# Solarbotics GraviTrack Marble Machine Kit - Battery Edition

**Type:** Product page · **SKU:** CE05195 · **Brand:** [Solarbotics](https://core-electronics.com.au/brands/solarbotics-australia)
**Page:** https://core-electronics.com.au/solarbotics-gravitrack-marble-machine-kit-battery-edition.html ([markdown](https://core-electronics.com.au/solarbotics-gravitrack-marble-machine-kit-battery-edition.html.md))

Construct your own hypnotic marble-coaster with this superb Solarbotics kit. Watch as the marbles are cycled through synchronised mechanical arms using nothing more than laser-cut wood and a single motor.

## Pricing

- **Price:** $46.75 (inc GST) — $42.50 AUD, exc GST
- **Quantity discounts:** 10+ $41.23 (exc GST) · 25+ $40.37 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 6 today; more stock is typically available with a 7–13 day lead time.

## Description

Construct your own hypnotic marble-coaster with this superb Solarbotics kit. Watch as the marbles are cycled through synchronised mechanical arms using nothing more than laser-cut wood and a single motor. There's no soldering, programming or microcontrollers involved, just a clever design which makes for the perfect desktop gadget.

## Specs:

- Beginner skill level - ages 12+
- Basic hand tools required (Phillips screwdriver, craft knife, wood glue)
- 2 x AAA batteries required (not included)
- 2 hour build time
 
## 
**What's in the Kit:**

- 1 x Set of laser-cut wood parts
- 1 x GM3 Motor + battery pack
- 1 x GMW Motor mount
- 4 x 3/8" steel marbles
- Assembly hardware

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/6/0/60410-1.jpg)