No kidding. That's why I suggested using a configuration to create a flat pattern. Looking at the flat pattern image in #4 you can see that it has an Unbend and a Tab to create the required flat pattern.Alibre does not do formed sheet metal - no way to flat pattern that.
Why not? It is doable. In my previous employ we would do that on occasion for certain parts. The "trick" is to make one hole a few thou larger to allow for bend tolerance. And having CNC press brakes with precision die sets in the shop certainly helps.I think I can guarantee you do NOT want to do a flat pattern that includes holes that must align as-formed.
Why not? Most homebuilt kit planes are pre-punched match hole and formed parts from flat sheet. It's not an issue!I think I can guarantee you do NOT want to do a flat pattern that includes holes that must align as-formed.
I think I can guarantee you do NOT want to do a flat pattern that includes holes that must align as-formed.
As I recall, SW does create a flange like you want but it is basically a sweep feature (and it's called a Swept Flange) and the flat developed is not very accurate sometimes. But for your example it should be pretty close.SW maybe?
Why not? Most homebuilt kit planes are pre-punched match hole and formed parts from flat sheet. It's not an issue!
I think the answer is right there! ... The up shot is that if you have the right manufacturing tools (or your manufacturer is above average), then defining tight tolerance is not an issue in 2021 . I agree with you that I personally couldn't design and build to those tolerances in my limited workshop without pre-punching one hole and match drilling it to the other component!Yes, very new equipment can do pretty well,
The "trick" is to make one hole a few thou larger to allow for bend tolerance.