A little glass can go a long way.  Especially if you perch it on a modified drill chuck that’s attached to position sensor from a small aircraft, hinged off of a weed whacker crank shaft by means of jigsaw blade-guide, that all sits on a couple of espresso grinder burrs and is flanked by a pair of bicycle brake rotor leaves…

Approximate Dimensions

7″ Wide & 10.5″ Tall

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