In this episode I’m turning this brass piece.
Into a train bridge So making the train bridge of this watch may
seem pretty straight forward process, but the real challenge lies in boring these holes
in their exact location, and when I say exact, I literally mean hair widths of error is unacceptable. So to get the alignment as exact as possible,
I’m using the Skoal Centering scope. Which is this tool right here. There are higher
quality and more expensive scopes out there, but his one definitely does the job. I purchased this tool thinking it was the
be all and end all. But in hindsight the same results can be achieved with a high powered
loupe with a cross hair reference. Or a wobble stick. These methods are described in detail the
book by George Daniels titled – watchmaking. Also Jere over at adventures in watchmaking
who is the pocket watch described in this book is using the wobble stick method and
explains it a bit more in detail. I have put the link for this book and Jere’s website
in the description below. So now that I’ve finished locating all the
holes on my workpiece. I need to turn the recesses in the brass. Before I can do that
I need to remove the original train bridge off the brass, by hitting with some heat. And then to get rid of the excess super glue. Once they’ve cooled down i’m going to drop them in some…..(acetone) I completed recessing the underside of the
train bridge, I took a measurement and it read 1.26mm and the original recess in 1.29mm.
So I have an extra 0.03mm for when I decorate the movement.
Now it is time to create the square shoulders for the screws to sit in. So this tool is
known as a d-bit , it is held in the tailstock and just plunged straight into the workpiece.
I’ve just ordered a new set of needle files, so I’m going to wait till they arrive before
I give the train its’ final shape and alignment pins.
It is now time to cut out the rough shape of the train bridge. I’m not the greatest
with the jewellers saw, so I expect a lot of broken .. (break blade) So here is the train bridge on the movement,
obviously it’s not finished there is a lot of work to do. I still need to insert the
alignment pins, shape the piece, final finishing, jewelling, bevelling. Still a long way to
go, but I’m happy with where I am right now. So I’m going to wrap it up here, it’s
been a pretty productive week. It’s now Saturday morning, I’m going to finish editing
and upload it. And keep the weekends as strictly family time. The vlog and the work that I’m
doing is definitely a after 9pm Monday to Friday type of arrangement.
I just want to thank you all very much for taking the time out of your day to watch these
videos, for subscribing, commenting, giving me feedback here or on Facebook or Instagram
. It’s been super positive, very encouraging. Thank you all, and hope that you find these
videos entertaining, educational and hopefully inspire you to go out and conquer whatever
it is that you want to do to. And as always, thanks for watching. If you
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