PI400 Uinstall
I put the latest Repetier Server on my PI 400 and it's been working flawlessly for a week now. Almost 100 hrs of printing. Today all I get it comm time outs, resends, etc. I wasn't sure if it was going to work on a PI 400, so I kept my backup on a PI3 just in case.
The question is how do I remove Repetier Server from the PI 400?
The question is how do I remove Repetier Server from the PI 400?
Comments
In linux debian you use
sudo apt remove repetier-server
to uninstall the app. It leaves still /vat/lib/Repetier-Server with all your settings and data. You can remove them with
sudo rm -r /var/lib/Repetier-Server
if you are sure you don't need the settings any more.
BTW: If it worked fine and you suddenly get timeouts you might have changed something adding electronic problems. Other position, cables crossing other cables, different usb cable, other usb port, ...
Thanks for the instructions on removal as well. I think I tried every combination of commands I could think of to remove it, except, of course, the correct one... I am leaving the data and settings alone for the moment.
As for the changes, the PI 400 doesn't have enough USB ports for the two printers I am running from it. It only has 3 USB ports (USB 2 x 1, USB 3 x 2). I have a PI 400 Mouse, USB 3 2T SSD, USB 3 powered hub. The printers connect to the USB 3 powered hub.
Your suggestion got me thinking and the only thing I changed was I added a 1M USB 3 extension cable from the PI400 to the powered HUB. Before that, all the printing I was doing had the hubs built in cable connected directly to the PI 400 (it's a very short cable).
The new printer I added is an AnyCubic Kobra Max and the firmware is not available, but it seems to be based on some Marlin bug-fix version from Dec 2021 (probably their Vyper base would be my guess).
I checked the console on the PI 3 to the Kobra Max and below is what I see now. I get about 3 or 4 of those as the print starts and then it settles down and prints normally for the remainder of the print. So it's just the initial toss back and forth to start with. With the PI400, I'd see a dozen or more of the same messages and the print head would print like a drunken sailor where ever it wanted.
Hence I'm forming the opinion that there's something amiss in the firmware with the Kobra Max that needs a good swift kick in the C. Any thoughts or suggestions would be super appreciated.
Would it help to increase the time out seconds to say a week or so...LOL
Both cases of RSP resulted in initial errors (the PI400 had many more than the PI3). I've used unpowered hubs, powered hubs, USB 2 and 3 cables of various lengths and nothing seems to help at the start of the print.
Once it makes it past the "errors" and resends, the whole thing settles down to the send and OK and it runs for 10 hrs for my print jobs no issues at all. It's just the initial communication.
This is the printers default options at startup:
The wrong timeout is causing a buffer overflow causing the following checksum error. So that is just a sequence and is no real server issue as it also gets corrected correctly. Wait bed temp is known to be slow, so no cause for timeout.
What is your timeout setting? Normal is 3s with busy and 30s without. A week makes no sense - you want a timeout on real communciation timeouts to safe your print. So if that is the only one at the start it seems also fine to keep it. Only if you get them during print as well, check if this is because of slow long moves and increase to catch them as well.
My timeout is set for 5 seconds for this printer, 3 for all my others and the errors are only from this printer. My AnyCubic Chiron, PRUSA MK3S/MMU2S and two deltas (scratch built) don't do this at all. The Anycubic Kobra Max is a brand new printer with just introduced new motherboard 32 bit M4 processor.
I also checked for the busy as you outlined and can confirm there is none.
Repetier Server Pro has been rock solid for me since the day I started using it. Which is why I'm inclined to have my doubts about the printers firmware/hardware.
Thanks greatly for your software and support!