Author Topic: Asymmetrical Gears  (Read 8827 times)

Offline BrianC

  • Newbie
  • *
  • Posts: 28
Asymmetrical Gears
« on: July 02, 2008, 06:42:06 PM »
Has anyone thought about doing asymmetrical gear teeth?  After all, how often do you reverse a clock, so we really only use ONE side of each tooth so why work hard to make something you won't even use?  Yes, yes, I know, the Grasshopper has recoil - big deal - the pressure will still only be on one side of the tooth, won't it?  I mean, the force of the drive weight will still be pushing on the same side of the tooth, it's just that the pendulum will push it back it for a little bit instead of just stopping it.  It's just like the Grasshopper (and most(all?) other) escape wheel teeth, which are asymmetrical because only one side is needed.

Making the teeth asymmetrical, one face flat (or something easy) and the other the proper gear shape, should be half the work to cut & smooth - unless you have a router bit for each size gear you have.  And you wouldn't have to worry as much about the gear teeth jamming, either, as there'd be more room.

The only thing is, you'd have to remember to install the gear right-side out.

BrianC

Ok, this started another thought - has anybody heard of a clock that could be made change direction and run counter-clock wise?  And I haven't even had one drink today, wow.
BrianC

Offline jss

  • Newbie
  • *
  • Posts: 46
Re: Asymmetrical Gears
« Reply #1 on: July 03, 2008, 03:40:18 PM »

Gary's clock designed in 2003 utilized asymmetrical gear teeth for all gears.  Since his site is not up yet you can see his clock here.

http://www.cnczone.com/forums/showthread.php?t=3923



Offline BrianC

  • Newbie
  • *
  • Posts: 28
Re: Asymmetrical Gears
« Reply #2 on: July 03, 2008, 05:04:54 PM »
Very cool clock, interesting gears - and here I thought I thought of something new, darn.  Oh, well at at least there's no reason not to make funny gears.

Thanks for the E-mail, too.

BrianC
BrianC

Offline millerdlca

  • Newbie
  • *
  • Posts: 24
Re: Asymmetrical Gears
« Reply #3 on: July 04, 2008, 08:05:29 AM »
If you really want to see funny gears, take a look at Rabbit's "Time Warp" masterpiece:
http://flashpages.prodigy.net/rpirtle/_ufiles/detail_time_warp.html

Dennis

John Hilgenbergh

  • Guest
Re: Asymmetrical Gears
« Reply #4 on: July 04, 2008, 02:06:21 PM »
John Randle's clocks also use asymmetrical gears.

http://webpages.charter.net/clockdesigns/

John Hilgenberg