USE A SLAB ROLLER: A VIDEO HOW-TO
HOW TO USE A SLAB ROLLER
Step 1: Wedge clay.
Step 2: Clear the surface of the slab roller, remove one spacer from under the rolling surface and lay canvas under and on top of your wedged clay.
Step 3: Begin rolling. Don't try to roll faster than necessary and if the roller jams, do not force it; back it up and figure out what it is catching on (your clay may be too thick).
Step 4: Flip your slab over, rotate it 90 degrees and reinsert the spacer under the rolling surface.
Step 5: Roll again.
Step 6: Uncover, smooth with a rib and transfer to a board.