9:1 Mechanical Advantage

Рет қаралды 115,070

8 жыл бұрын

Пікірлер: 41

@johngo6283 5 жыл бұрын

Well, that last great tip about making an entirely second anchor for the second 3 to 1 that is 30 feet away is totally brilliant. Never heard that one before. Great idea.

@royceanderson3389 6 жыл бұрын

Thanks for your Service and your explanation of the 9 to 1 Mechanical Advantage set-up.

@threeriversforge1997 2 жыл бұрын

Great video. As a blacksmith, I love showing these videos around my circle so guys can better understand how easily we can move heavy equipment in the shop. Too many have forgotten that ropes and pulleys even exist. Costly to set up, sure, but worth it in the end if you only need to move a power hammer or lathe.

@DickRoethel 9 ай бұрын

Love practical and simple ratios!

@ianbrown_777 6 жыл бұрын

Good that you explained how to get both travelling pulleys to reset at the same time. Never seen that mentioned before.

@jeffm9227 4 жыл бұрын

Well done.

@motionsick Жыл бұрын

Dope. I just went backpacking and used a 3:1 paracord setup to pull dead branches off trees for firewood. Need to get a 9:1 setup now. 😅😅

@matthewsalvador9783 4 жыл бұрын

Cool gonna move a shed doing this method... I could use the buddy system or my truck, but this method will show me what my limits are. Hehehe

@davidsteinfeld9123 7 жыл бұрын

lots of rope lots of pulleys not so simple but one man can do some enormously heavy pulling or lifting provided the skill sets are correct skill is everything. were proper technic is important to that's a biggy thank you for the knowledge the good stuff is always harder to find

@eakramulmohammad3867 2 жыл бұрын

Well done 9 to 1

@markh16 7 жыл бұрын

nice videos on pulleys! Are the Prusik ropes strong enough for all the load?

@dangerstall 5 жыл бұрын

Yes, because they are only taking a percentage of the total load in a mechanical advantage setup, and a prusik will slip if overloaded. They tend to slip at about 1200 lbs of force for a 3 wrap prusik hitch. Give or take depending on materials and diameters etc...

@JS-zb1vv 9 ай бұрын

Depends on the load and force applied at the anchors gotta remember the force is applied in more than one direction

@jormaruohoneva1588 6 жыл бұрын

OK :)

@cjpirotelli8640 Жыл бұрын

Great Video! I have a question though.. what would the ratio be & what would happen if you made the 2nd redirection attached to a rope grab off the back of the progress capture pulley instead of the rigging plate?

@dangerstall Жыл бұрын

If I understand you correctly, I think it might make it a complex 11:1 . You would have to reset the pulleys so many times though.

@cjpirotelli8640 Жыл бұрын

@@dangerstall Thanks Ryan! Yeah I used it today, not ideal but only had 4 pulleys in gear bag. Luckily I only reset once. Thanks again, really cool channel. Looking forward to more videos

@bullitt5337 6 жыл бұрын

you forgot your progress capture ;p

@bullitt5337 6 жыл бұрын

disregard that I missed the progress capture pulley my bad

@jbs-vu5mc 7 ай бұрын

What kind of pulleys are being used?

@dangerstall 7 ай бұрын

Rock exotica Omni blocks

@amoledor 2 ай бұрын

What pulleys are you using?

@dangerstall 2 ай бұрын

Rock exotica Omni blocks

@southern_merican Жыл бұрын

i only see a 6-1. shouldnt you add both 3-1 together instead of multiply?

@dangerstall Жыл бұрын

When you put a 3:1 onto a 3:1 it multiplies and becomes a 9:1.

@southern_merican Жыл бұрын

@@dangerstall ok. Its been awhile since i messed with anything more than truckers hitch and a few others

@alfredoacevedo4437 4 жыл бұрын

Why not use a block and tackle?

@Dan.Chaytor 4 жыл бұрын

Alfredo Acevedo gravity

@JS-zb1vv 9 ай бұрын

This takes less rope in a resettable system. But this is essentially block and tackle

@TyShep06 Ай бұрын

Progress capture?

@dangerstall Ай бұрын

Is that a question or a criticism? As you can see there is a red prusik next to the first COD pulley. Unfortunately I never got around to attaching it in this video. It would go on the prusik minding side of the first COD pulley.

@alfredoacevedo4437 4 жыл бұрын

We just have to trust that it works? Why not just hang the stuff up?

@Dan.Chaytor 4 жыл бұрын

Alfredo Acevedo gravity

@alfredoacevedo4437 4 жыл бұрын

Why on the floor, on your knees, dude?

@Dan.Chaytor 4 жыл бұрын

Alfredo Acevedo gravity

@garrettoetken8718 2 жыл бұрын

Actually a 5to1

@dangerstall 2 жыл бұрын

Please explain to me how this is a 5:1? Also explain your background and what makes you an expert in mechanical advantage pulley systems for rope rescue. Thank you

@troyhornback1719 Жыл бұрын

Steve racer says it’s a 4 + Garrett says it’s a 5 = 9:1

@banryu79 Жыл бұрын

Wrong, it's a 3:1 on top a 3:1, so it's a compound 9:1 system