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Since a mouse is relatively cheap and small, be creative with this
step. Draw some designs out on paper or in your mind. If you want
to cut shapes rather than circles, a Dremel may be your tool. But
a word of warning with a Dremel is that the mouse is small and will
be hard to hold with your hands while cutting. Have a partner stand
by and help you, and hold the mouse top while you dremel away. If
you have no friends or aren’t too handy with a dremel, a small
file will be more accurate and much easier to handle. Before you do
anything however, separate the mouse cover from the actual PCB before
you drill. Take the screwdriver and loosen all the screws (normally
found under the mice feet), then wiggle the mouse cover from the PCB.
Be careful of the wheel; it may fall out, and I’ve found it’s
excruciatingly hard to put back in place because of all its springs
and connections.
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I first started my mod with a bunch of circles. Very small circles,
with a 1mm drill bit. I made many of them (hence what my friend
calls “chicken pox”). Then I drilled to larger holes
off to the side, where the glass rods will be inserted to. This
step came later; these pictures are just the small holes.
That is a picture
of the drill bit in the mouse. This particular mouse cover was rather
thick, so I applied pressure when I drilled. Drill as many holes/shapes
as you like, then if you need to, sand the mouse. In my case, I
had no need to do so, so I left it the way it was.
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