In his prototype he used an 18v angle grinder, which I think would do a decent job blending. Given the blender setup seems to be one of the key features, I thin

In his prototype he used an 18v angle grinder, which I think would do a decent job blending. Given the blender setup seems to be one of the key features, I think more of the feature budget will go towards the blender. If they upgrade to a higher rpm motor for production, I believe it would be sufficient for making drinks. Prototype build: http://www.instructables.com/id/Cooler-with-Blender-and-Bluetooth/?ALLSTEPS http://www.instructables.com/id/Cooler-with-Blender-and-Blue...