Score Unit
A scoring blade cutting in conjunction with the main blade is arguably the quickest means of getting chip-free cuts on one way machine but would rather purpose series with a combination one, at least such mine. Indeed setting and adjusting the scorer takes time and one of the workarounds described in
that main paper allows nearly the same outcome without accessory. In short the scoring blade grooves the workpiece bottom face rotating the same direction the operator feeds then the main blade rips, as shown in the below drawing.
The adjusting scorer matching the main blade kerf is operated by an independent induction motor that scores the surface by climb cutting and allows the fine main blade to cup cleanly.
The removable unit glides along a very fitted pin also working as pivot and locks against the tilting saw trunion with a metal knob. I tuned up the teeth protruding once and for all with two socket set screws and their lock nut but the below picture surely explains far better.
The adjustable scoring blade consist of two twelve-tooth blades and a set of shims aiming kerf from 2.8 to 3.6 mm. Matching the main blade kerf demands much care and I always use that main blade with the scorer, checking after every sharpening. However lining up both blades can not be easier. A sickle spanner enables lateral adjustment from over the saw table and you may perceive the aperture in the top photo.