Hey Bob,
I like your idea. I've been making something very similar using a ice auger. The 2 cycle motor and reduction transmission are mounted to a plate bolted to the bottom of the trans.
A 5 foot piece of 2" galvanized pipe is welded to
the plate as a housing for the driveshaft that is connected to the output shaft on the trans.
A 6" piece of 2 1/2" pipe with the c-clamps welded to it has a 3/4" nut welded over a hole and a 3/4" T handle bolt is screwed into the nut. By loosing the bolt you can adjust the height or depth into the water you want to cut by moving the motor and housing up or down.
The bottom of the drive shaft is connected to a wobble box from a small walk behind sycle bar mower. We took a 5' section from a tow behind sycle bar mower to use as the cutter bar but figured it was too heavy so now have 4' section of cutter bar from a combine grain head.
The whole thing will mount on the front of one of the pontoon boats. Also been thinking of a way to catch and pick up the weeds as they pass by the back of the boat to save raking later. Wonder if you might have any ideas?
We really don't have much left to do on it but got sidetracked mounting a 48" 3 blade mower deck off the side of a 5' Brush Hog. A 8 H.P. motor will be mounted on top of the Brush Hog deck to drive the mower that will suspend out over the edge of the water to cut the strip of grass that the the Brush Hog leaves right along the waters edge.
Always something to do with the pond but wouldn't have it any other way.
Dan
