dear people

my post was informative... who want to use anything of this... i'm glad...

yes, for industrial environment, working in 3 shift on a lathe need cast iron gears.. or similar that not sensitive for the not accurate positioning like machinist set manually on lathes...

but it is a hobbymachine, even it is wellmade, it is for hobby, you can't expect from this little machine like one built for machineshops with 3phase motors, and you can cut thread all day long reversing motors thoushand times 24 hour...

another point, i don't have hobbing machine, don;t even want to buy set of gearcutters...

i have small router, also not industrial and have some scrap aluminum got from recycling place by trading sodacans :-)

so.. why i should order ground hardened gears, just because they are standard in a production environment?
to order a set gear for this little machine might resulting 1-3 K bill from a machine shop...

what i expect, to cutting a few couple of metric thread, i believe it could be a solution...

i did work in factory... there were several type of gear cutter... mainly hobbing machines, but also was klingelnberg and oerlikon type... but the factory did not produced gears for handdriven drills...

so with this funny example i try to pointing, everything need to be affordable... for me this time this was affordable,,,, as george mentioned he wanted to buy gears, but stamps on mail are too expenses... i guess the next machineshop more expenses :-)

so everything is just as affordable really...

hopefully this weekend i can have more process on this...

best regard