Superb (bis) ! Thanks for posting this.
Can I ask you a few questions ?
* What material did you use for the anchor pallets ?
* Did you use a sort of device (using the contol-circles) for grinding them ?
* You have (i.m.o.) a special longitudinal effect on the frame plates...
As you saw now about 44 members have read your question and no answers till now...
I think, but may be wrong, that your question has a too wide spectrum and so cannot be answered in a simple and compact way.
Let me “translate” your question if the message was placed on an...
First of all: I presume you do -not- want to buy a commercial available one e.g.:
It's clear that these clocks have a simple electronic clock-mechanism ($ 3) behind the dial. Ready to go ....
I've disassembled several aviation clocks in my former life.. as...
To avoid misunderstanding:
My remark was -not- to criticize this procedure, but caused by the fact that I thought (to my surprise) that the dividing was done without proper mechanical fixes.
Happy to hear now that the size of the first tooth was the same as the last+1 ….;)
I (personally) don' expect that many will do this, because most mills have tension-levers to securely fasten the table/bed.
But if that (common) option is not available, this seems to be a good solution.
I have asked my friend, building a Riefler F type.
Here his answer, may be this can help another little bit ?
So I quote his answer:
It was quite a search, but I think I now know what it is. And then I concentrate entirely on the bob that John is talking about: the...
Well, last resort here....
I presume you also know the fabulous book-series: Präzisionspendeluhren (PPU) von Juergen Ermert.
I saw there that the author (above) can be reached easily:Juergen.Ermert@PPU-Buch.de
I should think, that he should ….:-) know the answer.
A friend of mine, is building a Riefler.
He possesses the book from Dieter Riefler about his grandfather: Sigmund Riefler.
Do you know the contents of this book ?
If the answer is "no" than I can ask him if... there is information in it.
As far as I can see here in this bob there are 2 nuts in the middle, which can probably adjusted by small pins (?) in them, just as is the case in small lathe chucks.
I can also imagine that after the adjusting by hand (and polishing/cleaning thereafter) the bob is never touched...