Gear setting for metric threads on the 11" Standard Modem Lathe
Does anyone have a quick solution for the most used metric threads with minimum gear addition to the Standard Modern lathe model 2000"
It has a quick change gear box with capability from 1 to 164 TPI's and three gears 2-48's and one 83 teeth.
I remember reading something on a very old issue of H Shop Machinist about one or two more gears to make very close approximation for small jobs or quick repairs.
Insignificant deviation on long runs (maybe like and inch or so). I do not have the magazines with me now.
Are the magazines somewhere on line, or at least the topic index? I have mostly every one from 1983 to 2002, then quit when I moved.
Thanks, Wilson G.
Have you contacted Standard-Modern?
Do a search here under "Metric Threading", you should find quite a bit.
One problem with this is that any one gear setup will give only a few metric threads with an imperial QCGB. It generally takes about four to six gear changes to get the standard range of metric pitches. And even then, the first one you need may be non-standard! So be sure that your setup can provide the pitches you want.
It seems to me that the manufacturers recommended gearing is generally hard to improve on although there are a lot of other options.