PTFE tube connector for Creality K1 series, K1, K1C

UPDATE 06.04.2025: I just added version 3 (v3) to the print files. Please check the length of the pre-installed tube at the filament sensor before printing. If this tube has a length of 20 mm or less you should use v3!

The PTFE tube connector has been designed to perfectly be attached to the backside honeycomb structure of the K1 series and the standard filament sensor. It allows you to connect any 4mm (outer diameter) PTFE tube for 1,75 mm filament, e.g. from your Space Pi Filament Dryer, directly to your printer without using any pneumatic connectors. This is particularly practical because not everyone has the appropriate connectors at home. This connector can be easily printed and fitted without tools.The connector has been designed to be printed using PLA. Other materials can affect the dimensions of the connector, which can result in the connector not fitting into the holder or the hole for the filament guide being too small. 

Advantages 
The connector can be permanently attached to your printer and can be used with a PTFE tube or without. No other parts or tools necessary.