Is it digital, or is it analog?  Well it's some combination of the two! The rack driven 7 segment display is a fully 3D printed mechanical desk piece that is equal parts satisfying and bewildering.  Turn the top dial to rotate a series of 14 cams which push on a rack and pinion system to reveal a number.  Operate is manually, or add an optional servo motor to the back and have the thing run on it's own.

You could even throw 4 of them side by side to create a clock!  Add another two and get the seconds.  Give one a randomized number generator and it becomes a dice!  Endless possibilities!

The STL File:

Prints on all standard 3d printers, requires no additional tools or assembly, and assembles in seconds.
For servo attachment (not necessary), it used these servos: https://geni.us/G8ArjNg

Recommended print settings:
Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-18% 
Total Material: ~190g

Can print on any sized 3D printer.

Rack Driven 7 Segment Display

Build 2 - Cams and Housing - 125g.stl

Rack Side (x4).stl

Top Plate.stl

Detent.STL

Cam (Larger Clearance)_Bottom Inverse.STL

Cam (Larger Clearance)_Bottom Left Inverse.STL

Cam (Larger Clearance)_Bottom Left.STL

Cam (Larger Clearance)_Bottom Right Inverse.STL

Cam (Larger Clearance)_Bottom Right.STL

Cam (Larger Clearance)_Bottom.STL

Cam (Larger Clearance)_Middle Inverse.STL

Cam (Larger Clearance)_Middle.STL

Cam (Larger Clearance)_Top Inverse.STL

Cam (Larger Clearance)_Top Left Inverse.STL

Cam (Larger Clearance)_Top Left.STL

Cam (Larger Clearance)_Top Right Inverse.STL

Cam (Larger Clearance)_Top Right.STL

Cam (Larger Clearance)_Top.STL

8mm C-Clamps (x6).stl

Central Clock Connector.stl

Dot Centres.stl

Dot Outlines.stl

Base Piece (For 2 Side by Side Modules).STL

Central Counter Connectors (to connect base pieces together).stl

This is a fully functioning 3D printed grandfather clock.  Using mainly 3D printed parts, this clock was specifically engineered to be assembled in minutes, and can run for over 6 days on a single winding. With a little bit of tuning, it can accurate keep time with that classic tick-tock sound.

The video below shows how easily this clock can be assembled 

**The STL File:**

Prints on all standard 3d printers without supports, requires the following additional parts to assemble:

- 21 M4x12| 11 M4x20 Screws (https://amzn.to/3zgQb8f)
- 23 M4 Washers (https://amzn.to/3E1crFU)
- 17 624Z 13mm OD/4mm ID Bearings (Like these https://amzn.to/3DtUUpH)
- 1mm Nylon String or Fishing Line (I used string from this set https://amzn.to/3DtUUpH)
- 5 pounds of weight - could be ball bearings or a dumbbell (I used one from this set https://amzn.to/3zfVKUy)

**Recommended print settings:**

Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-20% 
Material Required: ~650g (Printed in PLA)
Minimum Build Plate Required: 180x180mm


**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!

The 3D Printed Wall Clock

0 Entire Part Layout (For Planning).stl

The definition of chaos is complete disorder and confusion- this sculpture features a triple pendulum which devolves in to a chaotic movement when you start moving it side to side. Using paddles connected to rack and pinions, you can control the chaos by pressing on the paddles. 

The STL File:
Prints on all standard 3d printers, requires no additional tools or assembly. This video shows how to assemble it!
https://youtu.be/GuIfRCekvZI?si=Epl9jBimZcqmcq4M

Recommended print settings:
Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-18% 
Total Print Time: ~10 hours
Total Material: ~200g

**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!﻿

The Triple Pendulum Chaos Creator

Full Build (10h - 200g).stl

This is the escapement powered by Bob, the humble escapement operator.  Bob is the one responsible for adding a pulse to keep the pendulum swinging, as well as triggers the advancement of the escapement wheel. This is my take on this escapement designed by dgreene909 

Here is the video that shows how easily this mechanism can be assembled!
https://youtu.be/3lrOB2xOD-U?si=G2IuRQe3FXeFsXqi

The STL File:
Prints on all standard 3d printers without supports, requires the following additional parts to assemble:

- 8 M4x12 Screw (I used https://geni.us/Sf5DpA9)
- 6 M4 Washers (These are the ones https://geni.us/tBNZNg)
- 4 624Z 13mm OD/4mm ID Bearings (These work great https://geni.us/lYZB)
- 1mm Nylon String or Fishing Line (I used string from this set https://geni.us/10HpwLY)

Recommended print settings:
Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-18% 
Total Filament Required: ~145g
Minimum Build Plate Required: 200x200mm

**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!

The Walking Bob Escapement

Build 3 - 7.5h - 53g.stl

Something as simple as keeping count is easy to do in the digital space.  Before computers and the digital age, however, we used gears and other mechanical components to achieve things such as keeping count.  This is a 3D printable adaptation of a really cool mechanical device that is becoming increasingly obsolete in modern times. It can go from 0-999 in both increasing and decreasing counts!

This download includes all of the STL files needed to print your own Mechanical Counter and requires no additional tools for assembly.

Watch this video to see how easy it is to build this yourself! 
https://youtu.be/WnH5V8f5vRU?si=cqY8aSOHjADn4l8m

Recommended print settings:
Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-18%
Total Filament: ~0.375kg
Largest Part Size: 141x90 mm

**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!

The Mechanical Counter

Number Disc Middle.STL

Some may call it the trippiest thing to come off of a 3D Printer since the conception of 3D printing. The Exploding Circle, previously existing only as a 3D rendering in the world of the YouTube, has been brought to the real (simulated) world.  After repeatedly kicking the behind of its creator, the gears have aligned. Once every 2pi radians, the segments of the circle come together, only to re-explode as the crank keeps spinning.

The Exploding Circle engineered kinetic sculpture is a mesmerizing example of how you can use spur gears, bevel gears, and planetary gears to create interesting motion.

This download includes all of the STL files needed to 3D print your own Exploding Circle sculpture and requires no additional tools for assembly. WD-40 or another type of lubricant is recommended for smooth operation.

This Video shows you how easy it is to assemble!

Recommended print settings:

Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-18% 
Total Filament: ~0.47 kg
Largest Part Size on Bed: 200x200mm
Tallest Part: 106mm

**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!  This download includes pre-arranged layouts for 205x205 (or larger) beds for easier printing!

The Exploding Circle

Build 1.stl

Mechanical Engineering

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Rack Driven 7 Segment Display

The 3D Printed Wall Clock

The Triple Pendulum Chaos Creator

The Walking Bob Escapement

The Mechanical Counter

The Exploding Circle