Pneumatic connectors/fittings clips

Pneumatic connectors/fittings clips

These pneumatic connectors/fittings clips are designed for use with the Ender3 extruder (PC4-M10, KJH04-M6 and PC4-M6). The design is parametric, allowing the clip to be adjusted to fit various pneumatic connectors. The OpenSCAD file is attached, and you can use your measurements as input.

Dimensions and measurements

Not all pneumatic connectors/fittings share the same dimensions. Check the internal diameter (in_dia) and thickness. When using the rounded_clip() module, ensure that that the round_by is more than two times smaller than the thickness (2*round_by < thickness) or the part won't render.

If the part breaks, try increasing out_dia and opening. 

Note

The rounded_clip() module utilizes the Minkowski sum transformation, and the preview rendering is slow. It's recommended to use clip() for testing and then switch to rounded_clip() before exporting to STL.

Material

Use PETG or ABS. Avoid PLA, as it may break.

Slicing

Choose a layer height so that the sum of all layers equals the thickness of the clip. I've used a 0.2mm layer height for all layers to match 1.4mm and 1.8mm thickness. Thicker layer prints are stronger and less likely to break.