PID settings for THC

What are good starting settings for the THC PID and how does one go about to test these to make sure they are right?

The default works fine for me, tested with an 8Cm slope at 50Cm cut, works perfectly up and down.

I did a test cut today and it started off fine but the torch deemed to creep upwards after a while.I thought that it might be the THC PID settings. I am also using the default settings at the moment.

Check the LED's on the lower left side, if the "whatever lock" are active = the THC is not following the material.
That can be due to lowered velocity or some other settings that inhibit THC. There are several locks there, that is why i wrote whatever locks.

tommylight wrote: The default works fine for me, tested with an 8Cm slope at 50Cm cut, works perfectly up and down.

+1

phillc54 wrote:

tommylight wrote: The default works fine for me, tested with an 8Cm slope at 50Cm cut, works perfectly up and down.

+1

This is a first test on a machine that I was helping to set up.

mariusl wrote: I did a test cut today and it started off fine but the torch deemed to creep upwards after a while.I thought that it might be the THC PID settings. I am also using the default settings at the moment.

Another +1 here but check the THC is enabled and not set to auto on the run panel. I have been caught. I like to watch the Z axis shaft to make sure it is moving when starting a cutting session.

rodw wrote: Another +1 here but check the THC is enabled and not set to auto on the run panel. I have been caught. I like to watch the Z axis shaft to make sure it is moving when starting a cutting session.

Why would it not work in Auto?

phillc54 wrote:

rodw wrote: Another +1 here but check the THC is enabled and not set to auto on the run panel. I have been caught. I like to watch the Z axis shaft to make sure it is moving when starting a cutting session.

Why would it not work in Auto?

Probably because its not set in my tools. Maybe my tools predated the setting, I don't know. I just reviewed the docs before my post so I now know why I've had this issue.

I know its too late but to me THC does not have anything to do with the materials entity in terms of data entity relationships. It belongs to the machine. It would be much better for the THC to be enabled by default (eg the check box on the materials disabled THC). I have no idea why you would want to disable THC for a specific material. Its more likely to be for a specific job.

Because when it was originally done I used Sheetcam tool files from yourself and John any THC was part of those files.