Designing a Fully 3D-Printed Mechanical Calculator

Even if almost tragically impractical in a world where digital calculators are cheap as chips, mechanical calculators and their big mechanical computer brethren remain an absolute marvel of engineering. Using nothing but elements like simple gears their motion is used to calculate everything from a simple multiplication to the proper targeting instructions for an Iowa-class battleship’s guns. This fascination, along with the mind-bendingly high prices for commercial digital calculators led [3D a