It is geometrically given as impossible to trisect the general angle using only an unmarked straightedge and compass, as shown at en.wikipedia.org/wiki/Angle_trisection and many other sites.

Should it be geometrically possible to locate a given acute angle within the automatic trisecting model the result will be a form of solution to the trisection problem

This will raise an interesting question as to a constructible general trisection and the above-mentioned accepted general trisection impossibility rule.

Diagram 1 below:  “Construction and trisection of any chance acute angle” explains the basic outline of the automatic trisection model.