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I am using the card designed by Hakan and it does not have a driver to make the differential encoder input. I have not tested the index yet, I have only tested the encoder with one that does not have an index pin. In the next few days I will try to test it with one that does have one.

Do you have LATHE = 1 in the [DISPLAY] section?

I'm looking into why the plotter does not show the correct view for a lathe like Axis does.

The Diameter/Radius checkbox works with LATHE = 1.

JT

What Linux version?
What RT kernel?
Does
sudo lspci -v
Show the wifi card?
Any way you look at it, get a USB WiFi dongle, built in WiFi is PCI-E so can cause big latency issues when in use.
If you still want to use it, might have to install the latest RT kernel available for whatever your Linux version is.

All PC's in probably last 10 or more years like to have 2 memory modules as they can all do dual channel communication.
Some Xeon's and AMD can evem do 4 channels.
And yes, more memory improves latency, so 8GB should be minimum and there is no reason to have over 16GB for Linux and LinuxCNC if used for machine control only.
When possible, always choose 2x4gb or 2x8gb.

Did you change the the dtb in /boot/armbianEnv.txt
fdtfile=rockchip/rk3399-orangepi-4-lts.dtb
-> fdtfile=rockchip/rk3399-orangepi-4.dtb
+ extraargs=isolcpus=5 or 2-5

And what result do you get?

To prevent the rt kernel from getting overwritten you could hold the package with: sudo apt-mark hold packagename

First make sure both motors on the X axis are turning in proper directions.
Make a new config with no tandem and set the X axis to both outputs, then do very small jogs to check.

Right now you can have a tool touch off button for each axis but the line edit to enter the touch off value there is only one.

What is your use case for needing multiple line edits?

Can you post a screen shot of your gui?

JT

Hi. I have just tried to install LinuxCNC on a Fujitsu J550n wit a ax200 wifi card.
I have trouble to get it to work. Where do i start?

i found a alternative.
It wokring but not like the mist and flood Buttons. (If estop is not hit i cant use the flood and the mist buttons until i hit the estop and i turn on the mschine. Well in my solutions i can turn on even the estop is not hit. But i can live with that)

I saw something interesstin according to mist or flood in the .UI file.           
     
 <property name="mist_action" stdset="0">                   
  <bool>true</bool>                 
 </property>

I didnt found anywhere "mist_action", only in .ui file. So i guess it is something implemented somewhere and thats why it was not wokring my setup with "air_action" because its anywhere implemented (in linuxcnc).

Maybe do you have any idea where could i find the "mist_action"

I have seen this on Facebook before, too... It is quite clever

Everytimes things seem easier , for you , coders , compiling included , tried once compiling linuxcnc , 12 years ago,gave up ,
as i always found some up-to-date debs and managed with missing dependencies .
No non lts option ? hmm , i guess where armbian step aside ''standard support'' is the broken pcie of first opi4.
I did not test the whole compatibilities yet , ethernet is one and could i end up with problem ,does log error for the missing NPU (weird it's on b ?! ).
May i suggest , dont do upgrade , or know what you choose to with your rt image ,as i did broke repo & reinstall,quick fix .
Tar.xz does wonders , 4.7gb to 1 ,amazing .
isol 2-5 , i'll check , tested a lots of combinations , lazy me , did not note them ...
Armbian-config use to have cpu settings options ? it's gone?

75 pages of build thread and I can't find what I want so this will have to do.
forum.linuxcnc.org/show-your-stuff/32029...ild?start=310#124765

I suggest you slats are only mounted each side and in the middle. Then you can put a bend in them and have the slat ends pushed against the frame which stiffens them up so they don't wobble. I copied this design from a swiftcut machine on the show room floor.
The slots holding the slats here are very  shallow, maybe only 10-15mm laser cut into some 16mm strips
 

Try setting isolcpus=1
I use grub-customizer to do this. It is installed on the linuxcnc ISO's

In this case I need it to retry a thing if it done succeed the first time so L0 seams great for now.
but so many possibilities when started to understand this! haha

I had an asrock Q1900B-ITX and it liked to have two identical memory modules. May also help with latency.

Test results (copied from here: forum.linuxcnc.org/18-computer/29224-asrock-q1900b-itx#128103 ):
Quick ~30-60min test with 6x glxgears and a hd video, only memory module(s) were changed between tests.
servo / base latency, ram
11035 / 11234 2x 8G Hynix HMT41GS6BFR8A-PB 1600 CL11
9380 / 11482 2x 8G Corsair CMSO8GX3M2A1333C9 1333 Mhz CL9
10747 / 12206 8G Micron MT16KTF1G64HZ-1G6E1 + 8G Samsung M471B1G73QH0-YK0
9886 / 17090 4G Micron MTBKTF51264HZ-1G6E1 + 4G Samsung M471B5173QH0-YK0
11618 / 17726 1x 8G Samsung M471B1G73QH0-YK0
11898 / 20126 1x 2G Ramaxel RMT3190ME76F8F-1600
11693 / 22918 1x 4G Micron MTBKTF51264HZ-1G6E1
10440 / 23242 1x 8G Hynix HMT41GS6BFR8A-PB 1600 CL11
11627 / 24188 1x 8G Micron MT16KTF1G64HZ-1G6E1
11257 / 28173 1x 4G Samsung M471B5173QH0-YK0 PC3L-12800S-11-12-B4
10107 / 28223 1x 8G Corsair CMSO8GX3M2A1333C9 1333 Mhz CL9