Micropositioning using cheap mouse cameras with Arduino Library
2D position finding using the “Christopher Carter Algorithm”
Absolute 2D position encoding/decoding using a Gray Code pattern.
Position is resolvable generally to 1 pixel, in this case measured at about 2.4 mils (about 70um).
[tim.cexx.org]
I can envision using the tracking device to verify the printing process.
If in front of the fusion path is missing structure, it could either stop and throw an error, or it could call a subroutine, map the missing structure with the optical sensor, then fill the void in, and then continue on where it left off at.
A2
Video's
Optical mouse hack #1
[www.youtube.com]
Optical Mouse hack #2
[www.youtube.com]
Arduino Library
[tim.cexx.org]