Rubberband casting mold
thingiverse
This mold allows you to create a perfect rubber band for indoor ultralight free flight. You can also use it on a desk crossbow. You don't have to use a demolding product. Print it without support. You can modify as you want. Link to the video: https://www.youtube.com/watch?v=SvnzCKYWGWE Link to a data bank with some much models of indoor ultralight planes : https://indoornewsandviews.com/downloads/
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With this file you will be able to print Rubberband casting mold with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Rubberband casting mold.