Metric threading with inch based leadscrew

[mklotz]

Noticing recent posts mentioning 127 tooth conversion gears I thought it may be useful to show a different method using standard gears, namely a
54T pegged with a 44T giving a very close conversion for most thread lengths.
This is not my idea but taken from a site called Workshop Protects which seems to no longer exist, fortunately I took screenshots of it.

Your text in your writeup says 54:44 gear pair

54/44 = 1.2273

but the text in the picture you included seems to indicate 56/44

56/44 = 1.2727

which is, indeed, closer to the desired 1.2700000....

Was the "54" a typo or am I missing something here?

Of course, 47:37 is still a lot closer...

47/37 = 1.27027027