Wooden Marble Roller Machine : 22 Steps (with Pictures)
Step 4: Track. Start by cutting down strips of 1" x 1.5" wood. These strips will be used for the vertical post and the two gussets. The track is where you place the marbles. I used a router table to cut the slot. I then went back and drilled the 3/4" and 9/32" holes.
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