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Oil Filter Drain ToolWhere can I buy the oil filter drain tool that was...

Rapid Prototyping and Experimental Design

How to fabricate sandwich panels, part 3.

Scratch-Built Christavias

Quickbuild kits too easy? Here's your next project.

Aero ‘lectrics

Columnist Jim Weir comes up with what he thinks is the optimal design for getting power from the 12-volt aircraft battery to the LED without wasting any.