My long mill has been idle for a couple of months. I finally got back to it this week and my x axis is malfunctioning. At low feed rates from 0 - 40 or 50 ipm, it does not move. The motor stutters back and forth as if it is stuck. At 60 - 120 ipm it moves well but sounds like it is working hard. Any feed rate higher than that it seems to run properly. When running programs it seems to run for a period of time then lose its x location and try to carry on in the wrong position. I have run the surfacing program using gsender successfully at 60 ipm with a 1/4” cutter on an area about 15 x 30” without actually cutting (or running the router) just in mid air.
I have readjusted the v wheels, backlash nut, and coupler. The axis moves very freely by turning the lead screw by hand. I have run out of ideas.
I have read a few threads in the forum, including the “x axis woes”. I have checked the connections and they seem accurate. It seems to me that the motor may not be running at the correct power - like it is not pushing as hard as it should.
The use of my machine has been very light so far including mostly work with a marker clamped to the router so students could write g code to write their name. So I don’t believe I have done anything that would have taxed the machine.
Thank you for any advice anyone can provide