Setting up stepper motor drivers

[JAZZCNC]

I'm not Welsh, I'm South African. but i did support the Welsh yesterday.

and I'm still grateful for your help.

It's ok I'd much prefer to sit watch that lion on your avitar than rubgy or football.!!. . . . Now motoX or any motosports then thats different story.!

[croy]

It's ok I'd much prefer to sit watch that lion on your avitar than rubgy or football.!!. . . . Now motoX or any motosports then thats different story.!

This screw still sounds very rough when it is running. any thoughts on Acceleration and Velocity

[JAZZCNC]

This screw still sounds very rough when it is running. any thoughts on Acceleration and Velocity

What settings are you set to at the minute.? both Acc and velocity please give micro steps drives set to as well.

[croy]

Hi,


Mach3 settings
Steps per is 800, velocity 200, acceleration 74

PM542 Controller settings
microstep 8 which is 1600 usetps/rev
4.2 Amps

What settings are you set to at the minute.? both Acc and velocity please give micro steps drives set to as well.

[JAZZCNC]

Have you tried upping both as 200 & 74 is very low.!! When you say they are rough sounding in what way do you mean.? could you take a video.

What Nm size motors.? how are they wired, Bi-polar parallel or series.? Are you absolutely sure you have wired the phase's correct.?

[JohnHaine]

Hi, it would be really interesting to know how you have fitted the leadscrew please? I have CNC'd my S7 with ordinary screws but accuracy isn't great and I want to fit ballscrews. The Z axis looks a bit of a challenge and it would be good to know how someone else has done it.

Thanks,

John.

[croy]

Hi, it would be really interesting to know how you have fitted the leadscrew please? I have CNC'd my S7 with ordinary screws but accuracy isn't great and I want to fit ballscrews. The Z axis looks a bit of a challenge and it would be good to know how someone else has done it.

Thanks,

John.

Hi John,

I bought C2 ground ballscrews, to replace leadscrew and cross slide, on ebay , then made a backing plate, that replaces the rack, to hold the ballscrew brackets.

I have since sold the lathe but the new owner did not want the CNC kit so if you are interested i have the ballscrews for both X & Z axis as well as the brackets to fit. the only thing still to do is to make the Ballnut carrier for the saddle.
regards Roy