This is a remix of the paper plane launcher by ThisFact. I didnt care for the abrupt stop at the end of his model and so I lengthened the trolly track. While I was at it I figured two bow arms are better than one and added a mirrored arm.
I recommend printing in PETG since springiness is what we are after here.
A peice of tape at the back of the paper plane helps to avoid deforming the paper on multiple launches.
Have Fun!!!