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Step 11The on/off switch
Where to put it
Now that we can put in the battery-compartment with the PCB on top, we can figure out where to put the on/off switch. It just fits on the side, above the PCB.
Making the hole
First I measure where the button comes and draw this on the aluminum with a sharpy. I saw into the aluminum several cuts approximately 2mm from each other. With a plier I break out the little 2mm peaces. I make the hole smaller than it should be. Now I put the bottom-piece in the vise with the the sharpy-line just showing. With a vile I make the hole the correct size. It can never get to big because the vise is protecting the rest of het profile.
Now that we can put in the battery-compartment with the PCB on top, we can figure out where to put the on/off switch. It just fits on the side, above the PCB.
Making the hole
First I measure where the button comes and draw this on the aluminum with a sharpy. I saw into the aluminum several cuts approximately 2mm from each other. With a plier I break out the little 2mm peaces. I make the hole smaller than it should be. Now I put the bottom-piece in the vise with the the sharpy-line just showing. With a vile I make the hole the correct size. It can never get to big because the vise is protecting the rest of het profile.
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