If you frequently use a 3D printer for your projects then you may experience issues calculating the material weight and length usage. If so, then you might be interested in this project using Arduino.

Introducing the home-made LEGO 3D printer… with a chocolate extruder. [Gosse Adema] has been working on his LEGO based 3D printer for a while now, and it’s gotten pretty good.

I'm a model railroader. I spend a ton of time scratch building. Right now, I use a Silhouette Cameo to help with cutting duties, a 3d printer has all kinds of obvious utility for me. For 1000 ...

How impressive is this? It's how to build what is described as a fully-functional microscope using Arduinos and a Raspberry Pi. There's also LEGO and 3D printing in the mix. It's the Gadget Master ...