Chain Saw Sharpening

[Kneejerk Bombas]

It sounds like you have a sweet setup.
The few grinders I have tried had abrasive wheels like an angle grinder, and they would change in size and shape as you used them. The wheels you describe sound awsome.
Now that I think about it, it was the grinder that left a better surface, in the discussions.
I do want to get into a grinder soon, I just don't know what to look for.
It does make sense to take a chain to a grinder 2 or 3 times in it's life to even things out or make them square ground again. Square filing in the field is tough, I do it for light touch up, but if the chain is really dull, grinding is better, for me anyway.
Did you ever put a square grind on a round tooth?

 

[Kneejerk Bombas]

I sharpened a round ground chain with a six sided file for square ground cutters, and it cut really good. I did do any timed cuts or anything, I just remember thinking it was faster.

 

[Kneejerk Bombas]

No Brian, it was regular old semi chisel chain, on my power pruner as a matter of fact.
You should get a loop or two of square ground chain to check it out. Then when it dulls, try one of those six sided files, and when you fail at that (hehe, I assume you'll fail), just round file it.
Square filing isn't that hard, just put the file in, line it up and push.

 

[Stumper]

The truth will out! Mike has a power pruner.