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Andrew Lewis

Latest from Andrew Lewis

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Make your own Arduino-controlled color film processor. Read more »

Linear actuators are motors that work in a straight line. They’re very useful for controlling valves and levers, building robots, and retrofitting old mechanisms for digital control. The simplest form of linear actuator has only 2 positions, while more complicated actuators can be positioned just like stepper motors and servos.... Read more »

Preserving 35mm photos on a computer is a great way to keep them safe, and chances are that either you or someone you know has an old box of irreplaceable memories waiting to be scanned. The problem is that an ordinary scanner doesn’t really scan slides or negatives properly. The... Read more »

Unlock a secret compartment with magnetic chess pieces. Read more »

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