Repeating 8-shot coin crossbow

thingiverse

https://youtu.be/FF_aFtmUEIk Coin Gun with 8-Shot Magazine: A DIY Project You can print your own coins, but I recommend using Eurocents as they have more weight. Other coins may also work. The power of the gun is easily adjustable by scaling the bow in the direction of firing in your slicer. You can make it stronger or weaker to suit your needs. In addition to the printed parts, you'll need the following materials: * 40cm thread * 4 screws: M3x8 or M3x10 or M3x12 (plastic screws are recommended, but machine screws may also work) * A weak spring with a diameter of approximately 15mm and a length of around 20mm (I made one myself by wrapping wire around a big pen) * A ballpoint pen spring for the trigger * A spring for the coin holder with a diameter of about 5mm and a length of approximately 30mm To ensure smooth sliding, print the carriage using ABS or ASA instead of PLA or PETG. I may modify the design to use rubber bands instead of springs and plug-in connections instead of screws. However, I'm not making any promises at this time.