String?
How about a chalk line? Hook in one side of the face and wrap around. Snap line in a couple places and then wrap it back up.
Keep cuttin that string untill it gets wrapped around your drive sprocket and you will probably figure out a better way. In the tree, after making the face cut (if I make it on the side of the tree that I am on and I want to be on the back-cut side when making the back-cut) I just reach around the right side with the saw (both hands on the saw) and line up/level up the bar with the face and rev saw to make a small mark on exact opposite side with top of the bar. Keep in mind that cutting with the top of the bar will force saw away from the tree so keep both hands on saw and make sure nose is not close as it will try and spin the tip right around into your face. Just a small rev and touch bark to make a mark is all. Then you go ahead and rig the piece (bull rope across face and up through half hitch into running bowline) and when you set up on back side, you have a reference point to start back cut. For a quick check, I will reach around both sides and place middle fingers in apex of face cut just to verify direction and levelness?
Probably to much info? I might use the chalk line idea on a really big tree on the ground if very critical felling cut, but never in the tree. That string thing is gonna bite ya eventually.
How about a chalk line? Hook in one side of the face and wrap around. Snap line in a couple places and then wrap it back up.
Keep cuttin that string untill it gets wrapped around your drive sprocket and you will probably figure out a better way. In the tree, after making the face cut (if I make it on the side of the tree that I am on and I want to be on the back-cut side when making the back-cut) I just reach around the right side with the saw (both hands on the saw) and line up/level up the bar with the face and rev saw to make a small mark on exact opposite side with top of the bar. Keep in mind that cutting with the top of the bar will force saw away from the tree so keep both hands on saw and make sure nose is not close as it will try and spin the tip right around into your face. Just a small rev and touch bark to make a mark is all. Then you go ahead and rig the piece (bull rope across face and up through half hitch into running bowline) and when you set up on back side, you have a reference point to start back cut. For a quick check, I will reach around both sides and place middle fingers in apex of face cut just to verify direction and levelness?
Probably to much info? I might use the chalk line idea on a really big tree on the ground if very critical felling cut, but never in the tree. That string thing is gonna bite ya eventually.