Mini Repeating Crossbow Remix

thingiverse

I've remixed the repeating crossbow by Naus (http://www.thingiverse.com/thing:1848665) to make it printable without supports. I've also tweaked the levers slightly and increased their angle to provide enough room for proper cocking. The pins have been thinned down to enable snap assembly, but some glue is recommended. To ensure reliability, I recommend wrapping a short bit of shrink tubing around the middle of the rubber band and heating it accordingly. I've also added an optional finger-holder feature that makes operation easier - this is entirely up to you. Print Settings: Printer: Zortrax m200 Rafts: Yes Supports: No Resolution: 0.2 mm Infill: Maximum Notes: Print the arrow holder vertically, with the muzzle facing the print plate. You won't need any supports! Post-Printing: To ensure consistent performance, take a thick rubber band about 7cm long and thread it through a small piece of shrink tubing. Keep the rubber band taut while heating the tubing until it tightens around the rubber band. Let it cool before releasing the rubber band. This will guarantee proper release and minimize wear on the rubber band. How I Designed This: I modified this design using Cinema 4d, rounding out overhangs to enable support-less printing and making some structural improvements along the way.