problem with HIGH-Z S-1000 CNC ROUTER AND CNC ENGRAVER WITH TRAPEZIUM SPINDLES

[howser37]

Also it just occurred to me that you should also check the squareness of your Y axis to the X axis, as if they are not square this can also lead to stalling steppers, and as you said you have been moving the screws by hand then this is a good possibility to check.

An easy way to do this is to very slowly jog your Gantry to its end stops on the X and they should both touch at the same time on either side, if one side has touched and there is a gap on the other side then turn your steppers off and square it up by turning the screw manually, obviously this will only be accurate to a certain degree but worth a check to start.

[komatias]

Hi,
the strange noise is due to the fact that your stepper motors are stalling.

The stalling can occur if your powersupply or drivers are not supplying enough current to the motors or if you have set your accelerations and rapid speed too high. Not sure what software you are using so best look through your settings yourself.

Trapezoidal screws can be backdriven, as howser says, if their pitch is long enough. Under operation, the stepper motors are energised which applies a holding torque. That is what stops the axes moving when you are cutting. So yes it is normal.

Regards