Let’s see some stumps

[Skeans1]

A gap face hinge works pretty good for holding on to the stump.
You basically plunge cut the hinge apex and then angle you top and bottom face cuts into the plunge cut. No compression in the face.

A block will do the same thing.

 

[davidwyby]

Long hinge gap face, but spiral grain running back on the tension side made it break off early and running fwd on the compression side made it hold on longer. Pulled it off the gun like a sizwheel. Luckily the fence is tough

 

[davidwyby]

 

[davidwyby]

I wonder if the long hinge exacerbated it

 

[davidwyby]

I’d like to get some thoughts on spiral grain.

@Catbuster
@chiselbit
@Normzilla
@jacob j.
@Loony661

Who am I forgetting?

I spose I should post in the forestry and logging thread.

 

[Catbuster]

The maybe 3 spiral grain trees I’ve cut were snags by the time I got to them. It’s an obvious defect that most people don’t want to cut for the price they get at the mill. It seems to be more prevalent in species like Sugar Pine than the species I have that are local to where I am now.

Every one I’ve seen hit the ground, but one, has come apart when it hit the ground.

 

[Loony661]

I’d like to get some thoughts on spiral grain.

@Catbuster
@chiselbit
@Normzilla
@jacob j.
@Loony661

Who am I forgetting?

I spose I should post in the forestry and logging thread.

Some of the White Oaks I’ve cut have had spiral grain - I haven’t noticed any difference the way that I fell trees.

 

[BonScott46]

Lots of wind shake in this one. 28 inch bar on the 036.

 

[Normzilla]

I’d like to get some thoughts on spiral grain.

@Catbuster
@chiselbit
@Normzilla
@jacob j.
@Loony661

Who am I forgetting?

I spose I should post in the forestry and logging thread.

Amigo

 

[Junk Meister]

Amigo

I’d like to get some thoughts on spiral grain.

@Catbuster
@chiselbit
@Normzilla
@jacob j.
@Loony661

Who am I forgetting?

I spose I should post in the forestry and logging thread.

Left or Right hand twist?
A whole thread could be dedicated to grains and what creates what. Like Compression grain that is under a limb and off of the trunk, the grain at the root flares, Grain around a broke then overgrown branch. Riff- quarter - face- edge - grain density - grain run out.

 

[davidwyby]

In my example you can see that forward running grain held on longer and rearward running grain broke early.

But after reviewing I don’t know how much was grain and how much was poorly executed overly complicated cutting trying to get wood to bend.

You can see where I nicked the hinge in the circled areas. Yellow side high on the front blue one low on the back. Those nicks contributed to where the hinge broke, and a tilted hinge pulls to the high side. How much was that and how much was twist I don’t know, but I have not had a problem with twist before.

 

[davidwyby]

I have read experienced fallers say that a gap face should be broken out, not cut out. That way the fibers that are severed come out with the gob and the ones that are not stay.