Doing Things Wrong

Phenolic

Phenolic - good for fixtures, templates, nuts, saddles, maybe even fretboards?

from Wikipedia:

Phenol formaldehyde resins (PF) or phenolic resins are synthetic polymers obtained by the reaction of phenol or substituted phenol with formaldehyde. Used as the basis for Bakelite, PFs were the first commercial synthetic resins (plastics). They have been widely used for the production of molded products including billiard balls, laboratory countertops, and as coatings and adhesives. They were at one time the primary material used for the production of circuit boards but have been largely replaced with epoxy resins and fiberglass cloth, as with fire-resistant FR-4 circuit board materials.

McMaster-Carr


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This is a Martin-style single-acting truss rod. I built it years ago and never used it, and at this point, I never will. I am breaking it up for parts, so I thought I'd post a picture first. It consists of a 10-32 threaded rod in an aluminum channel. At the fixed end, at the lower left, the rod is set in a T-nut and the end is peened (hammered) over to keep it from rotating. The adjusting end is nothing more than a washer between the nut and the channel. Both ends are secured by bending the channel over them, then the center of the channel is cut down and everything is ground to minimal dimensions. You can find detailed directions online.