On 13 September 2010 13:27, Spiderdab <77...@tiscali.it> wrote: > ooops.. maybe i've forgot to try to increase that value. so you think > that with a ferror of something like 20, i can reach lower accelerations > without errors?
I would expect so, but you would need to test it. > other question: why in EMC i can set every single joint acceleration, > and i can't set the world mode acceleration? or is it possible? The axis acceleration limits are to account for the mechanical limits of the actuators. They are actually _joint_ limits, you will have one per motor, despite only having a 3-axis cartesian space. In your case the physical acceleration limits are likely to be different depending on the string angles and hence the "apparent" inertia of the load. I would guess you need to test each motor with the string as close to horizontal as it will ever get. You can't set world-mode acceleration because the assumption is that in a machine tool you want to get to programmed speed as fast as the slowest-accelerating axis can manage. I think you are likely to be the first person ever to want to vary acceleration in world-space in EMC2. -- atp ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
