John_Mc
Elite Member
- Joined
- Aug 11, 2001
- Messages
- 4,563
- Location
- Monkton, Vermont
- Tractor
- NH TC33D Modified with belly pan, limb risers & FOPS. Honda Pioneer 520 & antique Coot UTV
That's interesting. I've only used a Timberline sharpener once, and it did an excellent job. It was just too time consuming for me.I used the Timberline for a while, but found I couldn't get the grinding burr to consistently rest on the bottom of the chain. After a few sharpens, the undercut of the cutting tooth disappeared (Angle X), and came closer to a right angle over time.
View attachment 723976
So I've gone back to using a file with the original file holder, and flat file with the depth gauge, which came with the Stihl 026 all those years ago.
That said, the Timberline is a clever bit of design for maintaining the teeth at the same length, so it's still in the tool kit.
BTW, it is not necessary to maintain the teeth at the same length if yu use a progressive depth gauge tool to set the gauge height, since it customizes the depth gauge height to it's individual associated tooth. The Stihl and the Oregon depth gauge tools as well as the Stihl 2-in-1 sharpening tool (which is actually a rebadged Pferd Chainsharp CSX) also do not use a progressive depth gauge method, so need to keep all the teeth the same length for best performance.