On 5/18/17 1:34 PM, [email protected] wrote:
Well that generated a lot of advice and thanks for it! I think I might do it myself and go with a 1/2" hole depth and 1/4" threaded depth. I'll get some of that Aluminum Tap magic, some new taps and new drill bits. Good idea about drilling the end plates first and drilling thru to match. Between the end plate and the tube is a gasket that needs to seal pressure and moisture tight. That's why I used 5 per side.
I would make the end plate "real thick",with a machined groove for the o-ring, and use some sort of latches to hold it in place, rather than "lots 'o screws". Unless you've got a real tight space constraint. How much pressure do you have to hold? That will determine the clamping force needed on your gasket (and potentially, on your fasteners). Do you need the full 4.5x4.5" inside clear space? A 1/4-20 bolt in the corner might be a good way to go.
There's also inexpensive surplus vacuum equipment around, as well as run of the mill plumbing. Unless Steel (stainless or not) isn't an option.
Will let you know how it turns out. Cheers, Corby _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
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