TABLE OF CONTENTS


Motion system (replacing bearing for example)

K1/ K1 Max motion systems sometimes can require replacement due to for example printhead bearing damages. But after dissassembly we noticed Creality on current revisions of the K1/ K1 Max assembled the motion system using epoxy in certain points making it near impossible to replace anything on it without replacing the entire motion system + toolhead assembly. 

EDIT: This seems to no longer be the case with newer revisions.


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Hotend attachment to toolhead

When a hotend needs replacement but the long hotend screws facing up going through the heatsink are damaged/ stripped this can be problematic. This is because although there are other screws holding the heatsink to the printhead assembly, those hotend screws also pass through the heatsink and into threads in the printhead assembly. There is no other way to remove the hotend + heatsink without damage, the long hotend screws have to be loosened. 


We however have managed to successfully remove stripped screws using a heatgun to heat up the screw and surrounding metal to expand, and some glue to attach the screwdriver to the screwhead. Recommended to have 2 people doing this, one holding the hotgun.

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Temporary post-repair freeze phenomenon

K1 / K1 Max sometimes freeze after repairs involving detaching and reattaching the large 2x2 toolhead board connector. This could be due to the fact there is nothing stopping it from being inserted incorrectly (for example rotated 90 degrees) due to the design of the connector.


Symptoms are:

- Screen lighting up on boot with the Creality logo animated, but will never reach the menu 

- dead silent, no beep or fans on


Troubleshooting by tinkering with different ways of inserting the connector and repeatedly turning the machine off and on eventually revived both machines to their normal state without firmware or new parts required.