LinuxCNC S-Curve Accelerations

I can not test that as it requires EtherCat hardware.

Hi Pcw,

The referred config file is a simulation for use with no hardware. 
I thought if this runs ok on your pc, maybe you have a idea why it will not run ok on real hardware.

i have it running with huge ferror values.





 

PCW wrote:

I can not test that as it requires EtherCat hardware.

I think you could just create a normal pncconf config for your hardware and set the ini file tpmod etc to use the scurve planner.
Once configured Linuxcnc does not care if its Ethercat or mesa.

I looked at the sim config an edited a mesa config to add the new TP, but it does
show major acceleration spikes (~500K)  lasting 1 servo period. I needed to set
large  following error limits  to avoid the spike triggering a following error.

Note that this is not hardware related but may have a relation to scaling so I can try again
by modifying the sim config to make sure everything else remains the same.
 

it worked on my Delta B3 Ethercat servos using CIA402/CSP config (see attachment).
i used linuxcnc-scurve-compat  from codeberg.

S-Curves would be nice.

Constant acceleration causes machine wobble.