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Cut the board
The PCB must be cut according to the size of the circuit to make.
Also, it is mainly related with the size of the equipment to incorporate the PCB into.
When cutting the positive exposure printed board, the attention is necessary.
The sensitizer which reacts to the ultraviolet rays is painted to the positive exposure printed board. Because it is, it is necessary to cut in the place which isn't exposed to the ultraviolet rays when cutting the board.
I cover the paper to the thing except the cut part, and it stops with the cellophane tape and cut it. When cutting, I make the sensitizer surface the upward. This is to prevent from being hurt in the sensitizer surface. It is necessary to be careful of the scraps which is included among the paper, too.
This time, I used the aluminum packing of the printed board as the cover.
