Re: Synchronome contacts pitted
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If you can find some, glass capillary tubing will do the trick. I made one a few years ago, but I've no idea where the glass tube is now!
Failing that, a piece of silver steel of the correct diameter can easily be drilled. It could then be made dead hard by heating it red hot and quenching in cold water. It should then be polished - I made a gathering "jewel" this way a few years ago as a temporary measure, and it's still there doing a good job.
Otherwise, I agree with everything John said about adjustment and running dry. The effective weight of the glass roller can be varied by winding fine wire around the counterbalancing arm.
Good luck, and welcome to the club!
From: Andrew Nahum <andrew.nahum@...>
Sent: Mon, 22 Feb 2021 19:16
Subject: Re: [synchronomeelectricclock] Synchronome contacts pitted
A supply for the glass rollers for the ‘back stop’ or detent that runs on the count wheel would be great. Has anyone any news on a source for them? I think I recall Jan Wright produced some a few years ago and they all sold out like hot cakes. I am currently using a delrin one kindly made by a friend but I fancy glass would have the lowest friction in that application.
On 18 Feb 2021, at 20:46, Stephen Hibbs <oldtimemachines@...> wrote: