It might be beneficial to add a laser pointer arm to the setup so that the RepRap can point out locations that require user intervention such as component placement etc. If we use a blue LED for photosetting compounds this may suffice instead. Might also assist with alignment.
Of course, addding a camera as well that plugs into the PC would provide a 3D scanning platform.
Vik :v)
If you supply the laser diode...
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