Hello, from your photograph of the set up for cutting the 2mm pitch thread, I can see the arrangement for the 40T and 20T gears but am unsure how you have fitted in the 37/47 transposers!. Could you please explain how these other 2 gears fit in to a bit of a novice like myself !. Perhaps a drawing with the teeth numbers written on the gears.
Many thanks, Roger Williams.
Many thanks, Roger Williams.