About this 3D model

This is the first working 3D printed shredder for kitchen food waste. Perfect to make compost. http://youtu.be/1erMSmSHajU Printed from PLA. How to assembly : http://issuu.com/marcusthymark/docs/boom_assembly/0 First version breaks at 25Nm torque, second version at 50 Nm torque. The version uploaded here is number 3 and hold up to 74 Nm torque. ( Then break ) Shredding some chicken bones : http://youtu.be/A4rg--VEXVM How to assemble vid : http://youtu.be/j4a-f51Ypc0 Metric ball bearings : SKF SS6006