“I have always been facinated by rolling ball clocks and when I saw JBV Creatives “Rolling Ball Escapement” demo I just had to build it into a working project.
This is a general purpose kitchen timer and uses a 3D printed Rolling Ball Escapement fromJBV Creative.
The original Rolling Ball Escapement was driven by a weight and string pulling on a ratchet gear.
I have replaced the weight with a stepper motor controlled by an Arduino NANO.
Time remaining is displayed on a 8 digit 7 segment LED display along with other functions.
The timer sound is provided by a JQ9500 sound module that can play any MP3 sound files as the timer alert.
Designed to be wall mounted but can be used on a counter top if attached to a heavey base for example a granite sample as in the animation.
Supplies:
3D Printed Parts
The image shows the list of 3D printed parts.
The items in red are included with the Rolling Ball Escapement kit.
Note some parts are listed as 0 in the “New Qty” colume as they are not required.
The parts in light grey are included in the zip file.
Parts list
- 1 off Rolling Ball Escapement
- 1 off Arduino Nano
- 1 off Verboard 51 holes x 30holes 31 strips
- 1 off 28-BYJ48 Stepper Motor and ULN2003 Stepper Motor Driver
- 1 off JQ6500 sound module
- 1 off Mottram Labs 0.56” MAX2719 7 Segment Display Module Green
- 1 off ND Gel Filter Sheet 30mm x 120mm
- 2 off MP1584EN ultra Small DC-DC 3A power Step-Down Adjustable Module Buck Converter
- 1 off Wooden Back board 265mm x 110mm (engineered wood flooring off cut)
- 1 off Bearing 624ZZ
- R2 Resistor 3K3
- R3 Resistor 3.3K
- R1 Resistor 3K
- D1 1N4001
- R4 100
- C3 Electrolytic 220 µF
- C2 ceramic 100nF
- C1 ceramic 2,5mm, 100nF
- F1 Fuse with holder, 1A
- 1 off 12mm Latching Push Button Switch SPST
- 2 off 12mm Non Latching Push Button Switch SPST
- 5 off 6×6×8mm Momentary Tactile Tact Push Button Switch with Button Caps
- Various Pin Headers Male & Female”