Originally Posted by
caryk
Wish I had found CNCZone before I purchased!!!
After assembling we started with G28, and the "Z" plunged into the bed. Bad encoder, this damaged the "Z" drive nut by pulling the s.h.c.s. thru the plastic flange. Cut parts for a day when the "X" took off and slammed into the solid stop of the gantry, bending the "X" drive shaft, bad encoder. This time it took a couple days of leaving messages, our frustration set in, we made a new shaft and wedged a plastic shim under the encoder cat five connection and it worked. After replacing parts we managed about forty hours of machining, when the "Z" plunged into the work piece and the servo controller started smoking. The "Z" servo card blew.
After leaving messages for several days, Practical responed with a new servo card and stating they have had problems with servo cards. Machine worked well for a few days when the "Z" plunged into work piece. Stripped "Z" nut! It took two weeks to recieve the part and fifteen minutes to replace. The machine worked for three hours when the "Z" plunged into the worked piece. Hit the e-stop in wincnc and turned off the servo controller. Seconds later, turned on the servo controller and "puff", blew all three servo cards.
After leaving three and four messages a day, five days later, I got through. Sent the controller back, their responce, Practical said the ground shorted due to external power surge or power source. Our machine is isolated from any other equipment or power source. Anyway, to make this long story short, Ive been down four weeks and still waiting for my controller to be returned.
CaryK