[klondike98]

Thanks Arran, that's the approach I took. My first metal prototype is seen here. It doesn't quite do the job as its hitting something as it travels along the dial face but with a few more iterations I'll have something that works. At the moment my dial string is slipping as well so I have some adjusting to do on that but all in all I think it will work out fine in the end.

[Image: https://www.dropbox.com/scl/fi/fbas0zihl...wdju&raw=1]