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forums.raspberrypi.com/viewtopic.php?t=339068

www.makeuseof.com/tag/raspberry-pi-wont-...e%20HDMI%20detection.
 

I am now designing my first CNC controlled by an ARM SBC, it's going to be a small and simple 3 axis machine. RPI4 seems to be the most supported option: SPI for Remora and RIO.

RPI 4 comes in 4 different  RAM configurations: 1GB, 2GB, 4GB and 8GB. Which configuration would be optimal?

I need to take the drawbar out from the spindle in the pictures. Draw force is 250 lbs and I need to check the springs and maybe try to fix it. Don't know what was the force when new but it was advertised as bit more than 600 lbs ( 280kg). 
Any sugestion how to take it out? cannot find some proper drawings for this kind of spindles.

UPDATE
Nevermind, it was actually quite easy ... just unscrew the part marked in red. The drawbar will go out easily , but the belleville springs will remain in the main shaft ( so take care not to drop them on the floor as I did ...)

How can I make the buttons I put in Glade so that they become active when I first press them, such as turning the water on and off, and become passive when I press them the second time?

done!
I adjusted it by looking at the features of the water button.

Yesterday, I tried many times and the value was not permanent. I turned off the CNC and went home. Now, when I turned it on, I saw that the value was permanent. And I am trying it now, there is no problem. The difference from yesterday is only the PC was turned off and on. Could this be related to this?

How can I make the second variable permanent on the same page?
Or how can I run a second Python code on the same page?
If I can run a 2nd python code. I will edit the code for the 2nd variable

tommylight wrote:

I would stick to editing the networks file since most go that route, so all in one place.

And its documented

I re-read your initial message here what got out of it: The ELMO CLA6/200CD DC servo drive burnt out. You purchased Fuji alpha smart 5 AC servo and your having problem making it work with Arteco SU310 PLC.  Your servo motor is a Power Tetra 85 BLDC type.  A search for Fuji Alpha smart 5AC reveals that it’s a 3 phase AC servo drive thus compatibility problem. Possible solutions in your case: from best to worst”

• Find used Elmo drive on eBay
• Repair the Elmo drive
• Find BLDC drive that is compatible with your motor and can be adapted to work with the Artco PLC (your wiring diagram, Google and eBay are your friends in this case)
• Keep Fuji drive replace the servo motor with an ac 3 phase motor (same power as the existing motor, same line voltage same as fuji drive and has built in encoder that is compatible with fuji drive). You will also need a new control system such as Arduino or Linuxcnc but you will also need to hardwire it to Citizen CM2-PC805-0.

yes should have ethercat repos set up so follow the sticky

In Sheetcam, edit the post processor and remove materials handling code from the On-pen-down method.  (I might not have the name right, its been a while...)

Hi,
I was using a screen connected to the display port of the RPI, and through this port there is no image.
I used an HDMI screen and it gives an image and the RPI starts up fine, although the behavior of the LEDs is the same.
I will continue testing.

PCW wrote:

I am showing my age here by suggesting rc.local as it no longer is executed by default,

I used it till last year,so i am fully aware of it, but it is easy enough to make it work on Linux Mint.
-
I would stick to editing the networks file since most go that route, so all in one place.

I am showing my age here by suggesting rc.local as it no longer is executed by default,
a better way is probably to setup systemd to launch a script at startup  (if you don't want to use
the interfaces file method)

I will take a look at how this is best done.

I wonder if the LinuxCNC startup script (or a "linuxcnc-extra-setup" script launched by
the LinuxCNC startup script) would be another reasonable place for this.

PCW wrote:

There are two ways to make the change permanent

1. Setup the Ethernet connection in the interfaces file
(and remove the setup created by the network manager GUI)
Typical interface content would be something like:

# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
       auto enp0s25
       iface enp0s25 inet static
           address 10.10.10.100
           hardware-irq-coalesce-rx-usecs 0


The other option is to include the

ethtool -C enp0s25 rx-usecs 0

line in the rc.local script that is run at power-up




 

-

man hm2_eth will tell you how

Hi,
I have RPI4 4GB and I used a 32GB SD to flash these 2.9.2 and 2.9.3 images and also from the download link from the linuxcnc site, but the RPI does not boot and the red LED stays on for a few seconds and then turns off and the Green LED keeps flashing for a few more seconds and then both LEDs turn off completely. The screen shows nothing and remains gray.
The RPI works fine with the original raspbian image with the same 32GB SD.

Greetings.