USB serial connection 3D Printer

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Reanalyse

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#312538 25-Apr-2024 14:17

Hi all,

I am attempting to connect a 3D printer to Klipper/Octoprint running on a HP T630 thin client, Debian base distro "DietPi".

I can see the printer when using the LSUSB command (comes up as "Bus 001 Device 009 ID 1a86:7523 Qin Heng Electronics CH34 Serial Convertor").

But can not seem to get Klipper (or even Octoprint on Auto) to see this device- and the "ls /dev/serial/by-path/*" finds no devices with "No such file or directory".

Has anyone any thoughts on what I am missing.

Thanks and Regards

neb

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#3223175 26-Apr-2024 20:06

My guess is it's one of a million dodgy CH340 clones. You could try Zadig, the universal USB driver installer, to see if something in there can work with it.

Edited to add: Just realised that that comment isn't very descriptive, what I meant was see if Zadig can install something that'll talk to it, see what that is, then find the equivalent for Linux.

michaelmurfy

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#3223179 26-Apr-2024 20:38

Just FYI Klipper is completely different firmware compared to Marlin. It would also help to explain what printer you’ve got and if you’ve actually flashed it with custom firmware also. Normally you wouldn’t use Octoprint with Klipper, you only would do this with Marlin and other “generic” printers.

Also just use base Debian 12 with Kiauh - https://github.com/dw-0/kiauh as I’m not sure what DietPi have potentially modified in their distribution.

Michael Murphy | https://murfy.nz
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Reanalyse

398 posts

Ultimate Geek
+1 received by user: 311

#3223353 27-Apr-2024 13:47

michaelmurfy:

Just FYI Klipper is completely different firmware compared to Marlin. It would also help to explain what printer you’ve got and if you’ve actually flashed it with custom firmware also. Normally you wouldn’t use Octoprint with Klipper, you only would do this with Marlin and other “generic” printers.

Also just use base Debian 12 with Kiauh - https://github.com/dw-0/kiauh as I’m not sure what DietPi have potentially modified in their distribution.

Thanks @neb and @michaelmurfy for your help.

What I am doing (don't laugh) is play with a very old Duplicator i3+ that was purchased off a fellow geekzoner, and trying to "klipperise" it .

Purpose was not so much to actually achieve massive performance gains -although it can be done according to some youtube videos - but to thoroughly explore the process before attempting the same on my more expensive 3D printers. If it all turns to custard and I fry the test 3D printer, there would not be so much loss.

I am working down the track of new linux drivers as detailed in https://learn.sparkfun.com/tutorials/how-to-install-ch340-drivers/linux . Kiauh worked well with the dietpi distro.

Learning a lot in the process

Thanks