Handy measuring device

Are you like me when designing things? It turns out I'm really bad at ballparking sizes and having an actual feel for what makes sense.I start drawing and pick a size that feels good, only to print it and realize it's way too small, or big. So, I decided to make a simple too to have at my desk to give me a quick sense of scale. This smart ruler gives you:Millimeter distance 0-20cm (for lefthanded use)Relatable hole sizes starting at .5mm in steps up to 20mmRelatable at-a-glance sizing starting a