linux CNC on Mac hardware?

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16 Jul 2021 14:17 #215059 by PaulQUE
linux CNC on Mac hardware? was created by PaulQUE
Hello everyone, I am currently doing a retrofit project, and the time to choose a computer has come. I have a couple 2009 IMACs (core 2 duo) lying around, and I know it is quite easy to install linux on old mac, I plan to use a mesa 7i96 board on the machine it self. My question is, can I install linux cnc on this machine if it runs on debian? will it run? How much harder would it be then on a cheapo dell optiplex? thanks

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16 Jul 2021 21:09 #215090 by Bari
Replied by Bari on topic linux CNC on Mac hardware?
You'd have to test the latency. If the BIOS lets you kill power management, what IO do you have, e.g. PCIe, Ethernet?

Cheapo Dells have been used many times before. You just need to see the latency results and if it has slots for LPT, Mesa (PCI/e) or Ethernet for IO.

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16 Jul 2021 21:49 #215098 by tommylight
Replied by tommylight on topic linux CNC on Mac hardware?
If Debian or Mint work on it, yes you can install LinuxCNC on it.
The more important question is how is the real time stuff going to work on it regarding latency, but that should also work.

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20 Jul 2021 12:09 #215407 by andypugh
Replied by andypugh on topic linux CNC on Mac hardware?

Hello everyone, I am currently doing a retrofit project, and the time to choose a computer has come. I have a couple 2009 IMACs (core 2 duo) lying around, and I know it is quite easy to install linux on old mac, I plan to use a mesa 7i96 board on the machine it self. My question is, can I install linux cnc on this machine if it runs on debian? will it run? How much harder would it be then on a cheapo dell optiplex? thanks

If you already have the hardware, then just try a live-disc boot with the LinuxCNC 2.8.2 ISO and see what the latency test gives you. 

If that looks good, then it becomes a little more difficult to test without the actual hardware, but if you are going to use the 7i96 regardless then that would be the next experiment. 
 

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07 Nov 2021 04:00 - 07 Nov 2021 05:55 #225546 by RNJFAB
Replied by RNJFAB on topic linux CNC on Mac hardware?
EDIT - Can't use USB port in the keyboard !!

I have an old iMac and can't get it to load from a live-disk boot.

Doing my head in and keeps coming up with a fatal error.
Last edit: 07 Nov 2021 05:55 by RNJFAB.

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08 Nov 2021 00:10 #225608 by andypugh
Replied by andypugh on topic linux CNC on Mac hardware?
Does the standard installer work? (ie, rather than the LinuxCNC one)
If it does, then you can start there instead.

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08 Nov 2021 08:49 #225641 by RNJFAB
Replied by RNJFAB on topic linux CNC on Mac hardware?
All worked for me with MX Linux using snowgoer540 instructions found here -> forum.linuxcnc.org/9-installing-linuxcnc...indows-users?start=0

I did have to use the usb in the screen and some alternative programs that work on a Mac.

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