Just sticking my two cents worth in if it is OK. It is cool to see the two likes for Dave`s last comment, as it is because of their works and BOX that got me this far. Opened my minds eye to how to get moving with SubD and Vertex Tool, to make a possible Sketch Up USB drive. Thanks for the tools Thomas and the examples to manipulate them and explore all possible options Box and Cotty. Just a start⌠but pretty cool!!!
âŚPeaceâŚ
Excellent stuff, Cotty. Iâm sure Newton would be very flattered to have his balls modelled in SketchUp. 
@Cotty, I expect Alan is right on this. Perhaps next you can model James Wattâs balls. 
Nice work, too.
There is a burner but otherwise I cannot fathom how the thing is meant to work. Otherwise it is beautiful. Hot air?
Anssi
Yep. Found beautiful examples while googling. I have an old boyâs technology book from the 1920âs with instructions about building one, but not as cute as this.
Anssi
Yes, there are many different types out there. This one was modeled after images of this building kit.
I had a wood puzzle like that growing up⌠though mine was not nearly so colorful!
The chemistry is evolvingâŚ
Hold still cotty, I canât see them properly.
Inspired by Daves countless morning, evening, ⌠sketches:
a mid century secretary desk 
