I found a copy of "The Modern Clock" on Amazon for about $17. It is worth downloading these gears and re-printing them even if you have a functional clock. The file names have a "_1" suffixe added by MyMiniFactory to indicate a revision. This change will significantly reduce the possibility of the escapement stalling and stopping the clock.
#Flip clock mini update
Update 10-Apr-22: Refreshed gears 3 and 4 to add a slight helical angle so gear 3 pushes away from the escapement.
The notes call for nut_0p25.stl and nut_0p40.stl, but the included files are knob_0p25.stl and knob_0p40.stl. Also, a small typo was identified in the assembly notes. It can be printed instead of frame_back_left.stl. Update 01-Jul-21: Added frame_back_left_hook.stl as an optional frame component with a small hook for storing the winding key behind gear 9. This design was printed on a Prusa MK3S, but will easily fit on a Prusa Mini or any machine with a print volume of at least 160x160x150mm. The list of non-printed components is half the size of my other designs.ĥ-10 lb. Building a clock that only needs to be wound once a week is still pretty impressive. I have noticed that the gears run better when printed using normal PLA, even though silk PLA can produce really nice looking gears.
The longest 32 day option is a bit aggressive and the beat needs to be set accurately for it to run properly. The shorter runtimes will be more reliable and the clock should run using smaller drive weights. Different options are available with runtimes ranging from 7.8 days to 32 days. This is a great starter clock because of the simplified construction. Use the forum at to discuss clock making topics or assembly issues. Go to to download the latest assembly guide. Some of the changes that make this clock to be easy to build also made it more efficient and the runtime was able to be significantly increased. This is my easiest to build clock with a runtime of up to 32 days.