Quote Originally Posted by Neale View Post
Something else that you need to tell Mach3 is if there is any gearing between the motor and the screw; if you have 1:2 gearing so that the screw turns at half the speed of the motor, then clearly you need twice as many steps sent to the motor to move the leadscrew nut by a given amount because the motor has to go round twice for every leadscrew turn. Again, you tell Mach3 about this gearing and it does the appropriate sums when it calculates numbers of step pulses to send.
Ok that's a good explination and correct but would just like to make this section more clear.?. . . .You don't actually tell Mach anything about gearing YOU need to factor in the gearing when you calculate the steps per. Mach has no place or setting for this gearing and infact knows nothing about any gearing.

Also after about 2000 Msteps your mostly gaining nothing other than a tiny bit smoother running motors which comes at a cost often not worth it due to the instabilty's that can come with it. To get any decent speeds for a router with high MS you'll need to raise the Kernal speed so this can and does make the system more unstable so for this reason alone your better keeping the MSteps down between 800-1600.