c2 smooth velocity profile

hello any news of this job?

github.com/synthetos/TinyG/wiki/Jerk-Con...led-Motion-Explained

I'm curios about this project they have jerk controlled motion.
can we learn about it and implement in Linuxcnc?

The tinyG 6th order bezier curves inspired me to the code in the branch github.com/rmu75/linuxcnc/tree/rs_6otp .

I cloned your repo but I fear it will be while before I can try it..

Just a warning, it does exceed acceleration limits while it should not, and the linuxcnc version it is based on is outdated. Do not run on something that moves.

I didn't pay attention and upgraded all my machines to ubuntu 20.04, now I'm a bit in a pickle regarding linuxcnc development... probably will need to setup a VM with debian buster.

If somebody wants to look at it, I think the first thing to do would be to rebase it onto recent master and look for acceleration excursions in chips.ngc. On the "theoretical" side, jogging (should be easy) and feed override (probably some tedious math involved) need to be figured out.

rmu wrote: I didn't pay attention and upgraded all my machines to ubuntu 20.04, now I'm a bit in a pickle regarding linuxcnc development... probably will need to setup a VM with debian buster.

forum.linuxcnc.org/9-installing-linuxcnc...-nearly-easy-install
This should work for Ubuntu 20.04 also, might want to give it a try.