[time-nuts] Rakon HSO-14

Bob kb8tq kb8tq at n1k.org
Sun Feb 4 02:26:29 UTC 2018


Hi

Unfortunately ( at the rates you must use) the “blast it with a fire hose” approach
is not very fast…..

Bob

> On Feb 3, 2018, at 8:15 PM, Bruce Griffiths <bruce.griffiths at xtra.co.nz> wrote:
> 
> Fluid jet polishing perhaps?
> 
> At least on fused quartz and optical glass there is no associated subsurface damage.
> 
> Bruce
> 
> On 04 February 2018 at 14:05 Bob kb8tq <kb8tq at n1k.org> wrote:
> 
> Hi
> 
> If you try “normal” machining techniques on a resonator, you are very
> likely to create micro cracks in the material. Those are *really* bad for
> aging and a few other issues ….. Much of the normal production flow of the
> quartz is designed to keep the processes like sawing far enough away
> from the “end product” that more gentle techniques can be used to remove
> the (possibly) damaged material.
> 
> Since the slots are pretty darn small, there isn’t a lot of room for this and that
> to be done when making them. There may well be better ways to do the
> work today than back 20 or 30 years ago. It would still take a *lot* of effort
> to validate a process.
> 
> Bob
> 
> On Feb 3, 2018, at 7:24 PM, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:
> 
> --------
> In message <0f9a9acc-4cdf-780f-e633-6162622641e3 at earthlink.net>, jimlux writes:
> 
> [1] Surprising to me is that modern dentists are highly kitted for
> CNC-ing very hard ceramic materials at high precision.
> 
> But, small "tooth sized" pieces - how big is your crystal.
> 
> Well, they appearantly make a mouth-full at a time, so that is
> covered...
> 
> I don't think the dentist machines are precise enough though,
> as I understood it, the state-of-the-art stuff has built in
> laser-interferrometers etc.
> 
> --
> Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG | TCP/IP since RFC 956
> FreeBSD committer | BSD since 4.3-tahoe
> Never attribute to malice what can adequately be explained by incompetence.
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts <https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts>
> and follow the instructions there.
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts <https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts>
> and follow the instructions there.
> 




More information about the Time-nuts_lists.febo.com mailing list