ControlBoard

Here is the hole saw and the 4" hole it cut in the 1/2" thick fiberglass, plexiglass board. That hole cutter is handy but dangerous. Four small holes and the controller cooling fan is installed on the underside of the board.

Here is the hole saw and the 4″ hole it cut in the 1/2″ thick fiberglass, plexiglass board. That hole cutter is handy but dangerous. Four small holes and the controller cooling fan is installed on the underside of the board.

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