r/klippers

I just build a new klipper 3d printer and when i connected for the first few times but now ssh just doesn't connect anymore. I just keel getting the "connection timed out" error. The host is a pi 3b. I have tried: antenna on pi, multiple webinterfaces, puTTy, Windows powershell, and more. Did someone have a similar issue and what was your fix? Thank you...

I’m trying to install Klipper on a Creality CR-6 SE with the stock 4.5.2 mainboard. I’ve tried many different firmware filenames, but none of them resulted in a successful connection. I used a new 2 GB FAT32 SD card, copied ~/klipper/out/klipper.bin to the card root, removed the other files, disconnected USB power and the touchscreen during flashing, and power-cycled the printer afterward.

Linux detects the printer at:

text
/dev/serial/by-id/usb-1a86_USB_Serial-if00-port0

However, connecting with the Klipper console always fails with:

text==================== attempting to connect ====================
INFO:root:Starting serial connect
INFO:root:Timeout on connect
ERROR:root:Wait for identify_response
serialhdl.error: Serial connection closed

I’ve tried lots of different .bin filenames and nothing worked. On one attempt, the printer actually got stuck on the loading screen, so I had to reinstall the original firmware to recover it. After reinstalling the stock firmware, the printer boots again, but Klipper still cannot establish an MCU connection.

Could this be incorrect make menuconfig settings, an incompatible bootloader, or a faulty CR-6 mainboard? What should I check next?

I have an Ender 3 with a BL Touch, so z_hop on safe_z_home seems to be a necessity. Unfortunately, this creates a condition in which if the Z axis is already at its maximum position when homing is prompted, it will crash upwards. Of course, this can be mitigated by reducing position_max by z_hop, but then you're losing out on build volume.

It seems to me that a good solution would be to have an end-stop switch that would interrupt z_hop when triggered, but I'm not sure how to implement that.

I've found this Reddit thread in which the OP seems to be dealing with a similar, if not identical situation, but it seems to have died without a working solution.

Is this just a new Klipper feature I should be requesting? And if so, how?

I am planning to change the computer I am running Klipper on for my Ender 3. It happens that the new one came with an 8-in non-touch display (over VGA output). Can I use it as an information display, somewhat prettier than the standard E3 one? It seems that KlipperScreen is focused rather on touch control than pure information, are there other options?

Mam pytanie chcial bym użyć laptopa jako rassbery pi,pytałem czat czy jestto możliwe i potwierdził ze jest. Mam pytanie do was czy ktos już to zastosował w życie i używa.? Mam ender 3 v2 i chciał bym tak zrobić.

Maybe I'm going about this the wrong way, but if I am, I'm sure someone will let me know.

Basically, I'm trying to use Cura to print on Klipper, and what I would like to do in the START_PRINT macro is add a line to read the z_offset out of Printer.cfg, and then apply it to the printer in the START_PRINT Macro. Otherwise, it just scrapes the heck out of the bed.

Any suggestions?

Ender 3 v3 se + raspberry pi 5 owner here. Im interested in some mmus but it requires klipper, i used klipper before with the ivan rio config but it was bad. So now im asking if the bootuz-dinamon config is good, are the motor currents right, functions right? Would be appreciated to hear answers and suggestions.

I am having a hard time getting sensor less homing to work properly with 5160 drivers on my dual motor y axis. I have it working, just not consistently and with a few hiccups. I have a fairly heavy gantry and I can't get away with lowering current too far or I start getting skipped steps, followed by some binding from the sides getting out of sync. It seems I have a very narrow window for sgt adjustment, where 0 moves maybe 1mm before calling it home and 2 won't trigger at home. I tried searching, is there a guide somewhere that I can consult to see what I may be doing wrong?

Now, I'm conflicted. Should I follow Mainsail's recommendation of using Klipper?

https://preview.redd.it/uh6r0i9tmejh1.png?width=773&format=png&auto=webp&s=fa0345f60260d931c4f3568989ac0a6252e9711d

Or should I follow Klipper's, to use Marlin.

https://preview.redd.it/agr3zqwpmejh1.png?width=1075&format=png&auto=webp&s=b9b03f92db91dae5db1621a16b606b3c4eca455d

I mean, Mainsail's makes sense but Klippers docs seems to be unsure about it, kinda like saying, "yeah, that works too".

I am using a raspberry pi 3b+ running Mainsail on 32 bit. The raspberry pi seems to restart randomly. This freezes the printer and disconnects from mainsail. I just switched from 64 to 32 bit and got a new power supply for it. Does anyone know how to fix this?

just curious on peoples opinions. any obvious benefits/drawbacks to either?

TLDR: I just wanna run klipper but I’m pretty certain the universe is sabotaging me.

EDIT: Just wanted to say thank you to everyone in here pointing me in the right directions! I was really expecting to give a few people some chuckles, but you folks have addressed it as a problem that needs fixing. I should have expected no less. As of right now I have renewed enthusiasm for the S7 option and ill update if i can get it to work. If not, back to the thinkpad.

So I’m not a big computer guy but I’m generally handy enough to understand processes and how to get done what I need to get done. I have a cheap ender3 pro I picked up a year or two ago for super cheap and got it running acceptably.

Recently I’ve been getting the itch to build a new printer, but definitely don’t have the funds, so I’ve been looking for cheap functional ways to make it work better/faster and that brings me to wanting to try out klipper.

Now, remember back to the no funds bit. I don’t have a raspberry pi and don’t really want to buy one at this time, so Ive gone down the rabbit hole of using an android phone for the host. I’ve had an old galaxy s7 laying around forever in a junk drawer. Read through some guides and it seems pretty straightforward. As I go to download one of the zip files I noticed that my build number is off by 1 digit from ones listed. Minor digging reveals to me that as it’s a galaxy from sprint, the secure boot is locked. Looks like there’s a way to get around it, but at this point I just want to go to bed and I’ll revisit in the morning.

In the morning I see the perfect solution. I also have an old Microsoft Surface RT! Following all of the info to install Linux I get it reset to factory and all I need is a USB hub to jailbreak and run the raspi os that was demonstrated. Everywhere to buy one is closed so I call it a night. Continuing to read on the topic, my blood pressure spikes. I realize that I have a Surface 2 RT, which you guessed it, is the only model not fully capable of running Linux (problem with the usb not working once Linux is installed. Way above my understanding. Kind of important to be able to connect to the printer though).

If you don’t laugh it’s just sad.

I have an old thinkpad laying around too. Might give that a shot. I’m sure I’ll find out that it’s the only
Model thinkpad that had a self destruct feature when trying to use a different OS

hope my pain brings you all some entertainment

These don't seem like the right files

Hi all! After a long while of neglect, I finally decided to attempt once again to klipperize my Ender 3 (and maybe a few others). However, the new Raspberry Pi Imager doesn't seem to flash the same Mainsail files I have seen in the past or in the many tutorials I have watched, but instead, this list of firmware files from the Raspberry Pi Github.

https://github.com/raspberrypi/firmware/tree/master/boot

Between two SD cards, I haven't been able to find a system.cfg file anywhere. What am I doing wrong? Any help is greatly appreciated!

https://preview.redd.it/zlduyfeg5eih1.png?width=384&format=png&auto=webp&s=3af73f6a7499e2e0ec5f86576230b93f2a00ce12

I installed Klipper on my RPi CM4. Since the install, I kept losing connection to Klipper at random. I found out that Sonar prevents this. I have uninstalled it and reinstalled it, and still it shows as dead. What can I do to fix this? Or what is the root of the cause?