The model orrery is made entirely of standard metal, yellow and green meccano. It is made up of a base consisting of a square frame resting on four feet, which supports the long frame that sits atop a large circular cog to allow for 360 degree rotation. This crane like frame is made up of three sections.
The right hand side features the main motor for powering the rotating gears and chains, connected up using a red and blue wiring system. This motor sits on top of the frame, while a large square weight is attached to the underside of and a smaller 8 oz circular weight sits inside the frame.
Perched on top of the left hand side is the main mechanism of the orrery. This mechanism consists of a series of small and large gears which rotate against each other to allow the small models of the earth, which spins on its own axis and the moon, which rotates around the earth, to function. A single long metal rod connects the cogs on the right hand side with the mechanism on the left.
In the centre of the frame is a long vertical rod housing a small platform adorned with a lightbulb and a ping pong ball. This model represents the sun and can be powered by the blue capacitor which is connected to the motor via a yellow wiring system.