High pressure washer shower head jet tip

The model is inspired by https://makerworld.com/en/models/1265553-shower-head-print-head-with-small-aperture, but it is original creation created from scratch.

I was unhappy with the original model, the print quality was not the best, especially the interior cavity, because of unnecessary unsupported overhangs that serve no purpose. Also the wall thickness at the threaded section is a bit too small for my taste.

This is made in OpenSCAD, and therefore is fully parametric. It is using G1/2 (1/2-inch BSPP) thread, which should be compatible with typical European shower (I have IKEA shower and it fits). The nozzle diameter is 2mm.

For maximum strength avoid PLA, maybe use PETG or stronger plastic. Print slow for good layer adhesion, with high number of wall perimeters.

WARNING: I printed this in PLA, but beware that temperature weakens the PLA plastic. My best guess is up to 40°C should be OK. PLA under load starts deforming at around 50°C. PETG should be better, maybe up to 50°C. These I just my guesses, I carry no responsibility for any possible damage or injury. Use at your own risk.

WARNING: This is model made for household shower with around 3-4 bar (44–58 PSI). Do not use this for real high-pressure washer!

WARNING: Not intended to be used on body or bodily orifices!

DISCLAIMER: this model is AI assisted, I have used LLM to help me write the OpenSCAD code.

Recommended slicer settings:

• Material: PLA could be OK, PETG is better (prefer stronger materials)

• Layer height: 0.20mm

• Perimeters: 5

• Solid layers - top: 5

• Solid layers - bottom: 5

• Infill: 30% (I like Gyroid)

• Supports: none

• Brim: none

• Orientation: thread sitting flat on the print bed

I did manage to print this without brim enabled, but I had spotless clean print bed.