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Stan Binns	11/05/2018 15:34:36
2 forum posts	Hi I have just purchased a old Myford ML7 Lathe am just getting used to it , going ok up to now . I was looking inside the Gear cover at the end and there is a list of gears to choose for what ever TPI etc that you require , now I understand the Gear change , but I am a little puzzled at the end column heading " Lead Screw" , now I know what the lead screw is but I have no idea what the numbers down the column mean ie , 20,45,50,55,60,65,70,75 . Am I missing something here ! . cheers Stan.b
Rick Kirkland 1	11/05/2018 15:58:13
175 forum posts	The numbers refer to the teeth carried by each gear in the train. The last gear (75t) is the one which you fit on the leadscew.
Adrian 2	11/05/2018 16:05:18
104 forum posts 19 photos	Stan ,the lead screw column shows the change wheels required to complete the gear train selected. The numbers refer to the number of teeth on the change wheel to be fitted to the lead screw. Hope that helps. Adrian .
Stan Binns	11/05/2018 16:14:40
2 forum posts	Ah ok , I thought the Lead screw gear was fixed , got it now . tks Cheers Stan.b
Hopper	12/05/2018 10:55:53
7881 forum posts 397 photos	It might help you to get yourself a copy of Martin Cleeve's book "Screwcutting in the Lathe". It's one of the Workshop Practice series so cheap as chips to buy. It starts at beginner level and goes through to more than you will ever want to know and is all based on Myford lathes. Well worth a look.

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