A particularly pleasing version of this are these concrete dumbbells whipped up by the unfortunately ... this hack is still worth your time. Mold making is one of the uber-useful skills you ...

In this video, I’ll show you how to make your own concrete weights at home using simple ... from building the molds and mixing the concrete, to adding handles and customizing the weight.

[Thomas Sanladerer] wanted to create some molds using 3D printing for concrete and plaster. He used a delta printer with flexible filament and documented his process in the video below. If you ...