If you need a vacuum feedthrough use a spark plug. -Jerry
> On Aug 29, 2014, at 1:29 AM, Nathan McCorkle <[email protected]> wrote: > > looking to make a vacuum container wire feed-through, thinking I'll > drill a hole into an existing aluminum blocking plate (maybe with a > chamfer/angle to it), shove some piano wire through the stopper, then > shove that into the blocking plate and pump down. Maybe I'd extend the > existing blocking-plate screws and screw down a clamp on the stopper. > > But I can't find a supplier for these. The closest I've come is this > list (personally I think I'd pick the sphere out of any of these, as > it seems like it'd seat more like a stopper in the hole): > $5.46 > 3/4" inch > Viton Fluoroelastomer Sphere, 70A Durometer, Precision Ground Finish, > No Backing, Black, Inch > http://www.amazonsupply.com/dp/B00CCGYHZO?ref_=sr_1_9_txt > > $45.62 > 1 sq ft of 1/8" inch sheeting > http://www.amazonsupply.com/dp/B0075ZN4RE?ref_=sr_1_2_txt > > $7.09 > Stopper that is questionable as to whether holes come as-purchased: > http://www.amazon.com/Universal-Stopper-Viton-Synthetic-Rubber/dp/B0011Z90P4/ref=sr_1_1?ie=UTF8&qid=1406519692&sr=8-1&keywords=viton+stopper > > $24.90 > VITON RUBBER SHEET 1/8" THICK 6" X 6" SQUARE ACID CHEMICAL HIGH TEMP > http://www.ebay.com/itm/VITON-RUBBER-SHEET-1-8-THICK-6-X-6-SQUARE-ACID-CHEMICAL-HIGH-TEMP-/200891967372?pt=LH_DefaultDomain_0&hash=item2ec618278c > > $6.50 > 1 Gasket 2in Disc 1/16 Thick Replacement Viton Rubber MadeBy > ElisGeneralStoreLLC > http://www.ebay.com/itm/1-Gasket-2in-Disc-1-16-Thick-Replacement-Viton-Rubber-MadeBy-ElisGeneralStoreLLC-/251595451636?pt=LH_DefaultDomain_0&hash=item3a9441ecf4 > > (I also found some someone on youtube or something claiming to have > made some viton stoppers in a small batch and had some for sale, but I > never > heard back from them) > > > > -- > -Nathan > _______________________________________________ > dorkbotpdx-blabber mailing list > [email protected] > http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber _______________________________________________ dorkbotpdx-blabber mailing list [email protected] http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber
