

The flat pattern is 1,5 mm too narrow - even when I increase the K-factor to 1,0.

Is there any work around to get a wider flat pattern.

okdok

IV 2010

HP-Z200 Pentium 3,3 GHz 

12 GB ram AtiFirePro V-4800

Windows 7-64 Pro

[JDMather]

How wide is it?
Attach the file here.

[okdok]

Unfolds to 133,1 mm - should unfold to 134,85

okdok

[JDMather]

How are you arriving at the figure 134,85?

[okdok]

That is what the guy with the tube laser asks for to use the DXF file from the flat pattern.

okdok

[JDMather]

Something doesn't make sense here.
The part will stretch as it is bent - so I would actually expect a smaller number - not a larger number.
Are they calculating the (kerf - not sure what you would call it with laser cutting) the removed material from stock, or the finished flat size?

Who is doing the folding - perhape the best solution is to simply give them the finished dimensions for the part and let them calculate as they see fit.  All you care about is the finished part dimensions.

[okdok · Accepted solution]

I don't know why the tube laser needs that size, but I have to deliver - one way ore the other. The problem seams to be that with the imported part, the only available parameter is the K-factor, otherwise I cold adjust the coner radie. I only hoped there would be something I had missed. I'll unfold in Inventor and then stretss a little further in AutoCad.

Thank you for your time.

okdok

[JDMather]

You could run Feature Recognition addin - http://labs.autodesk.com

or

remodel this simple part as a native Inventor part.