Yes there is a Z axis.
The sequence is that it drops down to sense the height of the surface by seeing the drive motor current rise as it stalls, raises to .150”, initiates a pilot arc, then lowers to the .060” cut height. The tricky timing is in the delay from when it lowers to cut height to make the pierce until it starts the actual cut, as well as the lead in distance and angle to the cut line.
The actual cutting distance is maintained by a closed loop that monitors the cutting voltage and drives the Z axis. If the cut height increases,so does the voltage required to maintain the arc, and conversely if the voltage dips, it raises the torch. This lets it compensate for a surface that isn’t level.
I am getting a decent handle on it, changing parameters and seeing the result has been a big help. Much less frustration than trying to learn on a part that I need.
You explained ohmic sensing very well. When me and my student worker were fighting it on the torchmate, we ended up running a 2nd ground wire to clamp to the material, and that fixed it because the table's ground was intermittent. Torchmate has pierce height setting, along with matl thickness, and feed adjustments, but nothing beats practice and experience.
I have not cut anything thicker than 1/4" so far, but we have a hypertherm 125, so supposedly we can.
Question, IIRC your table is stainless, but are the slats stainless?
David, Cody was back to normal after the seizure. He has had about one a year for the last few years. Not sure what it is causing it. Two different vets have examined him and done testing
A buddy gives his 3 yo male golden vitamin B1 to keep seizures to a minimum. Says it is working great for months now.
All of the hardware is presently black, so I’ve been “directed” to make it black. Brass did cross my mind, it’s a lot easier to work with, and I don’t have to get it powder coated.
Ask for a brass kitchen pass.
Just woke up my lack of sleep is catching up to me. Not sure of forecast but by second week of February cold comes back. We are dry again.
Prayers for LS and wife all others silent or spoken our Country
Prayers for Bupps, Holly, Ted and Dona.
Need to act upon it.
My bad experience, still dealing with it, my FIL was a pack rat. Now his kids are dealing with a lifetime of boats and cars some not titled at all. The stress is undeniable. If he had acted upon it, the sales, he would have benefited and his kids not be tormented by the bureaucracy involved in closing out his wishes.
Good luck, hope it works out for you all.
My mom is still "kicking" and can be just as honery from her bed as normal....but her home is full of "sentimental" (to her) keepsakes that are pretty much worthless. I'm going to be dealing with that probably in the not too distant future.
Talked with lawyer today. She said if there are no liens against mom's home, she can do a ladybird claim and it will stay out of probate. (thanks Don).
Crummy weather for the next few days, cool and rainy. Then this weekend is forecast for sun and 70F. Maybe time to ride my motorcycle!