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Computers do not care much about temperature on the low side, the used "Enterprise" ones i use are perfectly fine even at -5 C, yesterday all day long, not a single issue.
So if yours is having issues at 0, there is something failing inside, probably power supply as noted by beeps, and it will sooner or later fail even in hot environment.
I have several of those in shops with no heat around here, not just one, i am sure some worked even at -8C.
I am also sure some will fail to start at +5C, and always that is a sign of something failing, and as with everything some will work for many years and some will not.
Computers do care about moisture, and i have several dead from it every year.
TL:DR
CPU's do not care up to -70 or even much more
Capacitors do care a lot
Resistors do care a bit
etc...

Hello all,

I have fun with my converted milling machine and we are preparing to move it to its final place in the shop but now the computer is starting to act up.
The machine is standing in a workshop that is not heated or insulated. So the Computer (hp ProDesk Mini PC) is exposed to really low temperatures. Up until the start of this year it was never an issue but now the computer crashes shortly after booting and starting LCNC. I know this has to do with the cold because I moved the computer inside and after it warmed up I was able to run it just fine. After moving back to the shop it gave me about 20 minutes of work before crashing again. (Likely after cooling down enough) At some point while trying to boot and crashing the computer was beeping in a way that indicated a power supply issue.

The computer was exposed to 0°C (HP datasheet rates it to +10°C). I know the Mesa cards are allowed to handle 0°C but the computer seems to have taken some damage.

It was only a 100€ computer and I was able to save my configs so I'm not to sad if it has taken permament damage.

I have now bought a heating cable used with water pipes which gently heats the computer up with 64W of heating power and a thermostat but after a first test it only ran for 5 minutes.

TL;DR:
I have a computer that was affected by freezing temperatures (0°C)
now it won't run for long
I need a good solution (heating the shop unfortunately not an option)
Does anyone know Computers that handle the cold?
Any other experience?

Before that I had already assembled CNC machines and 3D printers. But it was much easier with them. There was a board already prepared for a milling machine or 3D printer. I edited the Marlin firmware file and uploaded it. That is, I had work with CNC. I have never dealt with FPGAs. Installing LinuxCNC on real hardware is not a problem. Buying a ColorLight board is also not a problem. I have been working with a soldering iron all my life))) But I have never worked with Linux))) That's why it's a dark forest for me. I read on GitHub how to flash a board and make inputs/outputs by cutting tracks and a resistor, I don't remember exactly))) First, as I understand it, you need real hardware, the ColorLight board itself - flashed. And then its configuration. But I didn't find any information about setting up the board.

Could mapping of the rack be possible as some do for ballscrews\leadscrews ?

Unfortunately I’m not really up on the implementation.

I wouldn’t be of the opinion USB = bad. I think it can be let down at the physical layer by less than great cables.
Whilst not the greatest fan of Arduino, it does allow for projects like yours and sharing is quite easy. Developers such as yourself should be thanked, as there is a lot of behind the scenes frustrations, hopefully you didn’t pull too much hair out. Keep up the great work.

Just another thought, Ethernet would add a bit of extra cost, and could mean a 2nd Ethernet card for the pc and such. And complexity for some setting it up. USB\Serial keeps it easy.

All the best from Down Under
Rob

Grotius,
A big thank you for working on this hard problem.
My offer for sending you EtherCAT servo and stepper drives still stands. Let me know. I have 400W and 750W 3000rpm chinese servos and 4.5A chinese steppers with EtherCAT available which I can send out to you.

The repository downloaded and compiled ok using the "installer" script.
S curve tpmod was also running properly.
But it looked like it was falling back to a single block lookahead.
Is lookahead implemented in this new planner? If yes, how can I enable it? What are the settings that I can play with?
I tried with G64 Pxx Qyy but that did not seem to have too much effect.

I tried to work with the tpmod hal params without much change to the output. I was trying the G3 to G3 blends in the standard LINUXCNC startup gcode.

Once again a big thank you for working on this problem.
-automata

I have two physical hosts to run iGH separately.
I want to implement the redundant function? Can it be achieved? What to do?

Cant do this anymore bye all wrote:

.... that's right ndiswrapper.

Oh how i hated that, to the point of buying Senao access points and using the internal PCMCIA cards as they used Atheros chipset that worked properly.

Hello my guys, I am very surprised of how much conversation I have missed, somehow I was not notified of new posts in this thread.
@cornholio and @blazini36 honestly between your "discussion" I was not able to understand what exactly you suggest.
I have been in several discussions in the direction "USB -> bad " where we explored other connection possibilitys, for example Ethernet TCP and UDP connections.

Personally I feel like USB offers a good ratio between ease of use and speed good enough.
However I do see the benefit of offering a faster Option for those that need it. But at the end we have to see that Arduino-connector offers a cheap alternative to Mesa Cards, but it will always have its limits and at some point the user should consider just using a Mesa card instead.
As I am not a very experienced Programmer I am always very happy for advice, so please continue to share your knowledge.

Currently I am reworking the Codebase to implement 2 basic but drastic changes.
1. The Configuration will change to a single YAML Config file, inspired by Klipper and ESPHome. This will allow to copy/ paste Feature specific configs more easily. Also a lot of Emails I get are related to little configuration mistakes. I hope this change will help people get it right more easily. 

2. The old Serial connection sends Pin states encoded in a string. The new version will send everything directly in a bitstream, so for example 8 Input Pins can be transferred in a single byte. The cost of that change is that the user looses the possibility to communicate with the Arduino manually for testing. I expect the communcation to speed up quite a bit from this change - pun intended.

Additionally I have collected a lot of feature requests to support more Hardware and offer more logic for existing features, which if i find the time i am willing to implement in the future.
Hopefully I will be notified again in the future so I can answer more quickly in this thread.

Cheers from Germany!
Alex