I am looking to use an arduino nano. as a THC for my cnc plasma .. i see there are a few guys that did so for use with mach3 but i do not want to set it up as just having a torch up torch down signal.instead i want it to interpret the torch voltage and compare it to the set voltage then output step and dir. to be able to control the pololu stepper drivers?I would like to set it up where it i can turn the thc off and on via g code and keep it as simple as possible .. i would like to use a 1602 or 2004 lcd to show the set voltage and the actual torch voltage ..and just use up and down buttons to set the voltage .. the only other thing i can thing i need to add is a high voltage off incase the torch move over an area that has already been cut..Which will cause the torch voltage to go p quickly making the thc cause the torch to dive?I would like have an simple setting of say 135 volts for the off voltage of the thc..Basically i am wondering if anyone else has done something similar and if you are willing to share your progress with me ..anything that could make it easier for me to get to a finished product would be much appreciated....
Your long rambling paragraph seems disconnected from the title of your Post. You don't mention stepper drivers anywhere in your Post
The choice of stepper driver depends on the stepper motor and you need to post a link to the motor datasheet if you want advice about a suitable driver. You may get some useful info in Stepper Motor Basics and in this Simple Stepper Program
For the rest of your Post, I don't see any specific question apart from wondering if someone has done something similar - which I have not, I don't even know what a "THC" is.
Every complex project is a collection of separate pieces working together as illustrated in Planning and Implementing a Program
...R
I mentioned stepper drivers twice..First in the title of the post then i said i wanted to use step and dir. to control the stepper driver..Thc is a torch height controller for use on a cnc plasma table..A auto torch height controller senses the voltage from the electrode to the work piece then compares it to the set voltage and makes adjustments to the z axis to maintain proper cut height...I am not looking for advise on which stepper driver to use .. I know which one i am using already..I have been using a Proma Sd thc with the machines right now but i am unhappy with the durablity and cost of said unit..Every time one fails it cost me 140 bucks to send it back to poland under warranty..I am looking for help with the firmware-code i will be using on the arduino nano..I realize the code with be alot of copy and pasting to get it to do what i want..Sorry if the intro paragragh seemed like it jumped around i was trying to lay out what i am looking to use the nano to do and how it differs from what others have done.
I had hoped that my words "long rambling paragraph" might have led you to format your next post more clearly - like this for example
I mentioned stepper drivers twice..First in the title of the post then i said i wanted to use step and dir. to control the stepper driver..
Thc is a torch height controller for use on a cnc plasma table..
A auto torch height controller senses the voltage from the electrode to the work piece then compares it to the set voltage and makes adjustments to the z axis to maintain proper cut height...
I am not looking for advise on which stepper driver to use .. I know which one i am using already..
I have been using a Proma Sd thc with the machines right now but i am unhappy with the durablity and cost of said unit..Every time one fails it cost me 140 bucks to send it back to poland under warranty..
I am looking for help with the firmware-code i will be using on the arduino nano..I realize the code with be alot of copy and pasting to get it to do what i want..
Sorry if the intro paragragh seemed like it jumped around i was trying to lay out what i am looking to use the nano to do and how it differs from what others have done.
When I lay it out like that I can easily see that you are looking for help with code - presumably to detect the electrode voltage and to use that to control the stepper motor.
How do you detect the electrode voltage and what is the range of voltage between the extremes of the electrode position?
What stepper motor driver are you using - post a link to its datasheet.
...R
I'm looking for the same, all procjets I saw are basically for to use in Mach3 (up and down output), but we need dir and steep output to use with arduino (grbl plasma cutter), no luck yet.
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