Hi Tom, Great demonstration on your new sharpening jig, looks decent and easy to use and if it brings old chisels back to life it must be worth it. Great video, Take care
I take it that this is only of use after you have flattened the backs on conventional stones. Looks useful for primary grinding, but puzzled by the use of such coarse stones for the micro bevel (I assume that is what the 27.5 deg is for). I follow the Rob Cosman method- the micro bevel is put on with a 16000 grit (ceramic) stone, and takes a few seconds. When that is too large, a tertiary bevel can be used. Only after many sharpenings is the full bevel re-ground. Grinding to 1200 grit is very coarse, and, if not using finer stones, will require a lot of lapping. Personally I use 1000, 6000, 16000 grits (first two only for re-grinding the bevel and initial flattening of the back); no lapping (stropping) is required.
