a dummy spindle adapter for mounting a Sharpie fine point Permanent marker.
Ive attached other adapters for the following other marking pens:
Different pens have Different diameters and tapers.
Clamps by using a M6 nylon locking nut and a m6x25mm socket head cap bolt. This allows the use of the same 4mm hex wrench like the rest of the shaper system.
The author marked this model as their own original creation.