Wednesday, April 12, 2023

Kunz cabinet Scraper Modifications


I have a Kunz #80 cabinet scraper. It's basically identical to the Stanley #80, and Veritas also make one, but both the Stanley and Veritas versions are two or three times the price while being functionally identical.

Where the Kunz falls down is in its fastening and adjustment screws. They're all standard M6 threads, which is handy, but the screws holding the bar at the back are just slot-heads, requiring a screwdriver for adjustment, and the front thumbscrew to adjust the blade deflection is tiny and difficult to tighten.

I've used my Ender 3 3d printer to make bigger, more easily manipulable thumbscrew heads for all three. The back screws are limited in diameter to 16mm by the geometry of the scraper body, but they never need to be super-tight since they only need to hold the bar and blade in place. The front knob can get up to 32mm diameter, allowing plenty of surface for my cranky old fingers to tighten or loosen it in the blink of an eye.

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