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To make it easier for you, PC's are not RPI's, so stop thinking the same way about them.
PC is a standard for over 30 years, it changes a lot but everything else changes with it, mostly everything works out of the box in Linux
RPI is a good idea that went belly up very fast and made a huge mess, and nothing works as it should or without wasting huge amounts of time to fix stuff
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Get the ISO from the downloads page, if you want the official version, burn to USB, boot from USB, install.
-or get the Debian 12 ISO with whatever Desktop Environment you like
-or get the Linux Mint Debian Edition 6
for last two: Burn, boot, install, reboot, then
sudo apt update
sudo apt upgrade
sudo apt install linuxcnc-uspace

That's why I asked!

Use whatever you like, at such low current/power ratings there is no difference nor "proffered", it is as simple as what is cheaper for you since you have both options and you do NOT need a rectifier as it is in the drives.
ALSO: the link you posted will NOT work, it is a 40VA so approx 30W transformer, you would probably need something like 200-600W depending on what current the motors will be driven.
In general for you it is better to get a transformer as a good switch mode power supply will probably cost more, like MeanWell or Delta.
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just browsed under, NO variacs!!!
And if you do not have the drives , take IhaveNoFish's advice and buy the mains ones.

As an aside, I am also a little confused why PCW suggested 00, 11, 01, 10, instead of 00, 01, 10, 11. It seems more logical to me to order it like legit binary, and it's not like it's harder to connect it this way.

The 4  --> 2 diode encoder circuit I posted is in binary order but you need to consider
that the 7I73 inputs have pullup resistors so are high when unconnected and low when
grounded through a diode so:

SWITCH POSITION
0  Grounds inputs 0,1 with CR1 and CR2 = 00b = 0d
1  Grounds input 1 with CR3 = 01b = 1d
2  Grounds input 0 with CR4 = 10b = 2d
3 No connect so = 11b = 3d

 

Moved to PlasmaC section.
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Diel wrote:

It looks like it does not wait the time set on parameter "Start Fail Timer" after turning the torch on to turn on the message. It also does not try to turn on the torch again after the time set on parameter "Retry Delay" not even once (even with the parameter "Max Starts" set to 3.
 

You are looking in the wrong place, that is all valid if arcOK is not detected
In your case it is detected and lost, and this almost always happens due to interference from lack of proper grounding and shielding, so that is the first thing to check, recheck and only when those are OK move on to other stuff.
One thing that helps with troubleshooting is setting a bit of delay for the ARCOK signal in hal.

rodw wrote:

Not quite what I was looking for but something like this. SOme have stops that let you limit the number of positions
au.element14.com/lorlin/bcks1004/rotary-...MA-RECO-PDP-STM72189
 

In the US, this is all Digikey has that's coded for hexadecimal. My own personal lack of vocabulary for searching is also something I hope to improve as part of this conversation.

www.digikey.com/en/products/filter/rotar...AMqcAnAJYA7AOYgAvtKA

Active mill operation as shown in your graphic simulation.

Yes, got the simulator working and running example /3D-Chips.

Still struggling with odd behaviour sometimes, but I am getting there.
I seemed to trip over limits initially, but then got it going.

I am sure all of this is me !

When you installed Linuxcnc ISO you were not connected to the internet so its looking on a CD ROM that does not exist.
I would suggest you reinstall Linuxcnc while connected to the internet, then do this again

Hello Sandro,
would like to talk to you about your configuration of the Lichuan Servos with absolute encoder with linuxcnc.
I need feedback coz i am about to pull the trigger on some kits like that.

Thank you in advance,
Tiago Monteiro from Portugal

Yes it pings with average time of 150ms but still can't find the files, there may be existing setup problems, here is what the update produces:

phil@sodickA:~$ sudo apt update
Ign:1 cdrom://[Debian GNU/Linux 12 _Bookworm_ - Snapshot amd64 LIVE/INSTALL Binary 20240721-21:05] bookworm InRelease
Err:2 cdrom://[Debian GNU/Linux 12 _Bookworm_ - Snapshot amd64 LIVE/INSTALL Binary 20240721-21:05] bookworm Release
  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Get:4 download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease [1,575 B]                                             
Hit:5 www.linuxcnc.org bookworm InRelease                                                                                              
Hit:6 repository.qtpyvcp.com/apt stable InRelease
Err:4 download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease
  The following signatures were invalid: EXPKEYSIG A94819A7CB97A204 science:EtherLab OBS Project <science:EtherLab@build.opensuse.org>
Hit:3 repository.qtpyvcp.com/apt develop InRelease
Reading package lists... Done
E: The repository 'cdrom://[Debian GNU/Linux 12 _Bookworm_ - Snapshot amd64 LIVE/INSTALL Binary 20240721-21:05] bookworm Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease: The following signatures were invalid: EXPKEYSIG A94819A7CB97A204 science:EtherLab OBS Project
 

Not quite what I was looking for but something like this. SOme have stops that let you limit the number of positions
au.element14.com/lorlin/bcks1004/rotary-...MA-RECO-PDP-STM72189

tommylight wrote:

Out of curiosity, how much is a RPI and a good touchscreen these days?
Wondering as i got a Lenovo X1 Carbon Yoga for 120 and a Lenovo Yoga Y370 for 220, bot work for LinuxCNC with Mesa, both have 120Hz touchscreens, very high quality ones, very good keyboards, and both do over 4-6 hours on batteries.
 

tommylight,

I took you advice and ordered a Lenovo Yoga. The touchscreen is miles better than the cheap display I was planning to use with the Pi. So no more Pi, I'm going touchscreen Yoga and I also have a docking station. The Yoga presently has Windows on it however I have no desire to keep windows.

So regarding getting LinuxCNC up and running on the Yoga:

1) It's never been clear to me if the latest LinuxCNC release is hardware dependent ie. one version for a PC and a different version for say a PI?
2) A link to the correct install file for a PC?
3) A link to a "How to install" , where to get the file, and how to install including over-writing the existing Windows install etc, would be much appreciated.

Thanks in advance,
Jeff

 

There may be multiple things needed to get the direction correct, but here is one error:

[SPINDLE_0]
P = 0.0
I = 0.0
D = 0.0
FF0 = 1.0
FF1 = 0.0
FF2 = 0.0
BIAS = 0.0
DEADBAND = 0.0
MAX_OUTPUT = 24000.0
OUTPUT_SCALE = -24000 <<<<<<<<<< The 7I76E spindle output is unsigned so this must be positive
OUTPUT_MIN_LIMIT = 0
OUTPUT_MAX_LIMIT = 24000