The stand that came with my USB microscope is very unstable. This adapter mounts the microscope on a standard ¼"-20 hex nut.

Microscope: [https://www.amazon.com/gp/product/B07DRGR6LX/](https://www.amazon.com/gp/product/B07DRGR6LX/)
¼"-20 hex nut: [https://www.mcmaster.com/92673A113/](https://www.mcmaster.com/92673A113/)

The nut is a press fit, clamp it in a vise if you have trouble.

Printed with Proto-Pasta Back to Basics Natural PLA
0.6mm nozzle
0.4mm layer height (PrusaSlicer Draft setting)
15% gyroid infill