Design and build a pedal-powered mulcher/chopper from old bikes!

[Lars2i]

##Update

This challenge spread across the globe over the year and was repeated in 2017 also in Berlin. There are Tutorials and Presentations for it here:

Workshop: Design and Build a Pedal-Powered Shredder

Hello everyone. This is again an open call for participation. All ideas are welcome. Short Description Last year, a fellow gardener from Allmende-Kontor at the Tempelhofer Feld, Dax, started the discussion here about building a pedal powered shredder: Design and build a pedal-powered mulcher/chopper from old bikes!. The workshop took place at OSCE Days Berlin 2016, a working prototype had not been build there, but a lot of good ideas had been shared. One of the participants, Maria from Sao Pa…