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Rob Cosman SawPlane Blade Sharpening with Rob Cosman at IWF Presented by Woodcraft

Plane Blade Sharpening with Rob Cosman at IWF Presented by Woodcraft

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  1. There is usually room to wiggle the blade within the race in the plane. Secure blade in plane – not so tight you can’t advance, retract or move it side to side. Turn plane upside down & sight along base from nose/front of plane toward protruding blade using a back light. Blade will show in shadow. From this, easily determine if blade is parallel to the bottom. Make necessary side to side adjustment & advance or retract – tighten it up and test for cut depth. Sounds archaic but it still works.

  2. .004 from the edge of the iron that is, in order to break a smoother chip. Set properly, it's quite effective at eliminating tearout in stuff that probably should've been left to the wide belt sander.

    (that, and while the argument can be made that it's good for people with a minimalist kit, I know many more with a large kit who exercise minimalist use instead).

  3. The second iron is definitely useful if you are limited to one plane and do need it to break chips, but it's just part of the "many ways to skin a cat" discussion, and is only necessary in something that would tear out but where you still want a bright surface.

    Its invention practically eliminated high angle bench planes in the 1800s, which gives you an idea regarding its effectiveness in breaking chips.

    But the combined angle needs to be steep enough and it has to be set about .004".


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