I'm looking for Arduino discussions and there's plenty on Reddit but almost dead silence here.
Is this all there is?
There's so much spam, and people diligently downvote. But the posts are still shown, with -53 votes or something.
When a post is clearly unwanted, could it be hidden?
I run an old desktop mainboard as my homelab server. It runs Ubuntu smoothly at loads between 0.2 and 3 (whatever unit that is).
Problem:
Occasionally, the CPU load skyrockets above 400 (yes really), making the machine totally unresponsive. The only solution is the reset button.
Solution:
--> How could such a cpu-load-triggered reboot be implemented?
edit: I asked ChatGPT to help me create a script that is started by crontab every X minutes. The script has a kill-threshold that does a kill-9 on the top process, and a higher reboot-threshold that ... reboots the machine. before doing either, or none of these, it will write a log line. I hope this will keep my system running, and I will review the log file to see how it fares. Or, it might inexplicable break my system. Fun!
TLDR: VPN-newbie wants to learn how to set up and use VPN.
What I have:
Currently, many of my selfhosted services are publicly available via my domain name. I am aware that it is safer to keep things closed, and use VPN to access -- but I don't know how that works.
What I want:
I have some jet lighters in my shop. I'm not a smoker but they are useful for other things too. My problem is that they seem to not work at all?
When I buy them they are fine, push the button, clear "click" sound and a fine hot jet of fire. After a while though, they simply won't fire anymore, even though the little window shows that there's plenty of gas inside.
Are these also using the normal propane/butane as regular lighters?
edit: solved by printing at 20% of regular speed. This seems to give the filament enough time to ooze out of the nozzle, and the print result was excellent.
My Prusa MINI+ works like a charm, except with TPU. We have a 5-hour print task that starts well but fails after 2-3 hours because the TPU filament is no longer being pushed into the nozzle; instead it comes out of the extruder!
What could be causing this? Is the TPU just too soft and bendy? Is the shape of the extruder housing at fault?
It looks as if the TPU gets stuck and is then pushed into the extruder housing when the extruder continues to push. This happens again and again, but it's weird that it works well for hours before failing. The object is basically just a long block, so absolutely straightforward and no retractions.
We have checked that the nozzle is clean and has no obstructions. We have opened the extruder every time it happens, and there's no obvious problem to see (see photo 2 here).
We are considering to print a new lid for the extruder housing, see photo 3 here: (1) is the exit hole, and (2) is the cavity where the TPU ends up so it might help to change the lid (3) to a shape that does not leave a cavity there. Or is the problem that the roller (4) is too narrow or too soft?
For reference, the filament is Tinmorry black TPU from Amazon.
@PlutoniumAcid
@lemmy.world