A LOT of Wandering Hours Clock

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This is NOT recommended as a first print.  Take a look around at the several other remixes and decide which one you want to tackle.  There is a lot of excellent information in all of them.

I have built one of these and it has been running flawlessly.  I would recommend some slight changes - detailed below.  I have not imlemented them, because if it ain't broke, don't fix it.

I use the european high torque clock movement described in one of the other remixes.  I cut off the hour shaft flush with the movement.

I used one 608 bearing for the main wheel and three M3 screws to secure the bearing along with 3 melt-in M3 inserts.

The 40T drive gear is modeled to accept an insert and M3 screw, but it fits quite tight on the minute shaft so you can probably leave those off, I did.

I use 2 - 5x11x4 bearings stacked on top of one another pressed into each of the planet gears.

The planet gears, with bearings, press on to the main drive gear.  The hands press into the planets

To align the planet gears properly, you MUST pay attention to the clocking.  The 1,4,7,10 gear should have the point between the 1 & 10 pointing down at the very top of the sun gear.  2,5,8,11, similarly with the point between 2 & 11, and 3,6,9,12, with the point between the 3 & 12 - see photos.  

Use the spacer to make the clock movement fit properly on the back of the clock

Adjust the press depth of the sun gear to avoid binding of all gears and hands.

Print the 4 standoffs and affix them to the clock base and then re-assemble the clock.

I used the drilling template with the exception that the hole for the clock movement is at the bottom.  I modeled in a slot in the minute arc to avoid interference.  This allows the original hanger to be used and makes a cleaner look in my opinion.

Improvements I recommend: Print the sun gear with a thinner “geneva guide” so as to give the hands some more clearance and the planet gear teeth a bit more clearance.

I added a little more movement.  I took inspiration from the original and the geneva wheel version.  What I wanted was a clock where all of the number wheels would be constantly turning except for when it their “turn” to tell the hour.  This model accomplishes just that.  The planet gears with the number crosses rotate 450 degrees in a 240 degree arc and are stationary for the 120 degree arc in which their hour is telling the time.