This is the improved version of my old crossbow design, it also uses the elasticity of the 3D-printed limbs to fire bolts.
The handle has a nice grip, which improves the aiming a lot. Trigger is one-piece without the use of a spring of a pen.
Parts include 3D printed parts, some screws, and nylon fishing line.
Screws required are shown in the picture. 12mm screws are for the trigger axle and the arrow holder, 8( or 9) for others.
The original .skp file for SketchUp is available.
Shooting footage: https://youtu.be/ZgD4MhCwSSY
Printer Brand:
MakerBot
Printer:
Rafts:
Yes
Supports:
No
Resolution:
0.2
Infill:
20%
Notes:
Can be printed with PLA.
Lay down the hold, trigger and handle, all the parts do not need supports.
Trim the trigger tip that pushes the string if it stuck at pull position.
Print the two arms separately with the same machine code. The difference in infill patterns might cause different draw characteristics on the arms if printed together at once.
