Having broken two of the 14 valves for the air blow of my REVITA hot tub hydromassage and not finding them as spare parts, they are printed in 3d.
The valve is composed of two parts with a plastic ball inside and an oring on the edge. both the oring and the ball have recovered from the broken valve but if you want they are easily found on the market. I have created the two parts that are screwed for convenience.
I printed the prototype in PLA without problems, but when I printed the final in ABS I had to put a Raft, so I put here a file with a plate needed for printing in ABS.
Smooth the dome
Once printed I passed some very thin abrasive paper on the dome.
For the valve printed in ABS I first had to remove the plate on the head, necessary for a good adhesion of the first layer
Designed with Autocad