DIY material testing machine Inspired by some profesional tesing videos like ( https://www.youtube.com/watch?v=tpGhqQvftAo ) I was thinking it should be possible to create something simmilar for testing 3D printed material. I have a very simple goal, mainly interested in relative strength between multiple test pieces. Like to be able to answer f.e. which print temperature gives the best connection between layers. More info and results; http://umforum.ultimaker.com/index.php?/topic/6117-diy-material-testing-machine/The swing is a simple piece of tube, with a piece of iron to cut through the test material. The swing is hanging in 2 bearings. The pointing mechanism is a very simple design, i think the rubberband idea needs some improvement...