Re: [Emc-users] Friction compensation (John Kasunich)

2008-11-27 Thread Ádám Novák
Hi, Thank you guys for all the replies and please, excuse me for all the mistakes I have made in my e-mail, I know how annoying these thing can be. Corrections to John: 1. You are right, I am using stepper system with metric units on EMC2. 2. I did make some mistakes (and I must have created a

Re: [Emc-users] Friction compensation

2008-11-26 Thread Jeff Epler
At present, emc2 doesn't have any friction compensation. However, there are several avenues you might go down to add it: in the motion controller, or as a HAL component. At first glance, it looks like the place to add this in the motion controller would be in the function presently known as

Re: [Emc-users] Friction compensation

2008-11-26 Thread Kenneth Lerman
For some reason, I think I recall feed forward as being useful for friction compensation. Does that make any sense? Ken Jeff Epler wrote: At present, emc2 doesn't have any friction compensation. However, there are several avenues you might go down to add it: in the motion controller, or

[Emc-users] Friction compensation

2008-11-25 Thread Ádám Novák
Hi, I am at the state of configuring our stepper driven milling machine and came across an interesting issue. I set up all the parameters needed to drive an axis including backlash compensation. Most important values are as follows: SCALE = 1000 BACKLASH = 0.004 Then when I hook up a digital