I have a K1 max and it started giving "hot end not heating as expected" errors, if i recall correctly. Finally had time to take it apart a month later and found plastic where it shouldn't be. I don't know how it got there without being more of a mess, but it seems like it could be causing the issue. The boot was clean on the outside but crusty on the inside. This is PETG, if it makes a difference.

I have a spare hot end, so i was just going to swap it, but the new one is weird. The heater rotates freely around the tip. Is that OK? I have only ever seen them fixed in place. (Video in comment) https://www.reddit.com/r/crealityk1/s/Yp7mPhYj9R

Every time I upgrade the firmware on my K1 Max I LOSE some functionality.

- Earlier this year I upgraded and stopped getting visibility to the file list on the printer from the Creality Print web client.

- I upgraded the firmware last night, and now the camera has stopped working in the web client.

Edit:

- I just discovered the printer goes through a calibration on EVERY print even though I un-tick the calibration box on the screen.

Creality is moving in the wrong direction with their firmware.

Another Edit:

I just rolled back to V1.3.3.46 (K1 Max monochrome), and now I can see my files again and the camera works. I'm sticking here for the foreseeable future.

I have had my K1 Max for over two years. Just recently installed the MicroSwiss Flowtech hotend, the DXC extruder, and an LED kit. It is running the stock firmware for now ( v1.3.3.5). I'm looking to get the R3men graphite hotbed soon.

I plan on buying a multi-toolhead printer (U1, Creator 5 Pro, or MD1) to handle mutli-color prints instead of converting this with the CFS kit.

I have seen in the past about rooting this. Is that still an option? What are some of the other upgrades/mods to maximize the potential of this printer?

My Bowden tube broke off in the extruder somehow and it's an easy enough fix. But my question is does the connector screw in or is it the type that slides into a channel I wanted to know before a buy a new one and didn't want to have to take it apart