Industrial designer Eric Strebel has already shown us some great techniques for building foamcore models, but this set of tricks takes the cake. Here he builds a model of a Bluetooth speaker, the design of which calls for both conical surfaces and compound curves, and reveals some clever techniques that come from decades of experience.
One particularly neat trick is that he constructs the frame of the model to be adjustable, so that he can play with the proportions in physical 3D to fine-tune them. He also shows you how by thinking ahead a couple of steps, you can create very accurate patterns using paper and can then transfer them to the foamcore.