G'day all.

My horizontal started playing up the other day and now won't co-operate at all. The z axis shudders the errors out on high amperage. I have turned the ballscrew by hand and it turns very easily. I figure it must be either The drive, the motor or the encoder. Has anyone had this issue before. I have a drive off a Multiplex 6200 t32/6 that i have parted out. I also have an encoder off the same machine but the numbers are illegible though looks the same as the one on the horizontal. Unfortunately the motors are different. All ideas appreciated.