@rich o brien said:

@togo said:

which I still don't understand:

I don't think Clothworks is compatible with out My Licenses checker yet. I'll poke Anton and see if he will update it so it is included. But Fredo's stuff and my Pie for SketchUp are.

So if you purchase and validate a license for any of Fredo's stuff it will show up.

... what I purchased does not show up and I can't purchase any new, because I don#t use paypal 😞
Thanks anyway.

thank you, yes i will build some and maybe i will get closer to that ...

You can install the stl import export tool from the extension warehouse, the one created by the sketchup team, and that will export correctly. Once installed look for a different export option in the file menu.