Modding a Lawnmower into a Shredder / Mulcher
Hello everyone. I have a simplelawnmower with a briggs 6HP motor. I want to use it to shred/grind aged horse manure compost in the easiest way possible. The mower has a side shoot, but it has a spring loaded trap door covering it right now. It also has a trap door for a back discharge bag, which is also closed and I don't have the bag, I have thought of 2 options for this myself.
1) Cut a hole in the sheet metal base of the mower beside the motor, on the left hand side if you were pushing the mower, so that I can shovel in the manure.. Cover the bottom of the mower under the blades with 1/4 - 1/2" hardware cloth. Elevate mower off the ground on cinder blocks over tarp. Hoping it would shoot the shredded mulch out the bottom, through the metal hardware cloth onto the tarp to be collected.
Problems I foresee : If the regular discharge outlet on the right side of the mower blows grass out, will my hole i cut in the left side of the mower suck inward, or also blow out? Obviously this wouldn't work if the area I'm trying to shovel in is blasting air out. Would the shredded compost be blown downward? It's really the only place for it to go except the hole I would be shoveling in at.
This is the simplest way I can think of. I would prefer to do something like this. Perhaps if it wouldnt work stock like this then I could maybe reverse the blade? I don't have a welder, btw.
2) Much cooler option but I dont really have the time, material, or know how would be to run a pulley to a seperate trash can with its own blade at the bottom and wire mesh under that.