SUPERNOVA CHUCK

Re: SUPERNOVA CHUCK

Chuck Ludwigsen

>Yes, it is correct. And if you watch what direction your handle turns the inner gear when tightening, you'll notice it is clockwise (while facing the jaw faces). Since the lathe - and chuck body - turns counterclockwise, it means that the inertia of the workpiece at startup technically would tighten the jaws if they slipped at all. For expanding hold, remember that the jaws are going to want to push out at startup while the gear would technically want to pull them in (due to counter rotation). So that helps keep it from having the opposite effect for expansion operation.

Then again, I could be totally wrong - and always reserve the right to be wrong... It could be because those "New Zealanders" are just different... ;-)

By the way, those nice New Zealanders from Teknatool shipped out my replacement pinion key with t-handle. They were kind enough to machine the old style key head for my unit while affixing to the T-handle with the new design. So no more floppy head. It works great.

Chuck in Memphis, TN.

thanks Chuck NM

Bernie

>

Yes, the Nova chucks turn backwards.

Al Crandall -Pendleton, IN.-

>Every chuck used in metal turning and all the rest of the wood turning scroll chucks that I am aware of turn the handle clockwise to drive the jaws inwards. The Nova does seem to be counter-intuitive to anyone who has worked around metal lathes, milling machine vises, woodworking bench vises, keyed drill chucks, or other tooling machinery. The scroll feature of a jaw drive mechanism takes out the worry of the jaws backing away from the work regardless of whether you have clamped in expansion or compression mode. Rotation of the handle thus becomes a matter of personal preferance and you just have to stop for an instant to think before turning the handle.

Re: SUPERNOVA CHUCK

Mark Kauder, Phenix City, AL

>Yup, it is probably the only thing that I really HATE about my SuperNova.

Mark

Yes, like driving on the left side of the road

Fred L. - North Carolina

>

It's because New Zealand is south of the Equator

Garrett in Victoria BC CA

>Just as water swirls the other way round when going down the drain, New Zealanders drive on the left side, and turn their chucks counter-clockwise to tighten...

Cheers, Garrett

Re: It's because New Zealand is south of the Equat

JamieDonaldson

>Garrett beat me to it- the Novas are made in the Southern Hemisphere, and therefore are rotated anti- clockwise!I recommend anyone who uses a chuck engrave O----C (Open--Close)with arrows to remind themselves which way this chuck operates.Use a vibrating engraver, and when you have several brands of chucks you will know which way to turn.