For PhillC regarding PlasmaC and Z axis stuff

phillc54 wrote:

Yeah, I can't see any thing wrong at the moment.

I think it is a good idea to set your G54 position at the Z minimum, that way your DRO always shows the relative height above the Z minimum.

I did not set G54 or any offsets. Maybe that removes the issue and that is a nice solution, and i will test that just after i get some coffee in me, as i have the test setup on the bench. And i do recall you mentioning to do a touch off. Back in a few.

phillc54 wrote:

Could you post an ini file that plays up and I will have a look.

Will do so, just doing some more tests.

Linuxcnc 2.9 build 1610 :
No touch off !
Z axis ini settings: -20mm

Config panel settings: Probe height = 20 , safe height = 30

Result = Error on probe test.
Same ini, config settings changed to: probe height = 30, safe height = 45
Result with 3mm thick material = no error.
Result with 10mm thick material = error on probe.
Same ini, config settings changed to: probe height = 40, safe height = 50
Result with 10mm thick material = no error, safe traverse height has been reduced.
-
Set the min_limit to 0 for the Z axis, go to slats to home, press home, error :

To recover, press F1, then again F1 and F2.
If by any chance it gets to 0 value on the Z axis during jogging, it will trip limit error, notify about fixing limits and restart, so not motion is possible, a restart of Linuxcnc is required.
-
With touch off just above the 3mm material, ini min_limit at 0, config probe height at 20 and safe height at 35 = works OK.
With touch off just above the 10mm material, ini min_limit at 0, config probe height at 20 and safe height at 35 = works OK.
Unfortunately i can not reproduce an error i got twice last night where is would stop all motion, error out ( do not recall the exact error ) and a restart of Linuxcnc would be required.

Attached is the config in zip form.

Thanks Tom, I will digest all that tomorrow, I am digesting wine at the moment...
A quick look at the ini shows different values for the axis and joint max limits, I don't know if that causes any problems.

phillc54 wrote:

I am digesting wine at the moment...

Enjoy it !

phillc54 wrote:

A quick look at the ini shows different values for the axis and joint max limits, I don't know if that causes any problems.

I am aware, it does not get to 60mm ever while testing.

Some similar issues here to the other thread today ..

When you had z minimum at -20 do you know where the torch was in relation to the slats when you jogged z fully down.

Set the min_limit to 0 for the Z axis, go to slats to home, press home, error :

Did you jog Z down for this.

I don't suppose you know what he original g54 offset was before you did the touchoff.

phillc54 wrote:

When you had z minimum at -20 do you know where the torch was in relation to the slats when you jogged z fully down.

Just a bit under the top of the slats, or table in this case, about 3mm.

phillc54 wrote:

Did you jog Z down for this.

Yes.

phillc54 wrote:

I don't suppose you know what he original g54 offset was before you did the touchoff.

No offset, machine 0 at G54 0.