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  • andypugh
  • andypugh's Avatar
02 Sep 2025 12:26
Replied by andypugh on topic Date and time synchronization

Date and time synchronization

Category: General LinuxCNC Questions

This is a general Linux / Debian question rather than a LinuxCNC question, so you might need to broaden your search.

raspberrytips.com/set-date-time-linux/

Might help?
  • scotta
  • scotta's Avatar
30 Aug 2025 23:04

Remora - Rpi Software Stepping Using External Microcontroller via SPI

Category: Computers and Hardware

Hi again and thanks for all the help up until now!

I wan't to give more context and explain myself better, we have been using this cnc router since 2023, originally setup with a raspberry pi 3b and octopus pro combo, it has worked wonders and is amazing the only real issue is that the raspberry pi 3b was slow. Recently we made the change to a raspberry pi 5, we took the original .ini and .hal files which we then update to be compatible with the new remora version, we kept the same config.txt file. We installed the linuxcnc-raspberrypi5 image and installed the remora components as instructed in the documentation.

The issues we've seen: when we first loaded linuxcnc and ran the .ini file by double clicking on it and choosing linuxcnc as the app to run the ini file we then saw the raspberry pi 5 using rp1 driver alert, we initially thought this was error but figured this was just an alert and so continued. We then started testing leaving e stop we could but just for a moment, no more than 3s, we could even get to enable but non of the drivers actually enable. We then tested if this was the E-stop's fault but we assumed it wasn't since if we disconnected the estop we could exit estop at all, wehn it was properly setup we could but can't enable the steppers fisically. This isn't a stepper issue or driver issue since they get enabled with the raspberry pi 3.

Thanks in advance and thank you for all of the help until now! Oh and sorry for any grammar or spelling mistakes, english isn't our first tounge.

Ok, so I pulled out my octopus board and RPi5 to see what could be the issue. I found my working config and noted:

#SERVO_PERIOD = 1000000
SERVO_PERIOD = 5000000

Making this change to your config, I got it up and running. With the faster servo period the board was throwing so many communication errors.
  • tommylight
  • tommylight's Avatar
29 Aug 2025 19:55

HP Z600 old workstations for use with LinuxCNC

Category: Computers and Hardware

Yesterday i got 5 of Z600 workstations, as life would have after a friend gave one for free to me as i service and maintain his laptops and PC from time to time, i asked for the price as he had another 7 home collecting dust, and after quite a bit of back and forth (and bickering) we agreed on another 4 for 100 Euro total, making it 25 Euro a piece! :)
Wasted yesterday evening and night, and today all day testing and installing those, organizing memory modules (several types of several sizes on all of them) ended up 4 having 16GB of ECC RAM and one having 24GB of ECC RAM and some left over 2GB and 1GB modules, all have 128GB SSD and some have and assortment of spinning HDD's from 80GB to 500GB, all have old NVIDIA Quadro graphic cards that now seem pathetic compared to a GTX1060/6GB or RX580/8GB that i promptly switched to on two of them, all have 2 of Xeon 4 core CPU's at 2.4GHz, and proprietary 650W power supply with a single 6 pin VGA power connector, and all weigh in at over 20KG !!!
So far tested with Linux Mint 22.1 and LinuxCNC 2.10 on 6.13 RT kernel, all have very good latency from short test i did. Will do more tests and also add a parallel port to one to test with as they do have PCI slots.
Have to go to the shop and finish 2 more installs, so for now i leave you with this:
Do NOT buy raspberry PI, buy everything else.
  • Ul
  • Ul
28 Aug 2025 11:55
Replied by Ul on topic in linuxcnc freecad 1.0 einbinden

in linuxcnc freecad 1.0 einbinden

Category: Configuration Tools

Habe das Problem gerade gelöst. Auf der Downloadseite von FreeCAD gibt es 2 Linuximages: x86_64 und aarch64. Da LinuxCNC bei mir auf einem Raspberry läuft, funktioniert nur Letzteres. Aber es funktioniert 

Die heruntergeladene Datei kann man ohne Installation ausführen, wie in der Anleitung oben beschrieben: 

After download, right click on it, properties, permissions, check "Allow executing file as program", close, double click on it.

  • Gusgus
  • Gusgus
27 Aug 2025 23:20

Remora - Rpi Software Stepping Using External Microcontroller via SPI

Category: Computers and Hardware

Hi again and thanks for all the help up until now!

I wan't to give more context and explain myself better, we have been using this cnc router since 2023, originally setup with a raspberry pi 3b and octopus pro combo, it has worked wonders and is amazing the only real issue is that the raspberry pi 3b was slow. Recently we made the change to a raspberry pi 5, we took the original .ini and .hal files which we then update to be compatible with the new remora version, we kept the same config.txt file. We installed the linuxcnc-raspberrypi5 image and installed the remora components as instructed in the documentation.

The issues we've seen: when we first loaded linuxcnc and ran the .ini file by double clicking on it and choosing linuxcnc as the app to run the ini file we then saw the raspberry pi 5 using rp1 driver alert, we initially thought this was error but figured this was just an alert and so continued. We then started testing leaving e stop we could but just for a moment, no more than 3s, we could even get to enable but non of the drivers actually enable. We then tested if this was the E-stop's fault but we assumed it wasn't since if we disconnected the estop we could exit estop at all, wehn it was properly setup we could but can't enable the steppers fisically. This isn't a stepper issue or driver issue since they get enabled with the raspberry pi 3.

Thanks in advance and thank you for all of the help until now! Oh and sorry for any grammar or spelling mistakes, english isn't our first tounge.
  • Gusgus
  • Gusgus
27 Aug 2025 21:26

Remora - Rpi Software Stepping Using External Microcontroller via SPI

Category: Computers and Hardware

We have used this settings before, and the machine worked fantastic, the only change we've made is the change from raspberry pi 3 to 5 and the Remora version change. Well attempt config changes. Thankyou Scotta!
  • Gusgus
  • Gusgus
26 Aug 2025 02:05

Remora - Rpi Software Stepping Using External Microcontroller via SPI

Category: Computers and Hardware

Hello! My team and I have been setting up a cnc using a raspberry pi 5 running remora to an octopus pro with spi, this then uses 4 Ext motor v1.1 to generate the steps using stepgen in the octopus config to generate movement with some DM556 drivers these are wired directly to the steppers. We have been having issues, when we boot LinuxCNC an error appears, raspberry pi 5 using rp1 driver. We belive this to be a warning to tell show that the rasp5 got recognized.

We haven't been able to enable the stepper drivers, the e-stop is working. We can enable but the moment we try to jog we get a joint following error this, caused by  the drivers not getting enabled and not getting any movement. 

Any ideas on what we could do?
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