Remixed from Naus' original "Mini Repeating Crossbow" design, this new version has a couple new features and improvements!
BOW:
I was having trouble getting the notch to catch the rubber band while it was in its slot. In fact, I ended up breaking several rubber bands because it seems like the notch just ended up pinning the rubber band against the side of the wall where it sits and that prevented it from firing and actually started to wear away at the band until it broke.
To fix this, I modified the length of the notch (and also the length of the hole on the magazine) to that the notch should have no problem lifting the band up and our of the groove to fire.
MAGAZINE:
When I did get the machine to fire, the bolts that I was firing (Q-tips) wouldn't go anywhere because the barrel of the bow was conical-shaped in that the mouth of the crossbow was smaller than the opening at the other end. Also, I had a problem with getting the bolts to stay in the magazine when I rotated the crossbow. (Sidenote: It looks like Oliver_D also had this problem, and he made a remix that adds a top with slots to store extra bolts to the magazine! It's really cool, and is compatible with the new magazine as well – Try it out!)
To fix these issues, I added a groove down the length of the barrel to help the bolts stay straight and also to prevent jamming. Also, I widened the radius of the barrel to a uniform width, and I added the aforementioned lid to the MAGAZINE.stl file.
ARMS:
Like a few others, I was having some trouble with getting those pins to print so I ended up assembling this whole thing with Q-Tips and hot glue, so I thought it was fitting that I make the holes on the arms go all the way through so I can add my hot glue on the outside. So now this mini crossbow can be built with Q-Tips and fire them too!
Printer:
DaVinci XYZ 1.0 Pro
Rafts:
Doesn't Matter
Supports:
Yes
Resolution:
0.2mm
Infill:
10%
