I'm 48 minutes (my local time) late for my thing-a-day! Finally, here it is.
It's a flat (boring?) oval (can be perfectly circular too) open (of course, you can close it) asimetrical (thinner at the open side) bracelet (or ring if you make it smaller).
This design is intended to be an envelope to be boolean used (intersection) with other textured designs, we'll see...
This one is 60mm x 50mm (inside dimensions) and a little bit more than 29mm tall.
Thickness varies because is asimetrical. It should be a maximum of 3.6mm and a minimum of 2.1mm.
The opening has been set to 20mm, you can change all this, and more, in the OpenSCAD script parameters.
Use it to carve logos, textures, just write something on it or you can also print it as it is.
I've been mercy less with booleans and I go quite crazy with the resolution... it may take time to compile (decreasing the resolution by increasing "res" parameter speeds up the whole thing)