Triaxial Motorized Tourbillon
Introduction: Triaxial Motorized Tourbillon
It seems like Jacob and Co never makes the exact same watch twice. There are almost as many variations of Astromomia watch, as there are pictures of it on the web. I based this Motorized version on the model of the Jacob and Co. Astromomia watch in this video: https://www.youtube.com/watch?v=qvx0jXbKkV0
My build can be seen here:
Most of the clock face parts will be the same as those in the Quartz Upgrade, this design includes a version of the clock face (Clock Face w Embedded Numerals) that can be printed in 2 colors where the second color determines the color of the numerals.
After seeing what he did, I created the Triaxial Quartz Movement Upgrade (https://www.thingiverse.com/thing:3677946) for the original Triaxial, to provide a clean design for incorporating a quartz movement.
This version still uses 2 stepper motors, but running in parallel to drive the Carrier and provide more torque.
I want to thank <PERSON>, A26, Dexter_New_Materials, and <PERSON> <PERSON> for his help developing the code and the design changes that he made to get the Motorized concept to work.
- A26 who's original Triaxial design provided the inspiration for this design: https://www.thingiverse.com/thing:3061474
- Dexter_New_Materials for the Moon model I remixed: https://www.thingiverse.com/thing:1014620
- And bld for the Earth model I remixed: https://www.thingiverse.com/thing:17336
Note: In these steps references to section numbers, Figures, and tables can be found in the Triaxial Motorized Build Notes PDF, which is a download file.
Note: Instructables has a 25MB file size limit. As a result several of the more complex STL files posted here are low resolution. I typically generate high resolution STL files to minimize faceting when you print.
High resolution files are available on Thingiverse at: https://www.thingiverse.com/thing:4426921
or Cults3D at: https://cults3d.com/en/3d-model/gadget/triaxial-mo...
More of my designs available for download are available at: https://www.thingiverse.com/mcmaven/designs
And on my Instagram page I document these and other projects that I'm working on: @mcmaven.pdx.
Supplies
Here are the parts that I used. You can use hex socket or Philips head screws, your choice. 226
I paid about $1 a piece for all the ball bearings on eBay or Amazon.
Some of the “2mm” steel shafts that I’ve picked up on eBay or Amazon have been slightly oversized, just enough so the bearings won’t fit on to them. Look for a slip fit of the shaft in the bearing. DON’T force the bearings on the shaft. Excess force can jam the bearings, making them useless. My solution was to order shafts from another vendor. Maybe you will get lucky the first time.
Summary
(6) 2x5x2.5mm MR52-ZZ ball bearings
(4) 3x6x2.5mm MR63-ZZ ball bearings
(9) 8x22x7mm 608-2RS ball bearing
(~360mm) 2mm shafts
(~60mm) 3mm shafts
(1) Arduino Uno
(2) 28BYJ-48, 5 Volt Stepper Motor with driver board
(1) Rotary Encoder Module
(1) 2A USB Power Supply
(1) USB B to A cable.
Screws, see section 2.2.
Details
All the shaft length dimensions are maximums. The shafts will normally work if they are 0.5-1.0 mm shorter, but don’t use longer shafts than specified.
2x5x2.5mm MR52-ZZ ball bearings
· 1 Carrier
· 2 Base
· 4 Tourbillon
3x6x2.5mm MR63-ZZ ball bearings
· 4 Tourbillon
· 2 Base
8x22x7mm 608-2RS ball bearings
· 4 Carrier
· 2 Base
· 2 Fork Frame
· 1 Clock Face
2mm shafts
· 2 Base 13.5mm
· 2 Carrier 12.5mm
· 1 Carrier 12mm
· 1 Carrier 11mm
· 1 Clock Face 37. 226