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By RichardHarris123 · Posted
Why cut the paper, cut a square around the image and grind to it. -
By Neverenoughwatches · Posted
I did try that last time Rich , i traced the image from the Bestfit book which is the actual size. But its more difficut to cut the shape from paper than it is to grind the steel to shape. This way is pretty easy and the final shaping is done when fitting the part. There are a couple of things i will do differently next time, clamping the 2 pieces together with a drill press will help to hold while scribing the shape in. This was a bit tricky having only one hole, if using the pins and cork the drill size needs to match the pin diameter so there is no movement at all from the template. This movement hasn't finished frying me yet, damaged thread in the plate crown wheel hole and two rubbed in cracked jewels, thats gonna be much more fun. -
By Neverenoughwatches · Posted
👍 Whats not to follow OH ? You're every inch a pro and a true gent, i always enjoy reading your answers even some of the clock stuff that i dont have a clue about. -
By RichardHarris123 · Posted
Could you print the image either enlarged or reduced to the same size as the actual part and then glue it to the steel. -
By Neverenoughwatches · Posted
Next is to drill the screwhole this then provides an anchor point so the bridge doesnt slip around while scribing the shape. A cork lid, a pin and a piece of gaffer tape ( 😅 ) keeps it all in place. The hole is measured from the broken part using a hand measuring gauge. Mark the hole, punch it and drill it off to size. The awkward bit is working out where the jumper should be and the detent positions. I remember watching a youtuber a while back do this with dividers, so i dug out my old school compasses and improvised a little. This bridge only has one hole and to find the detent positions you need two points of reference, so i just worked the second point from one of the corners, hopefully its near enough. Then scribe in the jumper using the two detent positions ( wind and time set ) that were marked and a big picture of the complete spring to look at that helps to give you a feel of where the jumper should be.
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