In this demonstration, pinstriping great Glen Weisgerber demos the finer points of paletting a pinstriping brush for optimal results.
We all know styrofoam. It’s that white light-weight material that protects your goods while it is shipped. It may come as chips, molded pieces or even raw blocks and sheets. It’s used as insulation, shock absorber, modelling material and much more. But most of all, it is cheap! You can buy big blocks of it for a few dollars or find big pieces in your nearest dumpster for free! This is probably why most people see it as trash and not a building material. Well Make: magazine is here to show you how useful it can be! In this particular tutorial they make Halloween tombstone props but if you watch the video, you should easily see how these techniques can be used to make almost any form out of cheap and feather light styrofoam! And by the way, you don’t need special tools like soldering iron or a hot wire foam cutter. Tools like scissors, files, knifes and sandpaper can just as easily be used, although the surface might become a bit rougher. But since acetone (nail polish remover) can melt styrofoam, perhaps you can use a acetone damp paper towel to polish those surfaces? Now that would be a neat experiment!
We all uses DC motors in one way or another. Even if you’re not building a machine that have DC motors, you still engage them when you use a machine to brush your teeth, shave your hair or get a buzzing sound from your mobile phone. But do you know how they work? Just check this video from Learn Engineering and see if you actually know all the detailed science that goes into making a modern DC motor.