3DChameleon Installation for the Creality K1 and K1 Max

These are the files needed to mount the 3DChameleon onto the Creality K1 and K1 Max printers.  Also included is the profile for the K1 (K1 Max just needs the distances and build plate size adjusted.)

To install:

1. Remove the front left screw from the right rear motor (looking from the front of the printer.)  Then, install the switch onto the switch mount using the 2 2.5mm x 6mm screws in the 3DChameleon kit. Use a M3x16 screw to attach the switch mount to the stepper motor with the switch under the mount and to the left of the stepper motor.
2. Turn around the printer. Attach the 3DChamelelon to the back mount replacing the 4 center screws with the 35mm screws included in the kit.  Attach the electronics to the rear mount as well using the same screws and T-Nuts that are holding the electronics in the included case, but flipping them over so that the T-Nut is on the inside of the electronics and the 3mm screw head is on the bottom of the back plate.
3. Use two M3x12 or M3x16 screws to affix the rear back plate to the K1 (or Max) with the PTFE tubes towards the middle (as in the picture.)
4. Remove the stock PTFE Tube from the extruder (THIS IS IMPORTANT! The stock PTFE tube has an inner diameter that is too large and will cause jamming when the 3DChameleon tries to load.  The 3DChameleon's PTFE tubes are only 2.0mm inner diameter.) Replace it with a section of PTFE tube so that it reaches the back of the printer.
5. Attach the Y adapter to the new PTFE tube.
6. Connect the switch to the electronics with the red wire on the top and the green wire on the bottom.  (Also, confirm the selector motor (top) is connected to the top stepper motor connection and likewise, the extruder is connected to the bottom connection.
7. You will need to adapt the small 2.0mm piece of PTFE tubing to the extruder… the stock 2.5mm will not allow for automatic loading, as the ID of the tube is 2.5mm, and the filament can (will) catch on the ledge as it is loading.  Using this part (https://www.printables.com/model/473551-3dchameleon-ptfe-coupler) you can connect the 2.5mm to the included 2.0mm PTFE tube.  To maintain timing, make sure the connected tubes are the same length as the original tube.
8. From there, you can follow the normal testing procedure, the hardware installation is complete.

I've attached a PDF document of the steps necessary to mount it to the K1 and the K1 Max.

If you want to test with OrcaSlicer, you can use these profiles but you'll need to update the Tool Change GCode's [temperature] to OrcaSlicer's [nozzle_temperature] variable name.  Other than that, just copy all the settings over.  You can use a tool, like this one: https://github.com/theophile/SuperSlicer_to_Orca_scripts to convert your existing PrusaSlicer profiles over to OrcaSlicer.

It's important that you do not use the GCode Generator on the website for the K1 (or any Klipper based printer)… as there are specific commands that it does not implement that Klipper based printers need.  You can use it as a model to help generate the code, but you'd need to take the modifications we've made to this profile to actually build the tool change gcode, along with the start/end gcode from it for it to actually work.

The original source files in Tinkercad are right here: https://www.tinkercad.com/things/fg7LUopYl5s-creality-k1-mounting-plates