Hi Rene - if you can, please upload the large file to www.rhino3d.com/upload to my (pascal) attention - if possible save a view that does not work right on your end - I’ll have a try at it here.
Ah, OK, I see you have already sent me something, I’ll take a look.
@rene1 -one thing I see is the casters on the cart are apparently made from MeshToNurb of mesh objects, and then made into blocks - the result of Make2D on one of these is thousands of curves - I would use the meshes in the blocks, I think making NURBS from them gets you nothing(?) and vastly complicates the file.
Make2D does behave correctly here as far as I can see so far.