I recently had need to sharpen a number of abused chisels being a return favour for borrowing a trailer. This trailer has so far accompanied me to the last Boutique Timber Auction AND delivered a sit-on mower to number 1 daughter. Many thanks 62woolybugger!
i used this as a reason (excuse?) to buy a Robert Sorby ProEdge ...I mean who could complain?
My opinions so far are mixed. My current regime is Tormek (JET clone) and waterstone which is not particularly clever at heavy restoration. The ProEdge however is excellent at turning a wounded paint tin opener/ glue scraper/mortar remover into a noble woodworking chisel..or at least the basis for one!
i read in an earlier review (sorry, name unknown) where the reviewer referred to "dubbing" the edge and I now know what he means. The aluminium/ zirconia belts have a pronounced 'bump' at the join and it seems that each encounter with the bump seems to round over all surfaces that should otherwise be dead flat? The Trizact belts however do not have a bump at the join but, as they are only the finer grits, all they seem to do is polish the dubbed surfaces?
in general, I resent sharpening and regard it as a necessary evil so I don't want to make it any more complicated BUT I can't ignore the benefit that the ProEdge brings to restoration as compared to honing.
I do like the hollow ground produced by the 'Tormek' and its benefit in minimising the amount of waterstoning BUT the ProEdge results in a surface that requires a lot of waterstoning to remove the 'dubbing'.
Tomorrow I'm going to take a severely wounded chisel, restore it with the ProEdge, use the Tormek to give a hollow ground back and then finish the remaining 2 flats on water stones, a bit like the relieved back on Japanese chisels?
IF however Trizact make bumpless belts in the coarser grits then Robert Sorbey is really onto something!
in short, the ProEdge;
Back to the shed....
fletty
i used this as a reason (excuse?) to buy a Robert Sorby ProEdge ...I mean who could complain?
My opinions so far are mixed. My current regime is Tormek (JET clone) and waterstone which is not particularly clever at heavy restoration. The ProEdge however is excellent at turning a wounded paint tin opener/ glue scraper/mortar remover into a noble woodworking chisel..or at least the basis for one!
i read in an earlier review (sorry, name unknown) where the reviewer referred to "dubbing" the edge and I now know what he means. The aluminium/ zirconia belts have a pronounced 'bump' at the join and it seems that each encounter with the bump seems to round over all surfaces that should otherwise be dead flat? The Trizact belts however do not have a bump at the join but, as they are only the finer grits, all they seem to do is polish the dubbed surfaces?
in general, I resent sharpening and regard it as a necessary evil so I don't want to make it any more complicated BUT I can't ignore the benefit that the ProEdge brings to restoration as compared to honing.
I do like the hollow ground produced by the 'Tormek' and its benefit in minimising the amount of waterstoning BUT the ProEdge results in a surface that requires a lot of waterstoning to remove the 'dubbing'.
Tomorrow I'm going to take a severely wounded chisel, restore it with the ProEdge, use the Tormek to give a hollow ground back and then finish the remaining 2 flats on water stones, a bit like the relieved back on Japanese chisels?
IF however Trizact make bumpless belts in the coarser grits then Robert Sorbey is really onto something!
in short, the ProEdge;
- Is brilliant at bulk restoration of even the widest chisel and plane blades
- 'bumped' belts result in a slightly curved or dubbed surface
- bumpless belts would take a cutting surface to an excellent base for final honing on a stone BUT.....
- that surface is large and hence does not have the benefit of reducing the stone honing
Back to the shed....
fletty
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