I worked one of those typical project so I would learn design and built tools I have: 3d printer and openscad. I built a video light that goes on a light stand.

A few notes on various things I've learned trying to configure Reprap Discount smart controller from scratch in Marlin, as well as customizing existing OpenScad designs for my particular use case.

All of the custom designs I used for my bear upgrade build.

A series of videos on assembling bear upgrade

Workaround to installing bed visualizer.

One of the practical 3d prints I would like to highlight.

Trying out different print settings to diagnose first print layer problem.

When all other method of fixing first layer of 3d prints fail, check your custom Marlin firmware settings.