Hold
the aluminum plate as shown and carefully press and rotate the "pinhole drill"
until the tip of the needle barely shows through on the other side.
Hold
the aluminum plate as shown and carefully press and rotate the "pinhole drill"
until the tip of the needle barely shows through on the other side.
When
you see the tiny needle point sticking through the other side, stop drilling. Be careful
to not push too hard on the "pinhole drill"--it must not stab completely through
the aluminum on the first try.
Carefully
sand the tiny hole made by the needle's tip (again, a Dremel sanding bit can be used
instead of fine sandpaper or emery cloth). Then, drill again, carefully and slowly until
the hole is a bit larger. Sand the hole again on both sides. Drill again, sand again. It
should take three or four drilling and sanding steps to get a beautiful, round
1/100th-of-an-inch-in-diameter pinhole "lens"! Finally, clean the hole by
running water through it and patting it dry with a clean paper towel. Try not to touch the
hole because oil and dirt from your fingers may partially fill the hole and cause it to
take less sharp pictures.
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