This is a fully 3D printed rubberband gun that shoots fully automatic. It was modeled in Inventor AutoCAD. This 3D model has more than 5000 dimensions to precisely show off the curves of the model of the P90.
Please go to contact info and send me an email if interested in STL files.
After printing the final design required a lot of sanding and filler due to only having one chance at printing this 50~60 hour print. We had 1 print failure but successfully recovered during the printing on the MakerBot Replicator that we used.
Here is the exploded diagram of all the parts on the P90.