The Doorman with approvements
thingiverse
I couldn't resist making modifications, so I'll share them here. I used: The original mask with the mini PIR sensor mounted in the nose. The Eye, ball and socket found at https://www.thingiverse.com/thing:3645735. I replaced the servo holder with a mini 9g servo like the HXT900. For eye movement right & left, I employed pull/pull servo control; the string connected to the servo arm must match the width of the eye's attachment. Lower eyelids were used, although they don't do much, they add weight that causes them to lift when upper eyelids open. A few other changes have been made, and more will be revealed soon.
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