Miniature Trampoline [Functional] [Dual Material]

thingiverse

I designed a proof-of-concept, but never had the chance to bring it to life through printing. I came up with the idea of using two different materials in a single print with a dual-nozzle printer. Unfortunately, when I attempted to print this design, I encountered major stringing issues with ninjaflex and as I printed the layers of PLA were getting ruined with leaking from the other nozzle. The bouncy fabric is meant to be printed out of ninjaflex, while the frame is intended for a rigid material like PLA or ABS. It's a print-in-place part, so no assembly is required, and no supports are necessary either. Simply import both parts into your slicer and they should line up with one another by default. I printed test samples of the bouncy fabric to determine the optimal thickness, and I found 0.6mm to be the best balance between bounce and strength. Two layers for the bouncy fabric work just fine. Give it a try, and hopefully someone more skilled than me can bring this design to life through printing!