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    Third Arm knife grinding jig

    No, everything depends on the vertical rods being MUCH longer than the knife - see above explanations. Unless, however, you are imagining sliding the base plate on the work rest.
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    Third Arm knife grinding jig

    I do apologize. I assure you that beneath my sour attitude is a love for the craft and respect for everyone in it. I have this link posted on several places online and I'm getting hammered with naysayers. Nothing was directed at you personally, I'm sorry I wasn't more pleasant.
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    Third Arm knife grinding jig

    Thank you Matthew, I'm honored. BTW I was at Ashokan in 2007 and I think you were too? Anyway, on most of my throwers, I've done so many that I am faster freehand - especially the double-edged knives, because they would require 4 change-arounds in this parallelogram jig, and the change-arounds...
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    Third Arm knife grinding jig

    It isn't for sale, which means it hasn't "hit the market". This is a trade secret that I am sharing with the community for knifemakers' personal use. It is not a perfected product, but rather a rough concept that can be adapted, expanded or improved upon in an infinite number of ways. The...
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    Third Arm knife grinding jig

    Sure, but not going to happen anytime soon. I grind with a waterspray system so the camera would need to be totally waterproof, which I don't have. I'm a bit confused as to why people are insisting on an action video when there are photos of the result and a video showing the stance, motion...
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    Third Arm knife grinding jig

    Thank you! Lets be honest - when you do a full flat grind, where the grind line is "off" the knife, a lot of errors may be hidden. I really wanted to see this jig give me a nice grind line that is parallel to the knife edge, and so far I'm there (or 99% there - close enough for the market I...
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    Third Arm knife grinding jig

    No worries, it is a goofy looking thing that is awkward, especially because it goes limp when you let go (something I want to address with springs on future versions). As a throwing knife maker, I am often dismissed by the community so I'm sure some of that is coming out as defensiveness on my...
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    Third Arm knife grinding jig

    Why thank you sir, means a lot - especially coming from you. As I mentioned, it all started with Nathan's video from 2014.
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    Third Arm knife grinding jig

    No worries - I have made a career out of throwing knives that have steep scandi-type grinds. I've done (and sold) about 15-20 knives in this jig - knives that are outside my comfort zone with more traditional flat grinds. Because of the freedom of motion, it is quite easy to screw up the...
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    Third Arm knife grinding jig

    Thank you. It is clearly not for everyone - that is ok, because the good news is no one has any obligation to like it or use it.
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    Third Arm knife grinding jig

    People seem to be under the impression that I am displaying a hypothetical rather than proven device. I'm not sure why. I say the following with respect. I am a professional full-time knifemaker; I raise three kids, pay a mortgage, and make car payments purely with knife sales. I've been in...
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    Third Arm knife grinding jig

    Video explains it all
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    Grain direction on O-1 and A-2?

    The plates are cut into squares first.
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    Does anyone know if 80crV2 steel is made in China or here in the states?

    http://www.bestar-steel.com/site_files/files/material_data/BE2235.pdf
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    my new website!

    Looks amazing. It also appears that the issue with your 'Home' and 'Workshop' links is the screen position of the link. I am able to activate the link by clicking just below the word 'Workshop.' See screenshot.
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    Free excel-based accounting software

    I've updated this program. New, more concise video at http://youtu.be/B7gTSl9DdXw (old vids have been removed).
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    Free excel-based accounting software

    I wrote an accounting program that runs within excel. You can track your equipment assets from year-to-year with depreciation. It allows you to automate data entry and categorization. Before watching the vids, make sure you are familiar with double-entry accounting, accounts payable and...
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    Wave accounting?

    I checked it out... it seems OK, but with any program like this, the bottleneck is data entry. Also, waiting for each webpage to refresh is annoying if the wife is on Netflix or whatever. After checking out Wave, Quickbooks, and AccountEdge, I wrote my own software (some javascripts and...
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    Who Is Making The Best Drill Press For The Buck??

    I have a Rigid. When I bought it, it seemed to be the best value (much cheaper than Craftsman for comparable HP etc). It's been good to me; goes down to 300 RPM which is nice for countersinking. The bearings arenot rigid enough to plunge with an end mill (lotsa shakin), however - though this...
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    Drill Guide/Stop Collars

    I was disappointed with stop collars until I made my own. For a 5/16" drill bit, I made my stop from 7/16" square stock, about 3/4" long, with two opposing set screws. And I made it from W1 that I hardened. The set-screws fit into the flutes and do not mar the cutting edges at all. The...
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