3D Printed Pendulum Clock
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PLA from £6 inc. UK delivery on letter-sized prints. We slice, print on a calibrated Creality K2 / Bambu A1, QC and post.
This is a 3D printed pendulum clock with an 8-day runtime and an accuracy of around 1-2 minutes per week.
The primary goal while designing this clock was to make it functional as an accurate time keeper. It has a deadbeat escapement which remains accurate with variations in weight or power train friction. I wanted it to have a long runtime so it would still be keeping time if I was away for a few days. It took a few refinements and a few internal metal components to reduce friction enough to allow an 8-day runtime.
The gear outlines and escapement were designed using Gearotic with final cleanup in TurboCAD. All the parts were printed on a Prusa MK3 in PLA with a standard single color print head. Layer changes were used to print highlights on the dial. The total print time is just under 90 hours. Modern printers with input shaping will be significantly shorter.
The design was made to look as much like a traditional brass clock as possible. The gears were printed in gold and made as symmetrical as possible. I wanted a traditional Roman numeral dial including the use of "IIII" instead of "IV" at 4 o'clock.
This design has evolved for about 6-8 months until it has reached the current form. I am quite pleased with how it looks. It won a prize in the Hackaday.io 3D Printed Gears, Cams, and Pulleys contest at https://hackaday.io/project/163814-3d-printed-pendulum-clock. It also has a really bad YouTube video at https://www.youtube.com/watch?v=imYTm0Vh5TA (Mostly,…
