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I have a Mesa 7i96s card with a THCAD - 10. Do I need a voltage divider for this? I purchased two resistors - 2.4M OHM 1/2W 1% AXIA ( digikey ) as well as a 50:1 voltage divider ( CNCpc ). Do I need both? 

it's been a good little tool for odds and ends. i have mostly used it for guards and covers. i had a thought about thread inserts and have seen the brass ones you heat and press into your parts but thought you might be able to infill around your holes and run a tap into it then use a Heli coil insert. the cheap one's work just as good as the Heli coil brand. i thought it might be a little more cost effective than the ones you press in with heat.

i might try this out on a housing for the THCAD so I can mount it to the plasma cutter when i get that far

HelloI have a plasma cutter runing on mesa 7i76e / thcad10 / linuxcnc 2.8.My Problem:As you can see on the attached picture (left cut) it starts really good but after about 100mm the THC starts to move up and down the Z Axis. The move distance of the Z Axis gets more and more up to 10mm at the end. Is there an another setting as in the Config Penel Arc - Height Per Volt? (currently set to 0.05mm)So I really don't know how to fix this and which settings could be responsible for this behaveHope that you know the reason for that and I would really appreciate a hint how to fix that.Thanks in advance for you replay.The settings:Config Panel THCDelay:1Threshold(V):1PID P GAIN(Speed):10VAD Threshold(%):90Void Sense Override(%):100PID I Gain: 0PID D Gain:0Run Panel THCAutoUse Auto Volts: (ticked)Velovity Anti Sive Enable (VAD): (ticked)Void Sense Enable: (ticked) 

Id like to reduce the amount of slag I'm getting on tight corners, I've searched the forum for settings on the THCAD2 and the 7i96s and really haven't found anything related to it. longer cuts and or curves come out perfect its just tight cutbacks it leaves a pile of slag. I'm cutting 12ga Steel and reduced my speed from 120 to 100 for the 12ga settings. So I'm not sure if I'm getting the height control locking at at the right time or its something else. my air quality is consistent and I run a refrigerated drier so I know my air is clean. I did change the Post processor to one of the Updated ones here called Plasmac local materials for setting the material from plasmac instead of sheetcam. it improved quite a few items during cuts. Maybe my motors and drivers aren't tuned correctly? open to anything to reduce the amount of cleanup I have to do after the cuts lol. and i might have left out some speciffics needed so ask away.

So, after the success of my first plasma CNC, I thought it time to move her on to a new home, and build a new one. Bigger, faster, more powah!!! 

Im starting with a MESA 7i96 with 2x THCAD10 for volts and ohmic sensing. Closed loop stepper motors will be Nema 34 running 60v. Reduction gearboxes onto helical gears. The z axis will bolt the hypertherm xp45 machine torch and an air scribe. I’ll use an air actuator to drive the scribe to the required height. Everything is running on aluminium extrusion and linear rails. I have prefer up a water bed that is 1500x3000. Giving me adequate space to load up a full sheet. 

I’ll get some pics and links to the parts used as I go along. 

lots of new things for me to learn with this build so no doubt I’ll be calling on the brains trust for guidance again and to help me when I get myself stuck. 

cheers