special order bushing for rope wrench

[surveyor]

I had a machinist make me a dozen bushings for the Singing Tree Rope Wrench, that will work with the 5/16" quick release pin. As of this date I have 8 left. My cost was $20 each sheave bushing, which is what I am willing to sell them for plus shipping, upon payment. First come first served, just send a message if you are wanting one reserved. Here is a picture of my RW with sheave bushing installed.

 

[High Scale]

Nice but I think I would lose it pretty quick with the release pin.

[Dan Curtis]

Does your wrench have an extra bolt in it? Seems in the photo like there's an extra one half way along it

[surveyor]

Yes, I took the barrel pin replaced by the sheave bushing and made a second tether point out of it.

[Old Mill Tree Care]

Yes, I took the barrel pin replaced by the sheave bushing and made a second tether point out of it.

 

Why?

 

Also, what's the advantage of the sheave bushing?

[surveyor]

I like to experiment. and it seemed a waste to not use it : ) Actually I already had holes drilled there from when I was experimenting with a midline RW.

 

The sheave is even friendlier to the rope, and helps it maintain its roundness

[Dan Curtis]

They look interesting, do they work?

[surveyor]

They work fine for descent, notice the roller is below on these "Dogbones", The hitch tends to slide around the round end and push the swivel pin aside on ascent, so I have another model in the works.

[Dan Curtis]

Interesting, don't want to derail your thread, but keep us posted on the new model. They look more compact than the wrench, so perhaps less effort involved in their application?

[High Scale]

Interesting times!