Which Change Gears to Get?

[VicHobbyGuy]

I found that this article made a lot of sense:
https://www.arceurotrade.co.uk/reviews/MEW204-P31_P36-Thread-Cutting.pdf

 

[Larry$]

The reason 100/127 gears are used to convert from inch to metric is there are 25.4 mm to the inch 127*2=254! Some small lathes don't have room for a 127 tooth gear so they use something that comes very close and is smaller. There isn't a lot of force on change gears so dense plastic ones should last a long time for hobby use. And you can always print another one.
I wouldn't worry about getting some exact feed match for turning. Experiment and see what works for you. I tend to hog material until I'm within .020± Then power feed rather slow for a good finish dividing the remaining into 2 = passes. The first pass confirms I'm going to get the finish I want and will be reproduced on the last pass. Gives me a chance to make a correction if needed.

 

[Cadillac STS]

Here are the 3D printer files for an Enco lathe change gears. Need to be sure it is the same lathe and check thiniverse again for free file

Change gears (imperial) for EMCO compact 5 lathe by Stemer114

3D-printed change gears for EMCO Compact 5 latheEMCO compact 5 feed mechanism comes with 6 change gears(for common metric threads): 20, 25, 50 and 3x 60 teethFor uncommon threads or imperial threads additional change gears are needed:26, 30, 34, 35, 36, 72 and 40 teethWhile you can buy them from...

www.thingiverse.com

 

[dabear3428]

Here are the 3D printer files for an Enco lathe change gears. Need to be sure it is the same lathe and check thiniverse again for free file

Change gears (imperial) for EMCO compact 5 lathe by Stemer114

3D-printed change gears for EMCO Compact 5 latheEMCO compact 5 feed mechanism comes with 6 change gears(for common metric threads): 20, 25, 50 and 3x 60 teethFor uncommon threads or imperial threads additional change gears are needed:26, 30, 34, 35, 36, 72 and 40 teethWhile you can buy them from...

www.thingiverse.com

IMO printed change gears are the way to go and maybe think about an ELS for the future.
i have steel gears and most all of the ones i need but plan to 3D print anything i need in the future and or add an ELS.

 

[WobblyHand]

Been really pleased with my ELS. Has saved a lot of "hassle" due to gear changing and clean up. Not that any of that was difficult, but the gear change process seemed to interrupt my thoughts. Find it a lot more convenient now. Tap the touch panel and set the feed or threading parameters. Done in less than 15 seconds. I rolled my own, but I think ELS in general is a good thing.