Jacob
What goes around comes around.
Just picked up another box of tatty old tools (accidental ebay bid after a few pints). Includes several planes 4s and some woodies. Looking at edges of these and previous mistaken purchases (I'll count them later, must be 30 or so) it has to be said that there are all sorts of rough grinding of primary bevels followed by neater honed secondary bevels, also many distinctly convex over all.
NON AT ALL have the classic text book hollow grind with distinct honed edge, except one which is obviously ex factory and honed perhaps once. They all look hand-held sharpened (slightly untidy), not jigged
These are a random selection of planes from different sources, mostly well used which suggests experienced user.
I think the text book advice is good for getting people started on. Once they have it (and can repeat it) they can then relax and do awful convex bevels just like me! Or rough grinds like many of these. Whatever - as long as the edge is sharp and the process isn't holding up the work.
Text books are mostly for beginners, as are text book techniques.
PS just had another look - the factory fresh ones actually have flat bevels so none of the collection have concave bevels of any sort. It wasn't done - at least not by the several dozen old chaps who last used these planes
NON AT ALL have the classic text book hollow grind with distinct honed edge, except one which is obviously ex factory and honed perhaps once. They all look hand-held sharpened (slightly untidy), not jigged
These are a random selection of planes from different sources, mostly well used which suggests experienced user.
I think the text book advice is good for getting people started on. Once they have it (and can repeat it) they can then relax and do awful convex bevels just like me! Or rough grinds like many of these. Whatever - as long as the edge is sharp and the process isn't holding up the work.
Text books are mostly for beginners, as are text book techniques.
PS just had another look - the factory fresh ones actually have flat bevels so none of the collection have concave bevels of any sort. It wasn't done - at least not by the several dozen old chaps who last used these planes