RE: [CAD_CAM_EDM_DRO] EMC w/ steppers&xylotex

> -----Original Message-----
> One more question though: is there a way to
> limit the max speed in the software? As it sits now I need to run
> the "axis speed" at 1 and the "feed overide" at 15 so the motors do
> not stall. Or is there a way to establish a ramp up to speed as it
> seems the motors start out at full speed (not much of a ramp if any).
> I am not looking for a super fast production machine "YET".
> Thanks Again Regards, Ken

You set the MAX_VELOCITY in all 3 axis sections and in the TRAJ section.
The TRAJ one should be about 1.5X the largest in the individual axis
sections. Acceleration is controlled by the DEFAULT_ACCELERATION setting
in the TRAJ section. I was once told by one of the original NIST
developers that the MAX_ACCELERATION parameter is not used in machining
application so to just set it to the same value as the default.

Remember units are units/second so if you are in inch mode a setting of
1 in MAX_VELOCITY will give you 1 inch/second or 60 ipm. I believe the
default acceleration setting when you install is 20 and in my experience
steppers usually end up in the 1 - 5 range.

Tim
[Denver, CO]
Sherline products at Deep Discount
Mach1 & DeskCNC with credit card ordering
www.KTMarketing.com/Sherline