how how to build a rock crusher from an old lawnmower

Apr 04 2013 Ripped the old lawnmower apart shortened the bar down to 12 its size and placed the old switch on it then figured out spacing to mount batterys and the built in Recarger yup no need to buy a battery charger used the one provided mounted all of these then pulled the motor off the pump diy rock crusher home built rock crusher plans