About this 3D model
You need a PCM4-10 connector for the ptfe. It Includes Bear style or Ender3 Style (2020 Profile) and Mk3s+ Style. It´s recomended to use ptfe with 3mm inner for lower friction. It´s recomended my other design for platsa spool With 608zz bearing. Platsa Holder with 608zz https://makerworld.com/en/models/186188#profileId-204942