Partisan Booby Trap/Bomb marker for Bolt Action

cults3d

I'm testing out a new booby trap for Bolt Action, and I've created a quick bomb design using Sketchup. It prints perfectly without any supports, which is great news. The base of the model measures 25mm in diameter, although the official rules call for a 20mm base - no problem there, as it's easy to scale it down if needed. Still, I'm not sure how small it can be printed safely.