LinuxCNC S-Curve Accelerations

Sure, we're glad to get all the help we can get, this is just in the idea phase for now, so even just useful input would be nice, YangYang is not on board yet, it is just my idea at the moment, but I am not forcing it down anyone's throat, this has to be scrutinized by who understands more than me, or have different point of view on things, Grotius YangYang Robert ihavenofish, really I welcome all input, it should not be a fight, the correct solution I hope will arise from the collective experience of the community, and who is willing to share it, for the benefit of all.

interesting discussion.
I am of the opinion that the limits of jerk, acceleration and speed should always be adhered to (load on the mechanics...).
If I want a higher or even speed, I have to design the milling path in such a way that a higher or even speed is achieved while taking into account the limits of jerk and acceleration (G64 Pxx, G64.1 for ...).
Inadequacies in the milling path should not be compensated for by violations of the limits of jerk and acceleration.

I would like the discussion to go more towards improving the S-Cutve

@Vegko
I changed your NC code a little (corner radius 0)

grandixximo wrote:

@Aciera
Yes, I think Robert and YangYang will have much to discuss. I will probably mostly be on the sidelines, help YangYang with the English mostly, I think he'll do better than he thinks.

@ihavenofish
spikes you see on the scope are ddt of ddt of ddt, planner_type 1 has been running on real machines, it is not as expetimental as you might think, far from perfect I can agree, I can understand that you don't want to put your hardware on the line.
Not to worry about, I have hardware, you can see at www.aitalmac.com
Anyhow thank you for your inputs, have give me lots to think about!

Videos of it running on a stone bridge saw please!

We all want to see pretty moving pictures. mmmm.


 

You can find more on the youtube channel

grandixximo wrote:

You can find more on the youtube channel

Oooh. So this machine runs linuxcnc with jerk limiting?
 

Yes, most machines you see on the website do, the one I have most problems with is the sawjets, because of the huge kinematics pivot.
The only issue I found that needs fixing with the latest code, is when I do codes to mill down the table, zigzag style, YangYang will take a look next week, he keeps patching that up. And then it comes back again...