LinuxCNC, Plasma, THC questions

Let us know how it goes, and do pay attention to wiring, even though you can not destroy proma thc, only and only if you wire the 200V line to the 5v input ! that is the only thing i did not test as it is irrational, i have literally tried to destroy one but nothing happened, even reversed the polarity on the power supply (will not turn on), on the 200V input (will show 0V even when plasma is on).
Regards,
Tom

Fan ??? am i spinning ???
Unfortunately i did not have the chance to try the CandCnc , or any other THC form other manufactures,.
I will be around in case you need any help.
Regards,
Tom

Greolt wrote:

Not in person. Seen it on the Mesa website. Info is a bit light on.

Did you find the link to the manual (under "Support Materials")
www.mesanet.com/pdf/analog/thcadman.pdf

It works in a different way to the up/down type, it is a way of getting an analogue voltage representing the arc voltage into LinuxCNC. Once it is there you have the option to run a PID loop on arc voltage, and to change the arc voltage setpoint in the software.

I need to add some info regarding THCad card.
I do not have one, but i would love to get my hands on both verrsions and see what they can do, from what i have read on this forum and thanks to BigJohn and PCW and others, i have no doubt it is beter than most of the THC on the market, it has direct feedback to the computer so it opens up a lot of posibilities to configure it however needed and tailored to the actual plasma/machine/material beeing cut to fine tune it to perfection.
Unfortunately i can not get my hands on one or 2 of them till i get to US next spring. I would prefer to use it on machines i build, but for adding THC to existing customer machines i liked the simplicity and reliability of Proma. And it works with HV and HV/HF pilot start plasma.
As for me personaly i have to get my grubby hands on a lot of MESA cards, i love the capabilities of them and they are very reliable from what i gathered reading here and on other forums, and support for them is awesome thanks to members of this forum. When looking at what the combination of Linuxcnc and MESA cards can do, there is very litle that can not be done as far as the automation of machinery goes, not just for routers or plasmas but for any kind/type/shape/function of machinery, no matter how complicated.
Regards
Tom

tommylight wrote:

Unfortunately i can not get my hands on one or 2 of them till i get to US next spring

There are EU stockists:
eusurplus.com/index.php?route=product/pr...3_296&product_id=612 (Portugal)
www.duzi.cz/shop_cnc/index.php?main_page=index&cPath=1 (Czech republic, but doesn't seem to list the THCAD)