Month: September 2007

Electrolytic rust removal

Electrolytic rust removal

ToolNut put together a nice guide for using electrolysis to clean up rusty tools: This is a relatively simple, safe and cheap way to remove light or heavy rust from any ferrous object. I used this process to restore an old wood plane that I bought for $1 (it looked totally un-usable because of the […]

Homemade jet engine

Hmmm. Beer and garage-built jet engines. Is it just me or does this look like an accident waiting to happen? That is one angry motor. BTW: There are dozens of similar engines on YouTube. Search on “homemade jet engines.” Few of them look quite this… dramatic. Beer+old turbo=home made jet engine – [via] Link Related: […]

Defconbots autonomous sentry gun

Kevin Hjelden and his friend Joe built this autonomous shooter for this year’s Defconbots competition. They described the build before they started: The electronics for this project are going to be relatively simple as well. To control the three servos (pan + tilt + firing), we are going to use the Pololu 8-channel servo controller. […]