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The lathe came without any change wheels or the bracket to attach them, and one of the odd things about the lathe is the lead screw runs back to front!
So winding the handle away from you winds the slide to the right.
Weird, but it simplifies the changewheel arrangement ... no need for an extra gear to correct the rotation.
I bought a set of 7 gears from Ebay which happened to be the right bore, only cost me about £35 which is what a set of new plastic (spits on floor) ones would have cost.
I worked out the geometry by looking at pictures of my lathe on't web and making a try out from 1/4 MDF sheet... easy to cut (but it doesn't weld;) ).

The bits were fabricated from chuncks of carefully selected stuff from my junk box .
My welding was pretty rough to start with, but I got some practice in, and while I was at it I added some strengthening to the motor support bracket, which has stopped a good deal of vibration.
The pics pretty much tell the story. (see the MDF try out below)


I also bought 3 other gears of the same DP (diametral pitch) as the back gears which give a reduced speed.
I bought them on the off chance that 2 might work out to run on the same centres as the existing back gears. It didn't work out, but I can use one of them to replace one of the gears with stripped teeth, I'll still need to buy one new gear, but over all I diddn't loose on the deal.
That will be the next step of the refurb. Then I'll make a cover for the gears.
I've leared a lot making these bits and using the lathe...
Main thing I've learned is...
clonk
clonk
clonk
Is a bad thing 
Del
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