Manganese aluminum bronze electron-beam 3D printing trial

Better-wetting alloy, deposited in circles with electron beam. Shows acceleration humps at scan reversals (Newton's laws) and residual-stress problems despite better surface-tension balance.

This one I think I may have passed around. It's actually a pretty good deposit. You'll see some little humps on either end because you scan this way and then back that way, and there's a delay as you go from a finite velocity in one direction and have to accelerate in the other. So you build up a little more material on each end, and that's just Isaac Newton — you can't make an infinite change in speed.