Topsy Turvy Clock
Motor Chassis – Design and marking out
When designing the chassis for the Topsy Turvy Clock I needed to think about how the components would fit on the brass sheet but also how I would go about marking out. Typically when dimensioning a diagram you use a
Posted in: Topsy Turvy Clock
Tags: marking out
Clock gear spacing
After playing with the locations of the motors and gears I roughly sketched an assembly diagram with the location of the motors and shafts to allow me to estimate various part sizes. My gears were described as “27 mm Diameter
Posted in: Topsy Turvy Clock
Tags: Gears
Clock shafts
Like any normal clock, the topsy turvey clocks requires two concentric spindles. The original spindle sizes were 1.6mm and 3.3mm to fit the hands. The size needed for the gear wheels I purchased was 4mm. The lengths need to be
Posted in: Drilling, Machining, Topsy Turvy Clock
Real Time Clock – DS1307
For my Topsy Turvy clock project I’ve purchased an I2C clock module based on the DS1307 Real-Time Clock chip. As mentioned this came without a battery to keep the post office happy. Although looking at the current wording of the
Posted in: Topsy Turvy Clock
Tags: Arduino, RTC, Sponsored
More small steppers
The output of my stepper motor feeds into a gearbox which I’ve been told has a ratio of approximatly 64:1. During the research of this project I came across a discussion about why the gear ratios were not exact nice
Posted in: Electronics, Topsy Turvy Clock
Tags: Arduino, stepper motor
Small stepper motors
For my clock project I needed to control the position of the hands. My options were continuously rotating servos or stepper motors. I found some small 28BYJ-48 stepper motors and gearbox with ULN2003 driver boards on the internet so I
Posted in: Topsy Turvy Clock
Tags: Arduino, stepper motor
Silly Clock
Whilst watching the Mr Silly, Mr Men episode on TV, I noticed he had a rather splendidly silly clock. Research I was having a think and concluded that such a clock could be made and could also be designed to
Posted in: Projects, Topsy Turvy Clock
Tags: Arduino, Clocks
Metal sculpture in brass, mounted on an 1800s French Coin
