The Official Work Pictures Thread

[cory]

Scott- Great looking tree you freed up there!

Gary- Solo You must have muscles in your shite after that one.

 

[pantheraba]

Worst part was unraveling the mayhem of the bombing and dragging the brush...gravity did the high stuff.

A friend with a big bobcat and grapple is doing the big wood.

 

[PCTREE]

Gary, love the triangulated pull line. Another great trick for the bag

 

[pantheraba]

Thanks...it let me have the block where I needed it.

 

[PCTREE]

how does the effective force on the tree change as opposed to a direct pull, if obviously you had the room to pull straight. Cant quite wrap my head around that at this time of night.

 

[cory]

PC, don't be shy with the crane pics...

 

[BOTS]

Good work going on there Gary, I like the rigging set up with pulley, its nice when you cant pull straight, its very effective

 

[CurSedVoyce]

Nice work Gary and Scott!
Scott, you guys must have been movin and groovin to get that done in short time.

 

[Mick!]

how does the effective force on the tree change as opposed to a direct pull, if obviously you had the room to pull straight. Cant quite wrap my head around that at this time of night.

I think he's getting double power if that's what you're asking.

 

[sotc]

No, same as a direct pull, no advantage. The block would need to be on the pull Tree to gain advantage

 

[Mick!]

Quite right.

I believed the rope he was pulling was connected to the anchor tree rather than the tree to be felled.

On closer inspection it isn't.

 

[PCTREE]

I'm just not sure about it.....

 

[Limbrat]

Yep, just a redirect.

 

[BOTS]

Gary would have to be driving at the tree thats being felled to be 2 to 1

 

[PCTREE]

I'm not saying a 2 to 1 just not sure it's equal pull. If the pulley was on a fixed point yes but it's not, that pulley is able to move within the constraints of the rope. I might be totally off point on this but all I'm not sold yet.

Let's ask Graham , he would know

 

[SeanKroll]

It's a redirect with no MA.

the sling will feel increase force (greater than tree or truck) IF the angle is less than 120* between the legs of the pull rope.

 

[treebilly]

The pulley in that pic can move slightly but for all intensive purposes it's a redirect. Any gain is minimal.
Very correct Sean. When I was setting rigging for the crane in construction we would make sure no slings were over a 60 degree loaded angle. Any more than that and you lose strength. Makes sense since a triangle equals 180 and an equilateral is three 60 degree angles.

 

[treebilly]

Ok now that I've dealt with the upset child who never wants to sleep, it doesn't quite make sense. Anything less than a 90 degree rope angle would add more force. Depending on what you want to call the rope angle. I'm calling the rope angle the apex the rope angle. Should be greater than 90

 

[sotc]

Gary would have to be driving at the tree thats being felled to be 2 to 1

Not that either, that would double the load on the redirect Tree, not the fall Tree. If the block were tied on the fall Tree and the truck rope were tied through the block to the leave Tree then there would be a mechanical advantage, or actually in that case maybe a disadvantage because the angle is so wide.... now my brains mushed

 

[sotc]

Hauled Friday's leftover wood this am, got Justin some boom time.

Then picked a tree that had been topped and left standing years ago. It fell into an old single wide recently, very bad Tree to climb.

 

[CurSedVoyce]

Damn WIllie... that boom is awesome. What a labor saver!

 

[Jomo]

Gettin all mechanized n stuff!

Nice work pics Willie.

Jomo

 

[sawman]

Know that was cool Willie!!

 

[Jed]

I want one of those! Fix it all up n shit!

Gary: That job rocked. Thanks for the picks. Love the look of that oak. I want to eat it. Maybe just burn it.

 

[Bodean]

On a pogo stick, Willie!