[TR] How do they manufacture gears?

[Jim Muller]

Speaking of gears, perhaps one of you with a mech. eng. or 
manufacturing eng. background can explain how they make them?  We 
take them for granted but a gear is a marvelous device.  To create 
those helical teeth and hardened surfaces must require some 
diabolically clever technique or at least people who knows what they 
are doing.  A blacksmith's hammer and tongs ain't innit, I suspect.

(I think I'll just pop down to the drugstore and pick up a few 
layshafts.  Need anything while I'm there?)

Have always been curious.  Thanks,

-- 
Jim Muller
jimmuller at rcn.com
'80 Spitfire, '70 GT6+