# Solarbotics GraviTrack Marble Machine Kit - Solar Edition

**Type:** Product page · **SKU:** CE05320 · **Brand:** [Solarbotics](https://core-electronics.com.au/brands/solarbotics-australia)
**Page:** https://core-electronics.com.au/solarbotics-gravitrack-marble-machine-kit-solar-edition.html ([markdown](https://core-electronics.com.au/solarbotics-gravitrack-marble-machine-kit-solar-edition.html.md))

Solarbotics Solar GraviTrack Marble Machine Kit is their newest addition to the Marble-Drop mechanism family. The Solar version pulse-moves the elegant hand-off mechanism that passes marbles to the top of a sweeping multi-level track. You will witness the fascinating step-by-step action of the arms as the geometry changes periodically

## Pricing

- **Price:** $53.75 (inc GST) — $48.86 AUD, exc GST
- **Quantity discounts:** 6+ $47.40 (exc GST) · 12+ $46.42 (exc GST)

## Availability & dispatch

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

## Description

Solarbotics Solar GraviTrack Marble Machine Kit is their newest addition to the Marble-Drop mechanism family. The Solar version pulse-moves the elegant hand-off mechanism that passes marbles to the top of a sweeping multi-level track. You will witness the fascinating step-by-step action of the arms as the geometry changes periodically. Patience is rewarded with the plunk, and rollll of a successful motion cycle. The more light it gets, the more often it moves. It's solar-powered stop-action motion!

**Specifications:**

- Intermediate skill level - ages 12+
- Soldering required
- Basic hand required (Phillips screwdriver, craft knife, wood glue)
- Soldering tools required
- No batteries included (or needed - it’s solar powered!)
- 3 hour build time

**Kit includes:**

- 1 x Set of laser-cut wood parts
- 1 x GM3 Motor
- 1 x 37x66mm solar cell
- SolarEngine circuit board & components
- 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/6/0/60415-1.jpg)