Getting a loop length dimension, and other flattening questions

Getting a loop length dimension, and other flattening questions

mjp.purdy
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Getting a loop length dimension, and other flattening questions

mjp.purdy
Enthusiast
Enthusiast

Hello!

 

I was playing with the sheet metal module for a particular part, and discovered quickly that it's not meant for complex geometry, regardless of the part being made on a press. So I modeled it like I'd model any other part; way more complicated than it should be.

 

Now I want to flatten it. I'm not trying to make a perfect impression, but I would like to create a parameter driven by a sketch which collects arc lengths and line lengths; Then I can simply make a flat pattern with the right dimensions. Is this even possible? Most of the arcs aren't perpendicular, so making an equation for each arc is just craziness. 

 

Worst case scenario I simply measure each individual arc and tabulate it in excel, but I was hoping to be a bit more automated with changes. Attached is a screenshot of something similar, but the part in question is much more complicated. I'll try to make an example part at some point; It's robotics season, so got plenty of stuff coming!

 

 

sheet profile pic.jpg

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mjp.purdy
Enthusiast
Enthusiast

So.... I'm tired. It's been a rough few days.

 

Apparently there's an "unwrap" button... and you can loft two lines and thicken it into a surface...

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mcgyvr
Consultant
Consultant

Having a model of the exact geometry you would like to flatten would be very helpful...

 

I'm not sure I have seen anything that can be made in a normal press brake operation that Inventor cannot flatten. 



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Inventor 2023 - Dell Precision 5570

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Message 4 of 4

karthur1
Mentor
Mentor

Ditto what Mcg said... a model would help.

 

Inventor has no trouble getting a flat for the shape you show in your original message.  There are several different ways to get the flat length into a parameter. Been covered here many, many times.

 

Kirk