Centroid Community CNC Support Forum

You have only compensation dialed in between X 1.5 and X 13.5
So it will only compensate if you are moving in this range

Uwe

I understand. But I don't see any movement at all along any part of the X axis, even where the values are non-zero.
I also saw a mention in Keith's video that if an axis is not enabled one won't get VC working. I don't know how that might happen, but I tried his enter/exit MDI and that didn't help.
I had this working earlier when the feature was earlier in development and it worked great. Something is different now and I can't figure out what it is.

On my mill with 5.30 VC is working ok.

But I have full tab tables for XYZ.

One Glitch is that the prob cycles do not use the compensation, instead of X 0.000 Y 0.000 it is setting 0 to X 0.012 Y 0.008 if this is the compensation value for this coordinate.

Uwe

I found out what I was doing wrong. Only one complete table is necessary for adjustment of taper on my fourth axis.
I really like this feature, and it works quite well for what I need.

fyi. this feature is coming off beta for v5.40.0 as "Planar Compensation" which can be used to remove skew, bows, bumps and tapers
and will be in the Ultimate License level. any beta users that makes a video and post it on youtube on how this feature solved a mechanical problem for them will receive a complimentary license upgrade. as this version can correct a lot of machine tool mechanical issues saving time and money.

future: True full 3D volumetric tables are on the to do list for v5.50.0

For some reason I read this thread last night. Do I understand the feature correctly ....?

I can take a machine which isnt 'perfect' and effectively tune each axis to make small live adjustments to ensure that each axis is as perfect as possible?

This is very interesting if so. I have a 2 ton DIY Concrete Milling machine which I'm about to take CS Labs off from and install Centroid. It runs the Panasonic drives in Velocity mode, Ill move to Position Mode.

The machine is fairly well calibrated mechanically however its certainly not perfect mechanically. So this feature allows me to 'tune' the machine for some improvements?

For example, let's say that my Y axis isnt 100% straight. I assume then that some 'offsets' are tweaked in the X to make up for Y?

Thanks

It's a really useful feature. There are a bunch of informative videos in Keith's first post. The fourth video (Demo VC Video part 4 How to verify with CNC12 and pitfalls) shows that CNC12 adjusts the number of pulses the motor gets in the affected area to ensure it moves the corrected distance. It's a great way to remove taper when you've tried everything else but just can't get it perfect.

Where / how do I get access to try this feature? I'd be more than happy to do a Youtube video showing how its used on my concrete mill (Thor) which is now up and running and can do with some tweaking.

Thanks

Chaz wrote: ↑Thu Jul 24, 2025 3:46 am Where / how do I get access to try this feature? I'd be more than happy to do a Youtube video showing how its used on my concrete mill (Thor) which is now up and running and can do with some tweaking.

Thanks

follow the instructions pdf and videos on the first post.

Thanks. So its Ultimate license only?