[Johannes] has been reading Hackaday for years but this is the first project he& tipped us off about. It& a laser engraver built from a DVD burner diode (translated). It turned out so well we wonder.
Materials 1 cup sand tbsp cornstarch 1 tsp dish soap water (as needed) Optional* Food coloring Directions Step In a bowl, mix fine sand and cornstarch together. Step Add dish soap and water, and combine thoroughly until well mixed. Step Add f
Button Tree Art - a great kids craft idea!
Machifit NEMA17 Schrittmotor mit 400mm T8 Bleischraube montiert Kugellager und Wellenkupplung Sale - Banggood Mobile