LinuxCNC on Raspberry

I also want to join the question about Raspberry Pi support.
I work on control cards communicating through SPI, which layout is designed for use with Raspberry Pi. One of the boards is designed for stepper motor control and has a hardware FPGA step generator. I think the latest version of Pi has more than enough power to drive any CNC machine.

I'm currently driving our boards using the LinuxCNC system, which has been compiled by the group Machinekit.
Everything around RT tasks and motion control works fine, but there is problem with GPU performance, when I load a bigger nc file, FPS decrease to ~1fps and response of system is too delayed.

Short video:


At the beginning is GUI switched to DRO and response of buttons under mouse is ok, when I switch to preview animation, the response will decrese.

I hope that linuxcnc community will support at least Raspberry Pi and BeagleBone soon. I see the increasing number of attempts to drive some machine by raspberry pi
Some important benefits of RasPi:

• Powerful CPU and GPU for numerical control and GUI
• More suitable peripherals for hardware development such as SPI, compared to x86 motherboards where advanced experience is necessary for develop any PCI, PCI-express, Ethernet boards
• Powerful CPU and GPU for numerical control and GUI
• The board size allows you to build a compact controller

Regards, Viktor

Are you running Raspbian or Debian? Apparently the armhf version of Debian runs much better on the Pi2 and Pi3, but nt at all on the Pi1.

sourceforge.net/p/emc/mailman/emc-users/...ail.com/#msg35823678

I use Raspberry Pi 3, I'm running on minibian, sourceforge.net/projects/minibian/
I think I tried the last raspbian and it worked the same way. I'll try again.
I assume the problem is in the OpenGL or OpenGL ES support for that preview animation.

I tried it with the new Raspbian, it looks better.

viktan wrote: I tried it with the new Raspbian, it looks better.

Can you share your SD Card iso?

FYI, Viktan has sent me the pidi 3805 and 3811, and i received them already, thank you Viktan.
Due to a miss hap i was not able to test them yet, burnt my right hand on a freshly welded piece of round bar, a guy came at me with it so i grabbed it to get it off him......nevermind, i already have 2 raspberry pi3 and a pi2 on the way, so will be doing the testing and reporting soon. Also got a 3.5 tons MAZAK so that did postpone things a bit.