19.
Mounting the Ribbon
a.
Have the Ribbon Alignment jig already printed.
b.
Cut 4 pieces of 3m double back foam tape into squares about 5mm and put in the indentations of the
ribbon alignment jig. This holes the screws in place while you tighten them.
c.
Taking an edge of the exacto, remove any sharp edge on motor bracket and clips, which will go against
the ribbon
d.
Clean up the motor
i.
Take some scotch tape and stick around the motor magnets to pick off any fine metal that the
magnets may have picked up.
ii.
Clean with some alcohol (don’t use acetone, it will loosen the superglue)
e.
Put the 4 screws used to hold the ribbon element brackets in. Then flip the jig upside down, and then
put the motor in, and flip back over. (so the screws don’t fall out when you put it in the jig)
f.
I also cut a strip of paper about 50mm wide, to cover the motor, while I’m working on it, so for example,
when you are putting on the nuts to save the ribbon in case you drop one.
g.
Put your mask back on.
h.
Take the now corrugated ribbon carrier, and pry it open with your tweezers, so the ribbon can be easily
slid out. Bring it over top of the motor and alignment jig, and slide it out over the middle. Using a
