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For use in potato cannons
Scale to 0.5mm smaller than the inside diameter of your barrel (my barrel is 64mm so the spud is currently 63.5mm wide.
The heavier the projectile is the further it will fly.
I printed with 3 shells and 10% infill
This is a good how to video but there are many on youtube
I made a 6 foot cannon out of 70mm drain pipe and 120mm soil pipe that can shoot a tennis ball 300 meters on a good day
Be safe and have fun
Reusable spud gun ammo by Thingimijig is licensed under the Creative Commons - Attribution license.
So what's this mean?
We're sure Thingimijig would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!