BMW G20 3 Series key fob cover case
A two-part snap shell for the BMW G20, G30 and G05 key fob (2019 onward, the fob with the chrome band), protecting the glossy plastic from keys and coins. The fob measures about 78 by 43 by 14 mm, so the shell is built 0.3 mm larger with 1.2 mm walls, four 8 mm cut-outs for the lock, unlock, boot and panic buttons, a 30 by 6 mm slot for the emergency key blade release and a 5 mm lanyard eyelet. The halves join with a 1 mm lip and two 0.4 mm snap bumps. Print in TPU 95A for a grippy case or PETG for a hard one, both halves open side up.
Fob shapes change with every facelift, so a downloaded cover for the F30 fob will not close on a G20. In SpeakCAD you give the measured fob, preview the shell in the browser without paying, add a Comfort Access notch in the chat, and download the STL.
Create a two-half key fob shell for a fob 78 mm long, 43 mm wide and 14 mm thick with 0.3 mm clearance and 1.2 mm walls, four 8 mm round button openings, a 30 by 6 mm blade release slot, a 5 mm lanyard eyelet, a 1 mm mating lip and two 0.4 mm snap bumps per side.