You need a block of wood at each end the same thickness as the rails and at least 3 1/2" long. The sensor needs to see the board after the rollers fall off for 3 1/2". The rails can not extend...
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You need a block of wood at each end the same...
You need a block of wood at each end the same thickness as the rails and at least 3 1/2" long. The sensor needs to see the board after the rollers fall off for 3 1/2". The rails can not extend...