Hey /k/, so I have a bunch of old HDPE milk jugs and have been thinking about making some slingshots. I know that HDPE has a high density/strength ratio, that's why I chose it, but I am wondering if it is possible to mass produce things with it via sand-casting.
Does anyone have any experience melting HDPE? What safety precautions should I take? Personal experiences? Slingshot designs and the like? Please share.