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General Mach Discussion / Steppers have no torque.
« on: October 05, 2007, 03:06:35 AM »
Hello all;
I have a Taig cnc mill , and have been running the demo of Mach 3 for a while. I use a Xylotec board and have Oreintal motor steppers. The motors are 200 steps per rev, and on the Taig 20tpi leadscrew. I have the board set for full step and when I do a calibrate test Mach tills me 32,000 pulses for 1" of movement. Is this right ? It seems way to fast. I have the motors tuned for 14 inch per min and mid settig for accel. I f I run them faster they stall and hum. I can grab the coupling on the stepper and stall it with very light force. I have had the motors for years in a box , cuold they be bad ? I got some specs years ago and they were 180 in/oz motors. Is this to weak for mill ? I love to make stuff on the cnc , but its not realiable, it stalls to much. I have noticed it runs better withstock code from the Mach software ( wizards ) But is actting up with Mastercam G-code. It always stalls at start of program. If I bypass some start settings and get to the meat of the code it works better. I have a 1ghz amd desktop with 512 meg ram, running Windows 2000.
Thanks Mitch .........................
I have a Taig cnc mill , and have been running the demo of Mach 3 for a while. I use a Xylotec board and have Oreintal motor steppers. The motors are 200 steps per rev, and on the Taig 20tpi leadscrew. I have the board set for full step and when I do a calibrate test Mach tills me 32,000 pulses for 1" of movement. Is this right ? It seems way to fast. I have the motors tuned for 14 inch per min and mid settig for accel. I f I run them faster they stall and hum. I can grab the coupling on the stepper and stall it with very light force. I have had the motors for years in a box , cuold they be bad ? I got some specs years ago and they were 180 in/oz motors. Is this to weak for mill ? I love to make stuff on the cnc , but its not realiable, it stalls to much. I have noticed it runs better withstock code from the Mach software ( wizards ) But is actting up with Mastercam G-code. It always stalls at start of program. If I bypass some start settings and get to the meat of the code it works better. I have a 1ghz amd desktop with 512 meg ram, running Windows 2000.
Thanks Mitch .........................