Hi everyone,

I’m currently trying to model a part in SolidWorks to be cut on a Trumpf LaserTube 5000 machine. The idea is to start with a 50x30x2.6 mm rectangular tube, add some cutouts and holes, and generate a flat pattern to send to the workshop.

But when I try to flatten the part, I get this error:
“This part contains no sheet metal feature to flatten.”

⚙️ Context:

• I used a Weldment feature to insert a structural tube

• Then added several Base Flange features (sheet metal)

• Tried a Combine operation

• Inserted a Flatten feature — which fails

🎯 Goal:

I want to generate a valid flat pattern to be used with a Trumpf LaserTube 5000, from a standard tube with some custom geometry.

🛠 Has anyone ever modeled a similar part for the Trumpf LaserTube 5000?
💡 Are there specific workflows or plugins you’d recommend to generate a usable file for laser tube cutting?

Thanks in advance for your help! 🙏