LeeOtts/Ender3v2-Klipper-Configs

[mcu rpi]

Closed this issue · 4 comments

First I want to say THANK YOU for your Ender3v2-Klipper-Configs repository. I have an Ender 3v2 with a Sprite Pro and CR Touch installed. I was running a very stable Mainsail OS/Klipper/Klipper Screen setup until someone decided to hit the "Update All" button for me. Long story short, the current Bullseye-based version of Mainsail OS broke everything.

My backups turned out to be corrupt so I was looking at a long painful process of redoing my bed mesh and all of my tweaks. Your repo saved me a lot of time getting back to zero, but I did come across a minor issue with the printer.cfg file.

The line under the header

[mcu rpi]
serial: /tmp/klipper_host_mcu

causes a communication error between Klipper and my Creality 4.2.7 board on bootup. I was going nuts for a few hours trying to figure out why Klippy kept failing to connect. I started going through your printer.cfg file line by line and came across the mcu rpi section. Klippy was failing and logging "Mcu 'rpi': Unable to open port: [Errno 2]" so I thought just maybe that is the issue. I commented it out and BAM everything worked again.

I am by no means a coder. I know very VERY basic things. I think that line works with the input shaper code around it, so I just commented that all out as well. I haven't started messing with shaping yet but it's on my "to learn" list.

Anyway, I don't think this is a bug per se, but might be worth a note somewhere for future novices.

Sorry for the long-winded message, and thank you again for the work you put into this repo.

Hey thanks for the suggestion and sorry for the delay. Just started a new job 2 months ago and have been busy with that.

I will look into it.

Have a great day and happy printing!

Ok I figured out what is happening. This is from when I had to set up my accelerometer, and I left that code in the input shaping. I ran into this issue when setting up another Klipper ender on a new pi4 I just got, and it did exactly this. I will fix it. Thank you

I have fixed it.

Thank you so much for raising this issue. You saved me a lot of time tonight setting up another pi. I too ran into a bug after updating as well.