Fehlemann Picomax 100 Retrofit

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13 Nov 2021 17:07 #226331 by anfänger
Like promises in my shop update thread I will retrofit my Fehlmann Picomax 100.
The Mesa board and power supplies are on their way also the din rail holders are printing.
I have an all in one pc with an i5 2.7 ghz cpu lying around and wanted to give it a try.
For some reason I can't get the buster ISO to work, when I try the live system I get an unpack error and the install won't start. I just get a lack screen.
Weezy I can run the install but when I start the keyboard, touch and mouse don't work.
I am kind of stuck here. anyone an Idea here?

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13 Nov 2021 18:05 - 13 Nov 2021 18:05 #226340 by anfänger
Ok none of the Debian 10 installers worked. So I gave mint a try and it’s running. Next step installing linuxcnc and qtpyvcp
Last edit: 13 Nov 2021 18:05 by anfänger.

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13 Nov 2021 19:49 - 13 Nov 2021 19:50 #226353 by tommylight
Mint 19 works perfectly, Mint 20 does not, it uses Python 3.6 while 3.7 is required.
Give it a try, maybe something changed.
Edit
Mint 19 does not work with QtPlasmaC.
Last edit: 13 Nov 2021 19:50 by tommylight. Reason: more info
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13 Nov 2021 21:36 #226370 by anfänger
Thanks, I'll give it a try.
Still don't know why the buster images, failed.
But what I learned over the last retrofits, is:
one it works, don't touch it!

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13 Nov 2021 22:59 #226382 by tommylight
cdimage.debian.org/cdimage/unofficial/no...d64-xfce+nonfree.iso
Dang, it is had to find it now the 11 is out.
That is Buster with all the bells and whistles included, so download, image, boot.
If it works OK, proceed to installing RT kernel and LinuxCNC using:
linuxcnc.org/docs/2.8/html/getting-start...th_preempt_rt_kernel
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14 Nov 2021 11:55 #226454 by anfänger
yes!! this iso is installing right now...
good it's flatmate time, I downloaded and tried to install 8 different linux iso images, four were successful, but I think I will move on with the image above.

Some stupid question my computer has two ethernet cards one intel. which one is better for the mesa board?
Ok maybe it is a bit to early to thin about it, first I should have a look at the latencies

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14 Nov 2021 12:33 #226455 by tommylight
Intel works with irq coalescence set at 0, Marwel were really good but i do not see them in use anymore, Realtek works OK.
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14 Nov 2021 12:46 - 14 Nov 2021 13:13 #226457 by anfänger
Thanks,

If anyone uses
linuxcnc.org/docs/2.8/html/getting-start...th_preempt_rt_kernel
to install linuxcnc, use another key server:
sudo apt-key adv --keyserver hkp://pgpkeys.eu --recv-key 3CB9FD148F374FEF
Worked for me linuxcnc is installing, an I am preparing for latency tests

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Last edit: 14 Nov 2021 13:13 by anfänger.

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15 Nov 2021 08:46 #226556 by anfänger
Who needs Cad, when you can have cardboard:

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15 Nov 2021 11:07 #226567 by tommylight
Nice! :)

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