I designed and made this rubber band blaster for my son after seeing all the types of rubber band guns shared here. I've also designed it so that it can be dissembled if needed to replace the internal rubber band if it should break. This has been a very fun project to work on, and my son totally loves it! Do let me know if you any suggestions to improve this as well.

For those who have already printed the original "Roller File" from the Bambu Wiki's Guide to Printing TPU, I created this simple small print as a holder attached to the top to the original model. Very easy print, auto tree support very easy to remove. I hope this helps someone.

I printed the file from Bambu wiki, then realized I needed a way to put my hygrometer so that I can read it properly. So I created 2 solutions of this. For those who have not yet printed the original "Roller File" from Bambu's wiki's guide to printing TPU, you can print this with hygrometer holder build in. For those who have already printed the original file, you can add a simple small print using my other model that has the holder attached to the top of the holder. I hope this helps someone!