What is Surface Roughness, Texture Topology, Finishing? - EXPLAINED | Some Serious Engineering - Ep8
You DON'T NEED an Expensive Mold to Make PLASTIC PARTS | Vacuum Casting | Serious Engineering - Ep21
These 2 GUNS can identify FAKE METALS - Positive Material Identification | Serious Engineering: Ep26
5 SIMPLE STEPS for Geometric Dimensioning & Tolerancing | GD&T EXPLAINED | Serious Engineering: Ep27