Build Your Own Planetary Rover Bogey Suspension Platform
The rocker bogey suspension system is an amazingly simple design with proven effectiveness.
Build an Inexpensive Solar Trickle Charger From Junk
Harness the rays from the sun to power your outdoor bots.
GoPHR — An Inexpensive Prototype Platform for General- Purpose Household Robotics
The idea behind this homebrew build is to develop an open source hardware platform capable of performing useful household tasks, plus be expandable.