That screen shot is from XP.
The reason I was asking for some PID tuning screen shots is that after the last time the machine was tuned by DynaTorch all 4-axes still felt a little rough. The guys at Dynatorch said the K-differential could go up to a maximum of 2000. So I stepped up to 2000 on the X master/slave and Y in increments of 100. This yielded pretty dramatic results in the edge-wobbling that I was getting, but the motors still felt rough. I've now tuned the X-axes to where they feel very smooth and make near-perfect cuts, I did this using methods outlined in online guides for manual PID tuning. The Kp is now up to 63 on all axes, and the Ki is down to 16, but the Y-axis still seems a little rough.
I'm cutting very intricate pieces out of 1/4" frequently and as the tuning has progressed it seems like I've narrowed the vibration to specific angles/curves. Additional tuning can push the chatter from one angle to another, so at one setting I'll get edge-chatter at 5 degrees-7 degrees, and at another tuning I'll get edge-chatter at 12-15 degrees, or on specific arcs, etc. but I can't seem to get the whole thing to cut uniformly.
I was hoping someone else might have done some very fine tuning and could share their results with me, although I doubt many have tampered with it as it is strongly recommended against doing so in the manual, a fact which caused me severe reluctance to alter the settings initially.  |