mmCalculator

What is it? It’s a purpose built calculator to convert millimeters to inches with a fun twist… Spin the knob and the numbers appear!
At initial power-on, each click of the knob is a millimeter increment with the calculation to inches displayed.
Who is it for? Originally conceived for engineering drawing converting while estimating machining jobs, but many other instances have arisen.
The Buttons: R for Reset; start the fun over. S for Switch; alternate from incrementing by millimeters to inches. P for Precision; click to increment by 0.1, 0.01, 0.001, or 10.
What else can it do? Nothing! However, it could easily be programmed and updated to convert any units. If you have ideas or requests, please add them in the comments tab.
Why? This is a solution to a singular problem of needing a conversion tool always available and fun to use. It is a useful tool and a conversation piece. Everyone who interacts with it smiles and wants one! Everyone has a calculator in their pocket, in a drawer, under a pile of papers, or on their start menu. Not everyone has one instantly ready at all times. Get one today!

Exhibit # 26-194

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Maker

Sean Motyl

I'm a lifelong maker and manufacturing engineer. I've designed and built many things over the years. I decided to build a tool for myself, and have completed the project. I'd like to transform the project into a STEM learning kit. I'd like to display all the many components that needed to be figured out. The project is called mmCalculator. Instead of using a regular calculator, the arduino-powered device is custom built to be a desk fidget toy and fun experience.

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