It Worked For Me: Bandsaw Guides

by Rick Rubin

Originally published in American Lutherie #127, 2016

I purchased an old 14" Rockwell bandsaw from the late 1940s at a garage sale, and it didn’t take me long to want to replace the guide blocks. Steel-against-steel didn’t seem like a great idea. They tend to induce unwanted vibration. They also heat the blade which can, in the worst case, draw some of the temper from it. I looked at some of the roller bearing guides, but I didn’t like any of ones I saw that fit my saw, and I didn’t want to lay out that much money.

I remembered looking at an early-20th-century Crescent bandsaw and remembered that it had the remains of some dense wood for the lower guides. On investigation, I realized it was lignum vitae, also known as guaiacum. Lignum is incredibly dense at 84 lbs./cu. ft. and is waxy/oily. I recalled that lignum had been used as self-lubricating pillow-block shaft bearings in ships. In fact, it’s still used as an industrial bearing material, from ships to hydro generators, and is being touted as an enviro-friendly alternative to eliminate greases and oils that can leak into water supplies.

I had some lignum vitae; so I used the original guide blocks as a pattern and cut the wood blocks to match. I’ve used them ever since. I can pinch them against the blade without concern and resurface them on the belt sander as they wear. I’ve run my original set for over eight years and still have a lot of service left in them. ◆