Well, here is the "Troll". Total cost is about $8 for the casters from the China Depot (Harbor Freight). I took a piece of scrap steel from a building project--the galvanized angle--and welded a piece of unistrut I had laying around from another project. Then I took apart one of the 2 double casters I bought and used sex-bolts left over from door closures as axle studs. I just drilled the 3/8" hole and hammered them in, hoping the knurled ends would hold them in place. It turned out to be a bit of a tight fit, so I welded them in place, too. The wheels are set up to put the angle very close to the ground. Too close, in fact, because when I tested the whole thing with a 12' sheet of drywall, the slight imperfections in the slab over 12' caused the board to rub the floor. I fixed this by gluing a piece of scrap Corian (I had laying around from a kitchen remodel 4 houses ago) to the top of the angle in order to raise the board up about 5/8". The double caster is mounted higher so that the wheels don't contact the ground until you tilt back the handle a bit. In all, it works as intended.
Well, here is the "Troll". Total cost is about $8 for the casters from the China Depot (Harbor Freight). I took a piece of scrap steel from a building project--the galvanized angle--and welded a piece of unistrut I had laying around from another project. Then I took apart one of the 2 double casters I bought and used sex-bolts left over from door closures as axle studs. I just drilled the 3/8" hole and hammered them in, hoping the knurled ends would hold them in place. It turned out to be a bit of a tight fit, so I welded them in place, too. The wheels are set up to put the angle very close to the ground. Too close, in fact, because when I tested the whole thing with a 12' sheet of drywall, the slight imperfections in the slab over 12' caused the board to rub the floor. I fixed this by gluing a piece of scrap Corian (I had laying around from a kitchen remodel 4 houses ago) to the top of the angle in order to raise the board up about 5/8". The double caster is mounted higher so that the wheels don't contact the ground until you tilt back the handle a bit. In all, it works as intended.
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