Watch Japanese Ko-Bunka 100% Homemade | DIY in New Channel | Channify

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Published Aug 9, 2019
Channel Black Beard Projects

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Making a japanese chef's cutting tool starting from raw materials with many of the tecniques I have shown in previous videos like stabilizing wood and making liners from scratch. The materials are: 2mm thick Nitro B Stainless steel for the blade, mild stainless steel for the guard and a stack of felt and paper liners, stabilized cork and stabilized elm wood for the handle. With this build I wanted to try a half mirror half satin finish on the blade. I tought it would have looked cool but it looks a bit more like a not fully finished blade. This is a gift to my uncle by the way so I can always change my mind later and make it full mirror or (much easier) full satin. You never try, you never know! Here are some of the videos where I go in more details about some of the tecniques used in this video: Stabilizing wood: https://youtu.be/E-P3KWctkk0 Homemade Liners: https://youtu.be/8tIaEAXYv-k Stabilized Cork: https://youtu.be/PZnjt6Vr62w Stainless steel: https://youtu.be/V5Eg0yxTEkE And here are some of the videos about the tools I used: Vacuum pump and chamber used to stabilize: https://youtu.be/BeiW_37rS-U Hardening oven: https://youtu.be/5MNwqwmrWgQ Tempering oven: https://youtu.be/uILynSeLuzU My lovely drill press: https://youtu.be/BZmqVw7MJsg Index of operation and materials: 0:04 Mark template with spray paint and small magnets 0:25 Rough cut on metal cutting band saw 1:01 Refine profile on 2x72 belt grinder 1:30 Make this transition nice and round with a die grinder 1:48 Surface prep for the texturing up to 120grit sandpaper 2:12 Taxture done with two ball peen hammers 2:40 Preparation for the heat treatment, see video linked above for more info 3:30 Plate quench 4:12 Tempering 4:30 Grind bevels, all done after heat treatment being carefull to not overheat 4:50 Finishing the blade 5:22 Buffing the bevels with a cotton wheel and polishing paste 5:50 Elm wood stock 6:12 Check moisture content before stabilizing, see video above for more info 6:55 Pulling vacuum! Again, see the dedicated video for more info 8:30 Black felt and peach coloerd cardboard liners, check the video above for more info 9:54 Leftover piece of stabilized cork, there is a video about this as well linked above 10:00 Hadnle stack glue up with slow setting epoxy resin 10:55 Drill hole for tang and dowel 11:07 Preparation of the stainless steel guard for drilling and grinding to fit the blade 11:50 Notch on the dowel cut and ground to fit the tang 12:20 Final glue up with slow setting epoxy resin 13:26 Grind off excess material with 2x27 grinder and a fresh 40grit belt 14:00 Hand finishing the handle up to 1000 grit sandpaper 14:30 Boiled linseed oil as finish 14:55 Stropping the edge with leather and fine polishing compound. This is ground to zero, no secondary bevel. Thanks a lot for watching, I hope you liked the video! Suggestions and comments are welcome. Leave a like and share to anyone who might be interested! ★Patreon★ https://www.patreon.com/blackbeardprojects ★Website★ http://blackbeardproject.com/ ★Follow me★ Facebook ► https://www.facebook.com/BlackBeardProjects/ Twitter ► https://twitter.com/BlackBeardProje Instagram ► https://www.instagram.com/black_beard_projects/