>>>> As far as the spacers, those could be molded in Ceramic Clay and fired >>>> in a Kiln. The mold could be made in Silicon or similar, again the >>>> prototype could be made on a 3D printer, or just turned on a lathe. >>> There are very small (1...2mm estimated) glass beads that are used for >>> art and such, they can be bought in art supplies shops. >> Perhaps - 5mm dia 5mm long and stackable >> http://uk.farnell.com/multicomp/cb3/spacer-ceramic-stand-off-pk50/dp/8919275 > If I understand this site right, those are 1.8mm long: > http://www.artbeads.com/sb18-0131.html
I talked to two outfits, Du-Co ceramics and Superior Technical Ceramics. Du-Co didn't have a stock part, so they quoted me a custom run. It was brutal (I can't find their email, so I don't have exact figures). Superior Technical Ceramics has ceramic washers as stock parts. Their 2-56 washer was $1.40 apiece and their 0-80 washer was $1.35 apiece with a 4-week lead time when buying a couple thousand washers at a time. They also offer ceramic nuts and bolts, but they're even more expensive, unsurpisingly (a 1/2" long 2-56 ceramic bolt was $9 apiece when buying 200 at a time). It's not hard to find small mica rings, maybe they would be more cost effective, even if you had to stack them to get the thickness you need. - John -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
