Moving O-ring Muzzle For Large Slider Shafts (Inspired By The Seatec Evo-Air)

Diving Gecko said:

I have indeed checked those, but from my initial searches it looked like they tend to max out at 8mm. I only found one in 8.5mm but it was in the UK and not cheap. I might check again.
Dima said they used to use them in the old days before he made his own seals.

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Diving Gecko said:

DIY Vacuum Cuff (Yes, A Thread Drift...)
I am allowing myself a derail of my own thread as, at this stage, the following does not yet deserve its own thread.
But here's a quick sketch of how a muzzle with a home cast PU cuff could look (as mentioned, I could 3D print molds for cuffs):
View attachment 55044

The inspiration comes from the STC cuffs and oil seals and the muzzle design could be simplified a bit more. Perhaps with the retainer lip being only on the inside of the seal:
View attachment 55046

So far, the seal itself is optimized for 8-9mm shafts. And if I went forward with this, I would work on trying to make the "moving" part of the seal as small as possible to reduce how much rubber can be compressed onto the shaft.
The design in this sketch weighs about 44g and is 58mm long. That's a few grams lighter than the Vuoto and a full cm shorter.

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