for you micro pulley guys....

[kf_tree]

not sure if will work as a knot tender, but its cheap enough to buy a few to toy with. http://www.backcountrygear.com/catalog/climbdetail.cfm/PET320

 

[Stumper]

Looks nifty-thanks for the link.

 

[treeclimber165]

In order to work as a friction hitch tender, you need side plates to actually contact the hitch. With an open pulley you could do light lifting but not hitch tending.
Here's the one for a hitch tender. A few dollars less than the 7000lb rated micropulley from Sherrill. http://www.backcountrygear.com/catalog/climbdetail.cfm?PRODUCTS__ProductID=PET300

 

[John Paul Sanborn]

I dont like the sharper corners on the Oscillante. I think rope wear would increase.

 

[rbtree]

Also, I think it is too small for our 1/2 inch lines.

 

[kf_tree]

rb

it says 13mm max. 13mm is a tad bigger than 1/2 in. just think of metric sockets.

 

[John Paul Sanborn]

.5mm off

I did that with those blue petzle rigging pullies. Tryied to use them on 1/2 inch line for a speedline like you've shown. Turns out that their being 13mm max rope they had too much friction and endedup we just had a fancy DWT.

 

[kf_tree]

ok ok keep slamming me for posting about a new gizmo i found. thats the last time i post a new piece of gear i see.

 

[Ghivelder]

The picture below was taken on the ETCC in Oslo. Someone was indeed using a "Ultralegere" type of pulley as a slack tender for the longe. I've tried it, but the the fourth time the rope went out of the pulley, I've given up. I think the Ultralegere is very nice when you're pulling up a chainsaw or something like that.
As for normal micro-pulleys, I did use the Oscillante for quite a long time, but it's true it has too much friction using a 1/2' line. I've now changed to Petzl's "Fixe" with fixed plates. It is a bit heavier, but it has a space in which the rope goes through virtually frictionless and the plates advences the hitch perfectly.
Try it...

Sergio

www.tree-climbing.com