This instructable documents how to create your own inexpensive, energy conserving, bike powered blender. Since appliances account for over 20% of your electric bill, this is one less energy consuming machine in your house. And making a fruit smoothie is twice as good for you as before; both in nutritional value, and also in the exercise you get. It isn't an incredibly difficult build, and even the most inexperienced Maker should be able to complete it in less than 3 hours (not counting glue drying time).
Step 1: Necessary Materials
Blender: Theoretically, any blender would do. I'm using a Hamilton Beach personal blender that was practically made for this project. The two key things needed are that:
1) The blender jar locks in place
2) There is a transmission disk, instead of the motor connecting directly to the blades
A M4-.70, 19cm long bolt: In a perfect world, a bolt of this size would exist, but the longest I could find was a 7 cm. If you can find one, great, otherwise you need: 3- 7 cm, M4-.70 bolts and 2 coupling nuts of the same size.
Old bicycle inner tube
3x4 metal plate
2- 1.5 in. diameter wooden wheels
4- 2 inch bolts of any size, and 4 matching nuts
2- 1 inch wood screws
2- M4-.70 Tee nuts
Bicycle rear rack: any rack should do.
Step 2: Tools needed
Hack saw and table top vise (only if you need to make the 19cm bolt)
Drill and drill bits
2 1/4 inch hole saw