3 ms·
I was expecting a little gear at the center point as well that went backwards at a slightly slower angular velocity than the minute hand is moving forwards. But
by tshaddox 4y ago
I was expecting a little gear at the center point as well that went backwards at a slightly slower angular velocity than the minute hand is moving forwards. But I found myself slightly disappointed that it's "just" a magnet. For some reason having the two totally different positioning mechanisms for the two hands feels less cool to me, even though it almost certainly is a simpler implementation.
- fortran77 4y agoIn fact, if you watch the video in the article, it takes you through the 3 prior iterations. Hollow clock v3 had a gear that drove the hour hand from the motion of the minute hand (which is driven from its end). The problem with that, at least with 3d printed parts, was the motion is "jerky". I built one and it never worked well. I'll be trying this version soon!
- romwell 4y agoSame, putting an 11/12 gear in the hub would've been more elegant IMO.