About this 3D model

The extruder's PTFE tube rubs against the top glass,It's worn out. Scraps will adhere to the top glass and make it dirty. Therefore, we created a PTFE tube wear prevention part. (Design overview) 1. Initially, we designed it with one protrusion, but it rotated and failed. Designed with 3 protrusions to prevent rotation. 2. Designed based on Φ3.95 tube . If necessary, please change the scale and print at Bamboo Studio. 3. Designed to be stiff to prevent rotation. Please push it in for installation. 4. The shape is designed to be easy to install and remove. It works well on my printer. There is no problem with the filament supply, but if a problem occurs, please remove it and check.