Design Reference Ruler - Layer Thickness and Wall Width - 0.4 to 5mm

You might also like this other model: https://makerworld.com/en/models/133880

Its really easy to loose sense of scale while modeling on cad when you have infinite zoom and everything can be as detailed as you want. This model provides a real life reference you can look and feel, is 1mm to little or too much?! You can use this while you're working on your design, making the iteration and design process quicker and it will help you get your dimensions right first try.

They are designed to fit inside Digital Calipers Case.

Wall model steps

Thickness model steps