geoffby
11-02-2022, 12:33 PM
Hi All.
I already posted this as a reply on another topic, but obviously wasn't the right thread to post on. so here it is.
I have a WM16 that was converted some 12 years or so ago by John Stevenson (did a great job!) - it was originally a Warco CNC, which was crap (it still had Acme screws and not the ball screws as I had been told - so accuracy was about as far out as the moon!). In the upgrade, John also fitted a 1:1 tooth belt drive from the motor to the gear spindle, so increased the main spindle speed to around 4300rpm max - I run mainly at 4000rpm and has run happily at this. I did have error problems with glitches in communication between the computer and the mill from time to time, but this was solved with the addition of SmoothStepper. Excellent.
I only use it for small model engineering hobby projects so is not in constant use, but it has done a few hundred hours of reliable running.
My problem now is that after experiencing a sudden build-up of chatter over a short period, I replaced all the bearings in the head and tightened up all the gib strips. Now I still have a vibration at high speed - removing the belt from the pulley and running the motor by itself, there is a vibration there, although not as much, but still there (it may be amplifying through the gear train) so need to replace the motor.
Does anyone know of a higher-speed motor (say 5000rpm) that would be a direct replacement for this one? Or will I have to go back to Warco for the motor?
Regards,
GeoffB
I already posted this as a reply on another topic, but obviously wasn't the right thread to post on. so here it is.
I have a WM16 that was converted some 12 years or so ago by John Stevenson (did a great job!) - it was originally a Warco CNC, which was crap (it still had Acme screws and not the ball screws as I had been told - so accuracy was about as far out as the moon!). In the upgrade, John also fitted a 1:1 tooth belt drive from the motor to the gear spindle, so increased the main spindle speed to around 4300rpm max - I run mainly at 4000rpm and has run happily at this. I did have error problems with glitches in communication between the computer and the mill from time to time, but this was solved with the addition of SmoothStepper. Excellent.
I only use it for small model engineering hobby projects so is not in constant use, but it has done a few hundred hours of reliable running.
My problem now is that after experiencing a sudden build-up of chatter over a short period, I replaced all the bearings in the head and tightened up all the gib strips. Now I still have a vibration at high speed - removing the belt from the pulley and running the motor by itself, there is a vibration there, although not as much, but still there (it may be amplifying through the gear train) so need to replace the motor.
Does anyone know of a higher-speed motor (say 5000rpm) that would be a direct replacement for this one? Or will I have to go back to Warco for the motor?
Regards,
GeoffB