And another case for the Buspirate 3.5. It's for the Sparkfun version, so there are less designs available. This one's small, easy to print, ... Doesn't need screw, tape or glue. Just press and it fits (quite well) It might be a little bit too small but I didn't have any calipers or Internet when I designed it. Trim the edges of the buspirate and maybe scale up the parts and it should be ok. It's been a while since I made it and I don't need another one so I didn't change the source file...Made in Catia V5R20, from scratch with a ruler. Ask if you need the CATPart files