The New Wheel Cutting Engine
An Ongoing Saga
The direct index plate must be held firmly in position for each
cut...we don't want any slop here. A spring loaded pin is a
great help in this matter as it does hold place firmly, but also
allows for a quick and easy way of manually advancing to the
next index hole.

The knob which retracts the pin is actually a knurled guitar
knob (Gibson??) attached tightly by a set screw>>>