Constructing the PE Glasses Mount
Constructing glasses mount
- Finding dominant eye
- Overlap your hands together at arms length in front of
you. Leave a space between them, such that they 'frame' an
object if you look through them. Find an object across the
room, and look at it through this space. Slowly draw your
hands back, and they will end up centered on one eye. That's
your dominant eye.
- You want to put the Private Eye on the non-dominant eye!
- Marking general location
- Put on the safety glasses and look at a person
standing directly in front of you. Make sure you are looking
straight ahead -- otherwise the mount will be off center.
- Have the person you're looking at put a mark on the glasses
directly in front of your eye. This will be where the center
of the PE display will go.
- Hold the PE facedown, with the center of the screen over the
dot you just made. Trace around the outside edge of the
screen. This outline is a little bigger than the size hole
you need to cut.
- Make sure you leave enough space around the frame and
nose piece! You need this support for the frame's stability!
- Cutting the hole
- The best device to use here is some sort of dremel
tool. Have lots of extra sanding discs, as the plastic is
rather tough and wears them out quickly.
- It's a good idea to protect the other side of glasses. It is
very easy to put a big scratch through the other side on accident. The
best way to do protect the glasses to wrap the opposite side in
tape.
- Start cutting the plastic out from the center of the marked
square. Try to keep the edges as square as possible. Hold the
PE up to the hole from time to time and see how the fit is
being made.
- Note... Start with a small hole, and gradually
enlarge as needed. Notice that whole PE doesn't fit through
the hole! There is a little bit of a lip around the edge of the
screen. The hole should be just big enough for the PE to slide in up
to some part of the lip.
- Test fit
- When the hole looks about the right size, go ahead and put
the glasses on and insert the PE into the hole. You want to
adjust the PE so that text appears directly over where you
are looking. Look directly at a person's face, and the text
should appear centered over their nose. (Having the computer
on helps a lot at this stage)
- Continue widening the hole until you get a good fit, and the
PE lines up correctly.
- Gluing PE in place
- Once the PE is where you want it, use tape and rubber bands
to secure it in place. This is a little bit tricky, so having
someone to hold the PE in place while you tie it down might
help.
- When the PE is secure, put it back on to make sure it is
still where you want it, and make necessary adjustments. Once
you're sure it's all lined up, grab your glue and cover the
outside joint where the PE meets the glasses. Be careful not
to get glue directly on the screen!
- After getting a good line of glue around the PE, do
everything you can do to make sure the PE will not shift as
the glue sets. Be very paranoid about this! Add extra tape,
string, rubber bands -- whatever it takes to hold this
perfectly still for the next 24 hours. Normally, we just wrap
the entire unit in tape to protect it.
- Choice of Glue
- Stuff we use: Silicon II, made by GE. Do not wear
contact lenses while glue is wet. (Fumes will affect contact
lenses until dry)
- Hot glue guns: We haven't tried, but might work. If you use,
please let us know!
- Other stuff:
- Additional stuff you might want to do
- You might want to cut out the entire other lens. If you
normally wear glasses or the other lens has a habit of being smudged,
this will be especially useful. Make sure you leave enough plastic
around the bottom frame and nose area so that the glasses won't
crack!
If you cut it too thin, the frame will break with use:
- You also want to do something with the PE cable. A few
few turns of a rubber band works well, as do the plastic
cable ties.
The finished mount:
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