I am building a Solsylva 10x9 router. I have the structural portion pretty much finished, though the axes may be a bit too tight so I may still have some work to do in that regard.

Right now I am having trouble getting my steppers to turn. I am using a 24V 6amp power supply, a Univelop TA8435-3.1.1 driver (yeah, I know. I bought it two years ago and didn't know better), and 3 Keling KL23H276-30-8A motors.

I am trying to run on EMC2. I am able to get the x and z axes to turn, but the settings I put in on the test don't make any sense. I was using a speed of .2 in/sec and acceleration of 1 in/sec/sec. I was testing the axes over a 2" test pattern. The two axes that worked made some weird sounds, almost like a siren or something. They made a grinding sound and then moved without making too much sound and started making the grinding sound again as the reached the end of travel. They also moved more than 2"?

The one axis that didn't move was demonstrating holding power when it wasn't supposed to be moving, but when it was supposed to be moving there was no movement or holding force. I was able to turn the screw by hand easily when it was supposed to be turning. It could be that a wire is loose or something. I thought it was strange that it didn't make any sound at all when it was supposed to be moving. They all kind of hiss when they are turned on and not moving.

Does anyone have any ideas how I can get this straightened out? And does anyone know what settings should be used for this driver board in EMC2? Unfortunately I purchased the driver board 2 years ago and the individual I purchased it from is no longer on Ebay.