Recycling 3D filament is a great idea in theory, and we come across homemade filament extruders with some regularity, but they do have some major downsides when it comes to colored filaments. If ...

To get the perfect mix for your paint, you need a good shake that is as random as possible. [Mark Rhodes] wanted to automate the process of mixing paint, so he built a 3D printed shaker to ...

But depending on the color and quality, a liter of this paint could cost you $285 to $1,100 ... with fillers and thickeners added to the mix. When mixed and crushed, these ingredients bind ...