Stephen Hayes of RoboGardens shares:
I do a lot of 3D printing as part of my prototyping work. One of the most annoying facets of 3D printing I had was filament jams. A printer will be working fine and then mysteriously start jamming. And since there are several possible reasons, it can be a pain to troubleshoot. In many cases, since these are only prototype parts, I could have rescued the print had I known about the problem.