jaw rock crusher

I decided to make a jaw crusher to process some construction debris I had laying around. I began the project with the idea that it would be mobile. I started with an old boat trailer and started building accordingly. I used pillow blocks and 2 bolt flanges to support the 1.5" driveshaft. The jaw has 3/4" swing at the top and about 1/2" an inch at the bottom. It uses a 5 hp briggs engine for power, a trailer tire and rim for a flywheel, and a yamaha blaster chain drive hub with the sprocket removed.