help needed

[studysession]

Hi -

I am not new to CNC but I am new to setting up some of these settings in Mach3. How do I calculate steps per inch in Mach3? I am not getting accurate when I use the setup wizard thing.

I have a DIY cnc machine

1/2" 10 tpi ACME screw rods.
My board is set to FULL step
Direct drive
Kelling KL23H276 bipolar stepper motor
NEMA 23
Dual Shaft Front shaft=1/4" x 7/8" Back shaft= 1/4" x 5/8"
200 steps per revolution
1.8 degrees per step
No. of wires=8
Bipolar series Volts=3.86, Amps=2.1, Ohms=1.84, Holding torque=2.0 Nm. 0r 282 oz-in
Bipolar parallel Volts=1.93, Amps=4.2, Ohms=.0.46 Holding torque= 2.0 Nm. or 282 oz-in


THANKS

[awerby]

Multiply your threads per inch (10) times the microstepping factor (1) times the number of steps per revolution of the motor (200) and you get 2000 steps per inch. Try that, then tell the machine to move an inch and see what happens. (Remember to "save axis settings" or it won't remember what you put in the box...)

Andrew Werby
ComputerSculpture.com — Home Page for Discount Hardware & Software

[studysession]

Thanks!!