3D printed clock
Posted: Mon Jul 09, 2018 5:08 am
Here is a picture of a 3D printed clock I am working on. The gear profiles and escapement were designed using Gearotic with additional CAD work in TurboCAD.
It is currently running with a 5 pound weight providing a 4 day run time with 4 feet of drop. It appears to have an accuracy within a few minutes per hour. The finial below the pendulum allows almost 2 inches of length adjustment. I just got it assembled yesterday and it runs for a couple of hours before stopping. When it stops, the energy at the escapement is completely gone, so there must be a burr on one of the gears. The plan is to add a pulley to provide 8 days running with 10 pounds of weight.
The total print time of all the components is somewhere around 40 hours on a Prusa MK3. Everything is PLA except the shafts, weights, and a few bearings. It has bearings for the winding drum and pendulum support.
Steve
It is currently running with a 5 pound weight providing a 4 day run time with 4 feet of drop. It appears to have an accuracy within a few minutes per hour. The finial below the pendulum allows almost 2 inches of length adjustment. I just got it assembled yesterday and it runs for a couple of hours before stopping. When it stops, the energy at the escapement is completely gone, so there must be a burr on one of the gears. The plan is to add a pulley to provide 8 days running with 10 pounds of weight.
The total print time of all the components is somewhere around 40 hours on a Prusa MK3. Everything is PLA except the shafts, weights, and a few bearings. It has bearings for the winding drum and pendulum support.
Steve