2 Replies Latest reply on Sep 19, 2018 9:16 PM by Tom Helsley

Working backwards from flat pattern

Kody Spaberg Sep 19, 2018 4:46 PM

I have the flat pattern and a drawing of the bent sheet piece that I need. I'm coming across the issue that bend deductions were accounted for in the flat and that when I bend the flat pattern to try and achieve the bent piece that my dimensions are off from the drawing (they are all under, so I'm pretty sure this is a k factor thing from the original file). Without recreating the bent piece (I'd like to work from the flat backwards) first, how can I account for this?

Re: Working backwards from flat pattern

Frederick Law Sep 19, 2018 4:53 PM (in response to Kody Spaberg)

Change k-factor in your sheetmetal setting until you get the right size after bend.
Also you need to know bend radius of all the bends.
Like Show 1 Likes(1)

Actions
Re: Working backwards from flat pattern

Tom Helsley Sep 19, 2018 9:16 PM (in response to Kody Spaberg)

Ugh! Why?

That sounds worse than drafting a sheet metal part on vellum with pencil and paper. Even then, we didn't go backwards from the flat pattern. You need to know what your bend radii, bend angles, and K-factors to develop the flat pattern.
Like Show 1 Likes(1)

Actions

Go to original post