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I gave this little project a try as can be seen in the forum post linked below:

forum.linuxcnc.org/12-milling/50559-opti...sion?start=90#334591

I'm using two rotary encoders on a Arduino Micro clone and everything worked on the first attempt. However I found a bug in the python code for the encoder handling  when using them mode 1 (send up or down signal).

The implementation of that functionality relies on this code which is a bit flawed.

 

It triggers the HAL pin waits for a very short period and the untriggers the HAL pin again. This would only sporadically work when I tested in on the PC I'm using for LinuxCNC.

Instead of doing the wait approach I think it would be simpler and more fool proof to have the Arduino code send two events when using mode 1. One event to trigger and another event to cancel the trigger a short while later (just like it does for the normal push buttons) so no waiting is required in the Python code.

With all the milling down I turned my attention to the electronics, consisting of a small Arduino micro clone and two rotary encoders with built in push buttons.

 

 

Here is how the complete assembly looks.

 

 

Here it is installed on the side of the control panel.

 

And here is a short video showing how the two rotary encoders work in LinuxCNC with the Probe Basic user interface.



The LinuxCNC ArduinoConnector by Alexander Richter worked surprisingly smoothly. However I did find a bug in the Python code when it came to using the encoders in up/down mode instead of counter mode. I'm going to report that bug in the forum thread for the Arduino connector, however it was not a show stopper as I simply switched to counter mode instead.
 

OK next is to test the FPGA interface

Can you power down the system, unplug the flat cable from the 7I33
power up and without launching LinuxCNC, a report the results of this
command:


mesaflash --device Ethernet --addr [your_cards_IP_address] --rpo 0x1000

[your_cards_IP_address]  is likely 10.10.10.10 or 192.168.1.121

 

I wanted to add, I downloaded linuxcnc from the official website, installed the system several times, the problem remained. If I understood correctly, gmoccapy intercepts some mdi commands, this is somehow connected with the probe screen, accordingly, when I open the file with g-code, an error occurs. I would like to make a video describing the problem, but my knowledge of English is very poor.

I spent the last week with a really bad cold and while being bored by the need to rest and stay calm I decided to design a small addon for the control panel on the mill.

When I first designed the control panel I had never touched a CNC mill so I had no real idea which physical buttons that I would need.

After using the machine for a while I have realized that having rotary encoders for controlling feed and speed override would be very useful as it would mean that they could be operated while wearing gloves which does not work very well with the touch screen.

As I had plenty of time to kill this addon might have gone a bit over the top but it's very sturdy and works really well.

I started by milling the body out of some 6082 aluminum.

 

 

 

 

I then milled a face plate from a 2 mm thick scrap piece of stainless plate that I had laying around.

 

 

 

 

Good to see you have comp working.
The raw error looks very linear, are you sure about your Exp coeff value?

The card is a 7i80HD-25 with the 7i80hd_25_sv12.bit on it, addr 10.10.10.10
I am sorry if my answers don´t get in in time, but the forum cuts out frequently so I do not always have access.

If this is of any importance:
System Debian GNU/Linux 12 bookworm X86-64
Linuxcnc 2.9.0

hello, I am a new user of linuxcnc, I am creating my first milling machine, in the process I encounter many problems that I am trying to solve.
I can not solve the last problem - after installing probe screeeb 2.9 I can not run the G-code program,

Can anyone help me in setting up remora on btt skr3 board. I have posted my config files on previous posts. 
Now can I can make LinuxCNC to come out of estop. But stepper don't move, not even slightly. Don't feel like stepper is energized. Getting joint following error. LinuxCNC display dev/ttyAMA10 device, I connected through minicom but can't get any output on screen. 
PS. I am not new to remora, earlier I was using on Octopus pro board, now when newer Remora supported TMC5160 on skr3, so I changed the board.

I had a joint following error as well but, it was because my default jog speed was set too high for my set up. Not sure if this is happening to you but, thought I would mention it.

I posted something I thought might be helpful since it seemed to fix my problem but, then it started happening again.  My SPI interface keeps getting reset as well and only when my spindle gets turned on.  I already created a shielded cable between the SPI connections. I thought messing with the base servo speed helped in the ini file at one point but, I just tried again and got the same microcontroller reset.  After that I have to reset the microcontroller before I get a good status signal for the SPI connection and I can toggle machine power once again and communications work as well.  I guess it could be interference on the SPI interface still but, I'm not sure how that is happening. EDIT:  I guess after creating a shielded SPI cable it did work for longer before getting an SPI reset.  I still had issues and I just put a piece of tin foil over no directly onto the raspberry pi4 GPIO pins and it looks like all of my errors are gone so maybe some EMI was getting into the raspberry pi pins and resetting the controller somehow?  I'm still testing to see if my problem is gone for good but, fingers crossed.

I'm happy to say, I was just being dumb and -5  was lowest number in my head except it was negative so it was obviously the highest number.  I also spent a bit of time playing with spreadsheets and the raw RTL file and it was easy make a mistake shuffling data.

So, I wrote a python script to handle the process. (I haven't tested it with an axis going in the positive direction, it should work.) 
  Renishaw_Laser10_with_LinuxCNC

I really hope it helps someone someday.  I've attached my results before and after.

OK it should be possible to debug this step by step:

First what FPGA card and what firmware is being used?

I not remember tuning software on lichuan servo, stepper have utility to connect driver and change parameter - only on chinese

Has anyone been able to connect the drives to their tuning software. Maybe its because im on windows 11.