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yes it is  counting at times it stop not stable.

rodw wrote:

tommylight wrote:

Open the "halshow" and check if the encoder is counting correctly.

THis is the step I told you to do earlier but you didn't

Yes you did Rod, i just reminded him.

tommylight wrote:

Open the "halshow" and check if the encoder is counting correctly.

THis is the step I told you to do earlier but you didn't

Wrong polarity on THCAD input, or wiring not correct from THCAD to Mesa 7i96S.
Open the "halshow" and check if the encoder is counting correctly.

       

 

# ---ARC VOLTAGE ENCODER---
net plasmac:arc-voltage-in <= [HMOT](CARD0).encoder.00.velocity
setp [HMOT](CARD0).encoder.00.counter-mode 1
setp [HMOT](CARD0).encoder.00.filter 1
setp [HMOT](CARD0).encoder.00.scale -1

this is how it look like in hal. my board is 7i96s

Once your encoder velocity is responding correctly, 
enter your thcad calibration data into the qtplasmac gui as per the instructions.

the light on the board  shows your wiring to the thcad is correct.
Next step is to confirm that it is being read correctly by the mesa encoder.
open halshow and find the encoder you are using. Does the velocity pin ove at all or does it stay static.

If its static, then this is probably missing from your hal file.I thought it was added by pncconf

Screenshot when cutting, not cutting, and settings page

     
Hi, I have a new plasma machine which I bought recently that has CNC ports and has 1:1 ratio divider and am using 1M ohms at each leg of + and - of the plasma machine which will give you 21:1 ratio but the THC doesn't move up and down but I can see the THCAD-10 LED light blinking fast when cutting and blink slowly when not cutting. i have attach my logs.

Hello, CNC Friends
So I spent a lot of money the last coupler of days. I have purchased a lot of stuff for a cnc table. hopefully I wasn't to cheap....I probably was but the price of things have gone way up .  So I went with the LattePanda. probably a bad choice, I was waiting for experts to join in but did not hear nothing. If you have better options for around the same price let me know, I could always return this. My original plan was with rack and pinion but after reading some of   tommylight   posts I decided to go with cog belt. I would like to use aluminum but the price is so high I will be making it all steel. My gantry with be made from 1.5"x4" tubing 1/8" thick. not as light as I would like it but it will have to do. My width of gantry will be around 62" with around 48" usable cutting with and around 60" cutting length. I will be using nema 23 motors 425oz for the x and y and 178oz for the z. I will ride on linear bearings HGR15s. For the Z axis i will use a double 10" draw slide as  tommylight  suggests and I will use a 8mm acme thread. I ordered the Mesa 7i96 board with THCAD2 boards. I am not sure if the THCAD2 would be the best but I contacted Mesa and that's what they recommended for the hypertherm powermax 85. So after looking, my plasma cutter doesn't have the built in voltage divider, so I will have to purchase that also to get it set up.  So I have screen recording of my 3d drawing.
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