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Sheet Metal

How can I add seam allowances in duct designs without collisions?
I am designing a bunch of ductwork parts for 24ga sheet metal for hand assembly (not welded), and I can't figure out how to add seam allowances for something like a Pittsburgh seam. In a flat layout, I'd just add 1" on one side of the rip joint for the pitt and 1/4" on the other side of the rip for the flange. But when the…
Can't break one specific corner – why is this?
I have a sheet metal and did some corner breaks. But somehow only one edge is not resolving, even if the same geometry on the other side works as expected. Can someone maybe help me find what the real issue is here? The same issue happens also when I use fillet instead of corner breaks… The underlying geometry is very…
Custom Feature: OnlyTabs - A premium sheet metal tab and slot feature
-Link to feature up front- A long time ago in the distant year of late 2024 our sheet metal obsessed production company was evaluating our CAD options and found ourselves checking out Onshape as an alternative to our old licenses of Solidworks. There were two main barriers in the way of our adoption, support for sheet…
Custom Feature: Butcher Sheet Metal - A Low Effort Sheet Metal Splitting Feature
-Link to feature up front- You ever find yourself yourself working on sheet metal parts and get to the very end of a build, go to send your parts out for fabrication and only realize at the last minute that your flat patterns are too big to fit on the laser bed? Then have to hack and cut to pieces the final product with…
Maintaining a stable body id when copying flat pattern body into standard part studio edit space
I have a feature that contains an option which allows the user to copy the flat pattern of a sheet metal part into the standard part studio editing space. The problem I have been having is, any time the part studio is edited and a new feature is added or removed which interacts with the parent sheet metal body, the flat…
Custom Feature: Bip Joints - A Hand Bendable Sheet Metal Joint Feature
-Link to feature up front- If you're a producer of sheet metal parts, or design your parts for sheet metal production, there's a strong possibility that your manufacturing pipeline is catered towards hard flat flanges with edges parallel to the bends because that's what the manufacturing process favors. This manufacturing…
Streamlining Sheet Metal Exports in Assembly
Hi, Just a plain question here. I created a configuration Part Studio, and import many variants in one subassembly. What is the most approachable way to export all the sheet metal parts flat pattern to DWG's? We're talking about around 50-150 instances of one configuration with 2 sheet metal parts, every week. Thanks in…
sheet metal model with text
I'm drawing up some "box signs" — basically sheet metal pizza boxes with numbers cut out — and am stumbling to make sheet metal model for them. The example in the pic is a shell with 1/16" thickness and no bottom face. The letters are extruded/removed from that. When I go to make a sheet metal model I spec the sign part,…
I wish to extend the walls but either method works
I am trying to extend the side walls but OnShape fails whether I extrude in any direction. I can only create a new object however then boolean will fail here is a link to the document itself should anyone wishes to inspect:…
Sheet metal adding weird extension to my part...
Hi there, I trying to mock a drone and to build it from cardboard. I have a laser cutting machine that I will export DXF from Onshape. I built the part, and with Sheet metal, I used the Convert option. I wonder why the sheet metal add this two long beams at the back of my plane. Any ideas what I am doing wrong? Thanks…
Help Debugging Custom Sheet‑Metal Nesting Feature (Parser Errors in Mid‑File Functions)
Hi everyone, I’m working on a custom FeatureScript for automated sheet‑metal nesting. The goal is to: - flatten all selected sheet‑metal parts - auto‑rotate them based on grain direction - place them onto a virtual sheet - draw grain‑direction arrows - draw bend‑direction arrows - generate a quantity list - and eventually…

Sheet Metal

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