Search:

Have you tried using G31 for probing? It would probably be something like "G31 Z-10." which would send the Z in the negative direction for 10 units and it will stop whenever the probe input is...

Do you have any of the required hardware for the touchoff? You'll need something like an ohmic sensor or floating torch to do it.

Does the scale have a way to retract it? It can't hang lower than the nozzle tip while you're cutting. Many people use floating heads with a sensor to detect when it moves, you can see this on mine...

I would have the control send the arc start (M3) command to your THC, have your THC locate the workpiece, set the pierce height, and fire the torch and when your THC receives the arc ok from the...

So I think I have implemented hysteresis incorrectly. In the current code I am using the hysteresis as an offset basically. If you set the target to 120 and hysteresis at 2, it will toggle the up...

Well the 0-255 value is a limitation of the code running on the Arduino and I haven't found a way to access that other than actually reading the PWM pin with hardware. I did find some libraries that...

So after some more reading, it doesn't appear that I can work directly with values (ex: tip voltage = 122.6) and I need to use analog in/pwm out which works as a 0-255 value in the Modbus. I should...

Has anyone been able to get the code from Arduino Modbus, Complete, Documented and free working on a Teensy? I've set it up on an Uno and anything set as an input shows up as a 1 on the variables...

I'm not sure I understand how/why a different interrupt would be helpful, there is code checking if a value is available from FreqCount before doing any of the math to find the torch voltage. I did...

I did more research and it doesn't look like I can add the SD card off the LCD without having a detrimental effect on the loop time at least for logging purposes. On the Teensy 3.1 the loop is...

I've found a few examples of modbus on arduino but it's all a bit over my head at the moment. Do you know of any examples with modbus on UCCNC? Most of what I find is for Mach.

KICAD and gerber files for the PCB have been added to Github, I haven't fixed the issue of the IDC socket hanging off the edge of the board yet but that's minor and it will still work.

That requires using modbus correct? I've been looking to learn modbus just for more inputs without buying another board but just haven't had the time.

Tonight I've done some more testing with the code and a Teensy LC which will also fit the PCB with no modification. The Teensy LC has a loop time of 15.5 microsecond using "Faster with LTO"...

I've added a new function to button hold. Holding the encoder button when not on ButtonPress 1 or 2 (not editing Tip Target or Hysteresis) will disable the voltage monitoring and outputs. It also...

I originally started doing that when I first built my table - https://www.cnczone.com/forums/stepper-motors-drives/151504-diy-torch-height-control.html

Now that this works I guess I could make...

I was originally using it with LinuxCNC but I moved away from that because I was struggling with Linux and it made using the Teensy very easy. I don't really have enough electronics knowledge to do...

I've looked at switching to FreqMeasure but even dividing at the max, its still too high to use due to the 1k max (THCAD output at F/128 = 935 low, 7238 high) -...

Right now it is checking the frequency every 10 milliseconds, you still think it would be better to divide it? I think the gate interval would need to be higher then because I have less digits in...

Servo delay is how long we are waiting after receiving arc ok before acting on up/down signals? Pierce delay is just how long after starting the arc that it waits before moving to cutting height...

Well it's not exactly lower voltages I'm concerned with. When I was doing the testing in the video it appeared the voltage was dropping down to around 90v after the pierce and move to initial height...

I'm using full frequency (undivided) with a 10 millisecond gate interval, library is here - https://www.pjrc.com/teensy/td_libs_FreqCount.html The THCAD is in the main control box which is about 10...

I've created a THC with LCD using a Teensy 3.1 that works with a Mesa THCAD card to send up/down outputs out to a control. It works by reading the undivided frequency from the THCAD, mapping the...

I'm looking to move my plasma table off of LinuxCNC due to my lack of understanding of Linux to something like Mach3/4 or another that is Windows based. I've been reading a lot about Mach and it...

That seems like the entirely wrong way to work a program. It should calculate the stepovers from finished geometry...I find it hard to believe that any CAM program would do stepovers like that.

You need a faster printer.

Why not 100% infill?

Why would the output show anything in Mach3 when grounding it? Does the G540 not pull the output to ground when activated and floats it/goes high when de-activated? Your post sounds like the...

Vendor found, thanks.

Free Web Hosting with PHP, MySQL and cPanel, No Ads is free and have been very good for me, worth checking out.