pic: 4587 CAD progress

[Cash4587]

Originally Posted by bEdhEd

We've tried all kinds of springs, and surgical tubing has worked the best so far. The only thing we have to do is test how many launches will make the tubing wear out, and from that we'll know how often to replace them. Hopefully no more than once a competition.

We have done some math and ordered a few compression springs from mcmaster to try them out. We are using a lead screw to compress them quickly with a cim and a gearbox, then a release trigger to release the energy. If this doesn't work we will go straight to surgical tube. The way the mechanism works is in a sense there are 2 moving parts the spring is compressed against the plunger then the plunger is released with the compression spring energy being exerted on the plunger propelling it forward.