Chain grinding angles?

[Grandedog]

     Howdy,
   By tilting the vise you're orienting the grinding profile more with the inside corner / outside corner line of the tooth. When grinding with 0 tilt, the geometry of the profile is more in line with the side plate of the tooth. The trade off remains the same, the sharper you make it the easier it is to dull. If you're in clean green softwood, the payoff is noticeable. With dirty dry hardwood not so much. When your talking about chipper, semi-chisel, or micro-chisel and tilting the head. There's not much advantage because you're only going from a spoon shape profile to a slightly more pointed spoon shape profile. Whether it's a square, or rounded tooth, it's efficiency is dependent
on the corner formed between the top plate, and side plate. The reason rounded tooth stays sharper longer is because of the length of the edge between the top and side plate. So realistically with the rounded tooth you have much more edge to dull before it's efficiency diminishes. With a square tooth, once you dull the point, efficiency diminishes pretty fast. 
Regards
Gregg

[terrifictimbersllc]

     Howdy,
   By tilting the head you're orienting the grinding profile more with the inside corner / outside corner line of the tooth. When grinding with 0 tilt, the geometry of the profile is more in line with the side plate of the tooth. The trade off remains the same, the sharper you make it the easier it is to dull. If you're in clean green softwood, the payoff is noticeable. With dirty dry hardwood not so much. When your talking about chipper, semi-chisel, or micro-chisel and tilting the head. There's not much advantage because you're only going from a spoon shape profile to a slightly more pointed spoon shape profile. Whether it's a square, or rounded tooth, it's efficiency is dependent
on the corner formed between the top plate, and side plate. The reason rounded tooth stays sharper longer is because of the length of the edge between the top and side plate. So realistically with the rounded tooth you have much more edge to dull before it's efficiency diminishes. With a square tooth, once you dull the point, efficiency diminishes pretty fast. 
Regards
Gregg

Did you mean "by tilting the chain" ?  That's what I thought the discussion about the 10 degree adjustment was referring to.

[Grandedog]

     Howdy,
   Yes, I meant to say by tilting the vise.
Regards
Gregg

[HolmenTree]

Also called "offset grinding".

[OH logger]

does anyone run diamond wheels in their grinders or just the regular ones??

[terrifictimbersllc]

I use the ABN "cyclone" wheel from Bailey's for several years now to grind all my 404 and 375 chain saw and slabber chains.