FRETS.COM
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A 30 year anniversary for
Gryphon's Fret Saw
© Frank Ford 2004; Photos by FF
No, this is not an offer to take on fingerboard slotting. LMI and others offer
that service at very reasonable prices. I just thought you might like to see
our cool tool:
Here's a view of a wonderful fret saw made just about 30 years ago by our friend, Thom Canning, who worked as a tool and die maker for a local Silicon Valley high tech firm. It's all machined from heavy steel and aluminum, and is a very precise and stable tool. | |
The saw runs on a slide, much as a radial arm saw does, and is belt-driven by a small Dayton DC motor. | |
The big box is the speed control, which allows any speed from "crawl" to "scream." | |
Much the same as the blades available from LMI or StewMac, this one was ground from an ordinary 6-inch plywood cutting circular saw blade. It cuts a 0.022" kerf. We have some other blades, including one specifically ground for cutting bar fret slots of about .050." For extra rigidity, there's a pair of heavy balanced steel blade stabilizers. | |
The upper slider rides on a precision ground steel bar and has adjustable gibs to compensate for wear. | |
And, the entire upper assembly is height-adjustable from the back side. | |
Fingerboard blanks get clamped at the ends onto the heavy aluminum carriage. That little bar a the back edge allows the taper of the fingerboard to be set to align the angle of the fret slots. | |
And the carriage runs on a very heavy 1.5" x 1.5" ground steel rail, which is bolted to a half inch thick steel table. | |
Cuts are indexed by this retractable pin which engages the holes in removable precision drilled templates. The whole setup is so tight I can cut a full set of fret slots, and then run back through them to deepen them if I need to without any fear of misalignment or widening previous cuts. | |
Some of the templates. |