use of differentials in clock movements

[KEvron]

a recent thread regarding issues with differentials prompted me to post at youtube a couple of video studies on differentials in clock movements.

KEvron

Edited September 27, 2012 by KEvron

[DLuders]

You are the Clockmeister!

http://www.youtube.com/watch?v=pYZPrVkk3i4

http://www.youtube.com/watch?v=MamUo3JUq0Y

Edited December 28, 2011 by DLuders

[KEvron]

thanks, D. not really a master, yet, but "expert" would suit me just fine.

i think i might produce more of these study videos; coaxial hand movement, pendulum suspension, etc. i should have included some alternative methods in these two vids. i'll be sure to do so in the next.

KEvron

Edited December 29, 2011 by KEvron

[Burf2000]

Your stuff is brilliant!

[KEvron]

you probably want to remove these two videos.

KEvron

[DLuders]

Edited September 28, 2012 by DLuders

[jorgeopesi]

Interesting I really want to know more about that systems and how they work.

[Philo]

Enlightening! Thanks for these excellent videos.

[mahjqa]

What the hell happened?

Are you two trying to have an asshole contest?

Impressive builds, Kevron.

Edited September 28, 2012 by mahjqa

[DLuders]

[bUMP]

sine35video posted this

of a "LEGO Gear Reduction for a Small Clock Face". It shows how "A worm gear massively simplifies clock gear reduction for a simple two-handed case like this, totalling 5 gears. The worm to 20 tooth gear generates a 1/20 reduction, then the 8 tooth to 24 tooth on the differential is another 1/3 reduction, giving 1/60. The differential allows the main axle to run through to the large hand whilst constraining the small hand in position in the middle."