Parametric first stage scuba regulator tool

Notice: this parametric version is currently *untested*; expect to do some tuning.

Description

Parametric version of my Apeks first stage service tool. Used to remove the environmental cap and clamp on first stage regulators.

Click the Customize button to generate your model.

I used the fixed version https://makerworld.com/en/models/2854918-apeks-first-stage-scuba-regulator-tool#profileId-3184992 to successfully unscrew my three seized regulators that had been sitting in storage for 7, 9 and 12 years since last service.

• Holds the regulator securely in a snug fit
• Can be screwed down to a bench with basic wood screws
• Uses a 4mm drill bit as the pin
• Tight fit around the drill bit, made with teardrop holes
• Tested on two seized DS4 regulators and one seized DST regulator

The parametric version can be adapted to any similar first stage. Hopefully I can collect tested parameters for different regulator models in this description.

Print instructions:

• I tested with PLA, but stronger materials may be preferable
• Use lots of perimeter walls (8+)
• Dense infill (I used cubic 75%).

Usage

• print
• mount ("vice" or “screw” version)
• Use a drill-bit (nominally 4mm, parameterizable) as a pin in the bottom tear-drop shaped
• Use a first stage handle (rod that threads into low-pressure or high-pressure ports) to loosen the environmental cap (don't take it off yet)
  • Mine were seized so I had to wack the handle with my palm to get them loose
• Repeat with the pin in the upper hole for the clamp

Tested parameters