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i'll soon be making swarf

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Gazz292:
it deffinately makes sense what you are saying,
i think i'll replace the gears with metal when i can afford them, 1 or 2 at a time, like i say, i want to one day convert the headstock to taper roller bearings, so will do the gears in there then (if i dont strip them before  :hammer:

and eventually get all metal gears except the easiest to replace one,

i'm not sure why the tumbler gear went, maybe somethings out of alignment, my fault really as the lathe had been set up with the lowest gearing and left like that, last owner never operated the half nuts he said, so when i changed the gears to give the fastest carridge drive speed, it didnt like it,
it was really bogging the motor down, and like a plonker, i kept power on to see if it would clear  :bang:

i think what happened was the tumbler gear lever tried to jump out, got a little way, then the gears went, as i've noticed since that when in forwards gear, the lever will try to disengage from the torque, maybe the spring holding the pin in the detent is weak, tho the detents do seem pretty shallow,

i assume the torque trying to throw it out of gear is normal?

dbvandy:
Check and make sure your lead screw turns easily.  Mine was very tight and I had to polish the bearing surface on the non gear end.  Also, check the indent in the back of the head for the forward and reverse.  you might need to make them a bit deeper so that the handle will be solid and not move accidentally.

Doug

Gazz292:
you know, i can be thick at times,

i was re-reading bogs post about darrens lathe, and a few other posts he's made on other forums about making these lathes better, and one of his bits was about setting the leadscrew up paralell,

then the light bulb went on.... as i wind the carriage along manually, half nuts disengaged, i can hear the half nuts beginning to rub on the lead screw, the grating gets louder the closer to the tailstock the carriage gets.....  :scratch:

and where the the carriage when i put the high gearing on to move it faster... yup, about 3/4 of the way accross the bed towards the tailstock, no wonder it had trouble moving the carriage, the darn thing was binding  :bang:

i really must leave the lathe alone now, untill i have the workshop done, as i'll just bugger more things up on it playing around, when i know i need to strip it right down and re-build it, doing a few mods as i go along.

andyf:
Your lathe is very similar to a Sieg C3, so this guide to tidying one of those up might be worth a look:
http://www.arceurotrade.co.uk/projects/prepguides/C3%20Mini-Lathe%20Preparation%20Guide.pdf .

The 25T gear has been consigned to the tender mercies of Royal Mail. Odd that in the UK we post things to one another and the Royal Mail delivers (most of) them, whereas in the US things are mailed but the Postal Service delivers them.

Andy

 

Hobby-Machinist:
Doug,

You've really made super progress in a short time with your import.

If I may ask, how did you learn to use it so fast- did you have a mentor?

Just curious, because you have really advanced fast.

Thanks,


Nelson

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