Inline Filament Buffer - CFS AMS Helper - Beta

Firstly, I used the connector end from PTFE Bowden Tube Connector, so credits to @firstgizmo for that portion. The main aspects of this, however, are completely unique.If you would like to support my efforts, buy me a beer. I want to keep my projects free, and your support helps me do so.https://ko-fi.com/stranulahttps://ko-fi.com/stranulaThis inline filament buffer was designed out of the desire to use retract before cutting on the K2 Plus with CFS. When we first tested this idea, we found that the retraction caused a great deal of pressure in the PTFE line, often causing it to pop out of the extruder, requiring user intervention to correct. Additionally, that connector is failing prematurely for many users, so we do not want to put any additional stress on it.This version of the inline filament buffer will allow ~20 mm of travel with minimal pressure on the line. Presently, I am limited by the length of spring that I have, but I will be making another version for a longer spring once I get those springs.Here is a slice view of the bufferThe filament enters from the right side, extruder is on the left side. When the extruder retracts, it will compress the spring , thus lengthening the overall line distance.You will need a springI am using a 0.5*6*25 mm spring from https://amzn.to/40D6JnN. You will also need 4x M3x10 screws such ashttps://amzn.to/4hYaX0khttps://amzn.to/4hWkp4nhttps://amzn.to/3EDaQZO Right now, I'm not happy with the friction connection of the PTFE and the slide, but it is working well enough. I will in the future try to find a better friction connection there. You can then edit your machine g-code in your slicer for the change filament G-code section to the followingG2 Z{z_after_toolchange + 0.4} I0.86 J0.86 P1 F10000 ; spiral lift a little from second liftG1 X0 Y245 F30000{if toolchange_count > 1}G1 E-20 F200BOX_MOVE_TO_CUTG1 E25 F200G1 E-28 F200{endif}G1 Z{z_after_toolchange} F600This will do the followingPerform spiral liftMove to cut positio