Scuba Inflator Coupling O-Ring Tool

Just a simple tool that makes inserting a new O-Ring into an inflator quick coupling much easier. The needed O-Ring size is BS610 (6,75x1,78mm).

• Pull the coupling ring back as if you would when connecting a BCD and insert the pin with it's base first. The small hole in the bottom allows it to ignore the schrader valve pin. You can remove the schrader valve if you want to, but it's not needed.
• Lubricate the O-Ring and insert into the opening around the pin
• Use the Pusher to move it down the hole and to force it into it's groove
• remove both pusher and pin afterwards, done

Material and print settings don't really matter much for this one, PLA or PETG are both fine. I used 3 Walls and 10% gyroid infill.