3D-printed Holo Clock
By Andrew Gregory. Posted
This article was originally published as part of HackSpace magazine, which has since been incorporated into Raspberry Pi Official Magazine.
Analogue-display clocks have been around in one form or another for centuries. Now, with 3D printing, it’s possible to design things that just wouldn’t have been possible even 20 years ago. With this circular design (the maker describes it as a halo clock), maker saulemmetquinn has turned clock design upside down. It’s still recognisable as a clock, with a round face, a big hand, and a little hand, but there’s something refreshingly different about this design that we like.
The gear shafts are brass rods, cut to size using a Dremel, and the current design has a few exposed jumper wires. The whole thing is driven by an Arduino Uno and a stepper motor, with the frame and gears printed in white and black PLA.

Make beautiful beats with the complete Raspberry Pi music production toolkit.
Features Editor Andrew trawls the internet for Cool Stuff while keeping the magazine running smoothly.
Subscribe to Raspberry Pi Official Magazine
Save up to 37% off the cover price and get a FREE Raspberry Pi Pico 2 W with a subscription to Raspberry Pi Official Magazine.
More articles
Sequino clock
This tricky build was inspired by a child’s t-shirt
Read more →
Use a robot to build a robot
This glorious, (mostly) 3D printed robot has six degrees of freedom.
Read more →
Make Music With Raspberry Pi in Official Raspberry Pi Magazine issue 166
Music production is an esoteric world of chin stroking and arguing over what kind of valve makes the best sound in a guitar amplifier – at least, it can be. Load up on software, bring your friends, and record your latest masterpiece on Raspberry Pi. We bring news from the world of 3D printing, where […]
Read more →