Sainsmart Is Not So Smart

Or Sane

My Sainsmart CNC with the new Z-axis that’s probably breaking everything.

I’ve been messing around with a 3018 CNC machine for a while now. When I started out, I assumed owning it would be like owning a printer; you don’t need to know the innards because there’s a warranty and a company that wants to replace broken bits for you. Boy was I wrong.

I opted for the Sainsmart 3018 PROver, a slightly sturdier version of their 3018 CNC machine. I was a total…