BB Band Mine

New update as of 4/14!! Pocket version is only an 3x2x1" dimensions an fits in your magazine pouch, has a string latch or trigger latch and only takes four printed parts, a pen spring, trim nail, and of course the rubber band. Coming soon = extra fan file for wall mount applications!!!

They print reliably and smoothly on all the infill styles I've tried so far, and the whole thing only takes about two hours at 80mm/s and .2mm layers!!!!

Problem: airsoft claymores/mines/traps take batteries, fail to be sensitive enough to reliably trigger, and have limited areas of effectiveness,

Requirements:
1: Cannot cause any serious harm to wildlife/persons/ecology (wear eye pro)
2: Must reliably and quickly coat 15sqft or more area with BBs
3: Must be durable enough to be stepped on by 250lb+ players
4: Must be self contained, including renewable power source

Answer: Big Rubber Band and a Fan!
The first one I made was from a personal hand held fan set in a food bowl on