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royka wrote:

And to see if it's worth to look further, how is the latency with isolcpus=5 ?
If it's good enough, what's in your armbianEnv.txt?
You installed the spi overlay by editing as in:
forum.linuxcnc.org/media/kunena/attachme...k3399-spi-spidev.txt

And installed with: sudo armbian-add-overlay rockchip-rk3399-spi-spidev.dtso

Yes, I used thecommand, but it didn’t work. I also tried copying and replacing the files with the new ones, but still, there was no result. However, if I use thefiles you provided for Linux 6.9.12, they seem to solve the SPI issue. But with the recent image (6.12-rt), no matter what I do, it doesn’t work.One thing I noticed is that when I use the Cinnamon desktop environment, the LinuxCNC error doesn’t occur. So now, I’m running LinuxCNC on the Cinnamon desktop in real-time mode using thefiles you provided.Now, I’m wondering how I can compile my customized build with the Armbian build system. I want to learn how to do this so I can compile anything I need. For example, I currently want an Armbian image with a real-time kernel that already has LinuxCNC installed, without any additional packages.I did try compiling using the Armbian build system, but for some reason, the resulting image doesn’t boot at all.

Use QTdragon, premeasure your tools including your probe and its all included.. I use a height gauge offline.

 

   

this is what i went with and the cheapest is what drove this decision. Since i have never done a plasma machine before top-of-the-line stuff is is not something i want to do on a first-time build for plasma., these drives are rated for 42V so 36v is safe and should do what i need them to do. i plan on keeping the gantry very light, plasma should not need anything to rigid. my thought is 11-gauge square tube should do fine, i honestly don't think you need much more than 1 linear rail on the gantry maybe 2 on the Z but 1 there too would probably be enough.

i will be doing my planning in fusion 360 to work out a final game plan, i might try to design things so i can add a rotary later down the road if i want to get into than later. This straight torch is pretty long so a z with lots of travel is probably something i will factor into a design. Z height is something i would avoid in a milling application but with plasma it should not matter much.

Merged. thank you.

Hi everybody
Sorry, but I didn't read all the 73 pages of this topic. I start using Probe-Screen but have a little bit a problem with missing M6 command.

At the moment I have several tools with SK30 holder. Every tool has it own length in the tool table and I make manual toolchange. Now I want to add a 3d probe sensor.

I don't have a tool length sensor mounted on the bed. I only use it to measure the tools.
So I would like to keep it that way.

What would be the best way to solve this problem?