John Domville wrote: > I need to find someone with the same 5000 series mill running the same > Sherline controller and see what his settings are.
No. You need to study your machine and do some basic arithmetic. How many full steps per rev? For 95% of the motors used on CNC machines, that is 200. I'm almost sure that is the case for Sherline. How many micro-steps per full-step? That depends on the drives. I don't have a Sherline drive, so I don't know, but I bet it is either 2, 4, 8, or 10. My first guess would be 8. How many revolutions of the motor per revolution of the screw? I believe Sherline directly connects the motor to the screw, so that would be 1. If there is a timing belt drive or something, count the teeth. How many turns of the screw per inch? If you can't measure one inch and count threads, how do you expect to do machinist work? When you have the answers to the above questions, it only takes basic arithmetic to figure out the scale, and the documentation explains the math. Stepconf will even do the math for you. For example, suppose you have: 200 full steps per rev 8 microsteps per full step 1 motor rev per screw rev 20 turns of the screw per inch to move the table 1 inch, you need: 20 turns of the screw, which is 20 turns of the motor, which is 20 * 200 = 4000 full steps, which is 4000 * 8 = 32000 microsteps so the scale is 32000 > The motors I have are 1/8 degree. Not likely. I bet it is 1.8 degrees, not 1/8 degrees. One-eighth of a degree would be 360 times 8 = 2880 steps per revolution, which is a really weird motor. One point eight degrees is 200 steps per revolution and pretty much the most common step motor made. Regards, John Kasunich ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
