[wyojustin] was trying to think of projects he could do that would take advantage of some of the fabrication tech that’s become available to the average hobbyist. Even though he doesn’t have any particular interest in clocks, [wyojustin] discovered that he could learn a lot about the tools he has access to by building a clock.
[wyojustin] first made a clock based off of a design by [Brian Wagner] that we featured a while back. The clock uses an idler wheel to move the hour ring so it doesn’t need a separate hour hand. After he built his first design, [wyojustin] realized he could add a planetary gear that could move an hour hand as well. After a bit of trial and error with gear ratios, he landed on a design that worked.
The clock’s movement is a stepper motor that’s driven by an Arduino. Although [wyojustin] isn’t too happy with the appearance of his electronics, the drive setup seems to work pretty well. Check out [wyojustin]’s site to see the other clock builds he’s done (including a version with a second hand), and you can peruse all of his design files on GitHub.
Looking for more clock-building inspiration? Check out some other awesome clock builds we’ve featured before.
I’d like to build a 3D printed clock, but to make the 60:1 gear ratios use a [harmonic drive system](http://en.wikipedia.org/wiki/Harmonic_drive), this is easily feasible with 3D printing, not so with laser cutting. [Here’s a 3D printed harmonic drive example](http://www.thingiverse.com/thing:20177).
Ugh… so what are the formatting standards to HaD comments for links?
a href. Just like it’s been for 20 years.
a lot of sites use that sucky markdown stuff (.md files) or the square bracket bbs style. so, its understandable that people wonder which formating to use. html always seemed ok to me, but other sites seem to want to use other formats, for some crazy reason.
Seen this printed clock? http://www.thingiverse.com/thing:328569
I’ve made one, runs well :)
These are really pretty. I kinda want one now.