TLDW #22 - Repair broken Natural Waterstone with Urushi @islandblacksmith

Uploaded June 2019 | Updated September 2026, 4 days ago

**WARNING: This is the longer process version intended for serious students of knifemaking. Carving a cypress base and repairing a broken natural Japanese waterstone using urushi lacquer. The stone is a Kumamoto binsui-do, approximately #700, from Monotaro in Japan. Urushi is from Watanabe~san in Tokyo: urushi-watanabe.net

TLDW #22 - Repair broken Natural Waterstone with Urushi

Museum Forge part 6/7 - recycling farm equipment, making aku

$3 minute forge and 5 minute forge making...bring your own bellows! diy Building two examples of quick and simple diy sideblast charcoal forges with found and reclaimed materials to demonstrate that lack of equipment and materials should not be a major obstacle. See more in-depth forge builds on the bladesmith forge building playlist: https://www.youtube.com/playlist?list=PLBJ5AOs7cMwCSinW7foaiHFZKbZDkasQL Ways to improve these concepts include: mixing copious amounts of chopped straw or charcoal powder into the clay to make it refractory, using high temperature kiln bricks, making the walls higher and longer, using the clay to narrow the tuyere to about 1sun/3cm right where it enters at the bottom side of the forge, putting a barrier up to protect the fuigo (and allowing a shorter pipe), allowing the clay to dry before lighting the forge, etc... Note that if the pipe is galvanized best fit with another section of non-galvanized or at least file off the last 2 inches of zinc in case your tuyere accidentally gets heated to an orange yellow heat and burns off the zinc causing toxic fumes... Full traditional swordsmith forge build documentation here: http://islandblacksmith.ca/2017/01/building-traditional-swordsmith-forge/ Smaller tanto forge build here: http://islandblacksmith.ca/2017/04/building-a-charcoal-tanto-forge/ Fuigo box bellows: https://www.youtube.com/watch?v=3Ecetg1B7y4&t=0s&index=16&list=PLBJ5AOs7cMwCSinW7foaiHFZKbZDkasQL$

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TLDW #22 - Repair broken Natural Waterstone with Urushi