Home of the Stipix

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!

Next Steps:

Improve internal components to a fully custom board to eliminate an Arduino prototype board and excess connections.

Develop custom key caps with markings.

About the Creator:

I have a BS in Manufacturing Engineering, and an MS in Design Engineering. I’m a nerd. I wanted to learn how to build something useful. I’d love to keep going with other ideas and solutions. If you’d like to connect other than in the comments tab, please send a message! sean.motyl@gmail.com

Video:

https://youtube.com/shorts/xfXcGbPrJf4