Adapter from Pado PureWave massager to Toloco massage gun

I made an adapter to allow attachments for our Pado PureWave massager to fit our Toloco massage gun. The PureWave battery died and I tried to replace it, but broke it, so bought new massage gun. I like the big rubber massage attachment from the old PureWave better, so wanted to attach it to new gun.

I used one of the rubber grommets from one of the unused Toloco attachments for my adapter as well as the rubber gasket under the threads from the PureWave.

Thread size is weird, so had to make a custom thread size.

I had one of these crack at the threads after a month of use, so I bumped it up to 100% infill to see how that works.  I use PLA+.  I haven't tried PETG, nylon, PC or other materials, which might work better for this application.

I used supports for the overhang and variable layer height with finer layers for threads.

Designed in Fusion 360.