Nerf Mastodon Battery Cover

thingiverse

I snagged an awesome Nerf Mastodon at a rock-bottom price a couple of years ago because its battery lid was nowhere to be found. I had been keeping my batteries in place with duct tape until now. When I recently broke out my trusty Nerf guns again, I decided it was time to 3D print a new battery cover – and thank goodness I've got a printer at my disposal. The screw holes on the printed lid are carefully crafted to be slightly undersized, which means when you take off the lid, the screw threads into the plastic cover, holding everything firmly in place.