[Kammo]

Hello, I have gotten into this wonderful world of CNC and decided to build my own. I got everything set up in Mach3, hooked everything up and after a few days of figuring everything out I have been milling out thin plywood and foam board with no problems. (I build RC planes and copters) Everything has been working perfect and today I turn on the computer, power up the TB6560 and zero my X, zero my Y and hit the up down for Z and nothing. I used it last night and all was fine. I must tell you this is my second TB6560 board. The first one did the exact same thing, just stopped on the Z. When that happened the first time I contacted the seller and they sent me a new board. Plugged it in and away we went, till now.
I have tested the Z motor in the X & Y plug ins on the same board and it works fine. (Not the motor, connections or power)
My questions are
1. is there a reset or something I can do to this board that may fix it?
2. is the TB6600 better to use?
3. what would cause this to happen twice? (first board ran about 6 jobs, this board ran about 20 jobs)
4. should I go to 3 separate driver boards instead of 1 for all three?

Your help would be much appreciated!
Thank you!

[awerby]

Big surprise. Time to send it back, get another one, do another six jobs, blow it up, repeat...

[H500]

Self destructing for no reason is the normal behavior for most tb6560 boards. The 6600 is much better, but might require a few mods for best performance.