Got the machine together and started the break in program. The machine would stall about 2 inches away from max travel on the y axis towards the y axis motor end then bang off the bolts at the bearing block end. I stopped the program and jog the machine back and forth. The y leadscrew seemed bent so I disassembled and rolled the leadscrew on a flat surface. Sure enough it was. So I carefully straightened it out and reinstalled it. Ran the program again and same issue. I then reset the y leadnut closer to the y axis motor. This with a little oil seemed to help. Ran the break in program a few times with with little to no issues. Some bearings on x axis rail were not in contact with the rail. Adjusted those and continued the program. Did some test cuts and line test for the material I had on the machine. Got the speed and amperage disabled in. Good to go!
Did several small cuts at machine coordinates less then y 12. Everything ran great! First cut that ran about 2-3 inches from max y travel seemed to skip steps. Reinspected the y lead screw and the lead screw seems to run eccentric to the motor coupling. @langmuir-daniel here comes the questions.
Would rotating the leadscrew some amount of degrees to the coupling then retighing the set screws solve this?
Or is it possible for the coupling bore is slightly bigger then the leadscrew diameter and the set screws push the leadscrew to one side of the coupling?
Would the leadscrew being slightly eccentric cause that much bind to stall the motor?
I remember reading a post about the leadnut mount being slightly tilted on a few machines. Has that issue been eliminated?
Looking for a little direction on diagnosing the issue. Thanks in advance.