Another offset probing request

That was something thing i tried but then i noticed that my safe height is way above the z position the probe moves to while doing offset probing.
so i observed the offset probing routine and came to the conclusion that it moves to pierce height because z is not further adjusted after the offset probing move. 
 

I will have a look at this, I have a few things on at the moment so it may take a few (or more) days.

EDIT: What is your probe height value? The final Z probe should not begin until the X + Y offsets are reached. The Z will wait at probe height until the offsets are reached.
 

I have not explained my problem properly and i am very sorry for that ill try to elaborate. The probing itself is not my problem.

1.  XY movement to offset position meanwhile the Pneumatic Cylinder deploys.
2. Once XY Offset is reached Z Moves down from Probe Height which is 50mm above the Material in my case (Deployed cylinder is 25mm below the torch)
3. Cylinder makes contact with the material ohmic signal is received and the cylinder retracts.
Now however my problem starts.
4. XY is still in offset position Z moves down 23.5mm ( ohmic offset parameter minus cut height parameter) which results in the torch being in the offset position but 1.5mm above the material (somethimes where previous cuts have been and material is not lying flat on the bed (sometimes due to air pressure since the torch is still blowing air to cool the nozzle) all it takes is something sticking out 1.5mm.
5. XY Offsets are being reversed while the torch is 1.5mm above the sheet. While the offsets are being reversed Z moves up to pierce height which is 4mm but since this happens at the same time x and y moves the torch gradually moves up while being 1.5 to 4mm above the sheet.
This results in collisions if anything is in the path of the torch.

So my question was if there is a possibility to reverse the offsets first and then move the torch down to pierce height ? 
My Offsets are about 10mm Y Position and 45mm X which is quite large but this is because of my Torch holder being 5mm thick and my pneumatic cylinder is a square of 40mm by 40mm.

I was thinking of reconstructing the probe so that it fires a ring down around the torch but i build my current probe head like a nozzle which also blows out air and cleans the water from the table around the probe and i would very much like to keep it that way as i had many problems with rusty water before. 

I am more than happy that you are willing to look at my problem. Currently i am watching every cut of the machine to stop it if any material sticks out. So time is not that relevant for me. 

 

Deveraux wrote:

So my question was if there is a possibility to reverse the offsets first and then move the torch down to pierce height ? 
My Offsets are about 10mm Y Position and 45mm X which is quite large but this is because of my Torch holder being 5mm thick and my pneumatic cylinder is a square of 40mm by 40mm.

I am sure that we can come up with something. The original reason for the way it operates is to make probing time as short as possible. We could probably make it an option via a halpin.

That would be great. 
I figured it was implemented that way because of efficiency as offset probing does add quite some time to a sheet with many pierce movements. But all in all it was a game changer for my machine in terms of reliability and consistency of the probing thus resulting in better cut Quality.
Once this last error is resolved i can begin to finetune everything (z height, probe height) to reduce cutting time further.
Anyways thanks a lot yet again.

 

If you are game to test this out before I push it, attached is a new plasmac.comp file.
You will need to rename the existing component then install the new one.
Open a terminal and assuming the new plasmac.comp is in ~/Downloads:
If you are missing halcompile then you will need to install the dev package:

There is an additional hal pin named plasmac.offset-probe-mode, the default value is 0 which keeps the probing as is, setting it to 1 should inhibit Z axis motion until the probe offsets are cleared.
Hopefully this will work for you.