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Made by Shinwa

Mark, I can explain why I give it a thumbs down. The video purports to describe how to achieve an accurate 45 degree jig, emphasis being on "accurate". It does nothing of the sort. Cutting wood to an "accurate" angle, 45 or any other value, is "much" harder than it seems, this video doesn't do anything special about it.

@@raphaelklaussen1951 You don't think those cuts were accurate?

@@darkmagna9004 They are not, especially the 45 degree one. They all rest on the assumptions that the square is accurate, which you don't know that it is, and that the two sides of the wood planks are perfectly planar and perfectly parallel, which is not the case. The 45 deg. also introduces the glue thickness as a variable. Look at William Ng video on the 5-cut method for perfect 90 deg. cut. That is an example of what "accurate" means.

@@raphaelklaussen1951 fair enough. But for my purposes, any square out there is going to be accurate enough for anything I'm going to build, or for my ability to cut accurately. The square not being 90° or 45° will never be the limiting that prevents me from making perfect joins. Everything else that I do carries more error than the square

@@darkmagna9004 Fine, but don't call it "accurate". Accurate doesn't mean "good enough", it means it has to pass a suitable accuracy test. For a 45 deg miter, the accuracy test is the accumulated error over four joints. That error must be less than 0.001 in over the length of the miter. Even if your square is sufficiently accurate, your transfer to the wood is not (because marking tools aren't perfect, are not held perpendicular, etc.), that is why you can't get that level of accuracy with just a square, no matter how perfect the square itself is.

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