Pocket-Sized Crane: This Tiny Device Can Lift Massive Loads!

me trying to lift my responsibilities like this

Shopify link?

*block and tackle*

…and then the rope…

怎么没人早点想到

Archimedes invented it

開團！！

МНЕ НАДА

Doesn’t work as you would hope. The successive tension ratio per 180° is ~2.57 (u=0.3 for nylon on steel friction). For a 5-line reeving the free-end pull needed to raise 200 lb against sliding friction is ~316 lb (actual MA <1). A single 120° pass over wood (same μ) needs ~375 lb. The multi-wrap fixed-pin setup is slightly better but still far worse than true bearings, which would keep force near 40 lb.

Wow, amazing! Really cane lift a bike?

Me having seen the same thing in Dr. Stone

Me parece una herramienta muy interesante y util pero no nos sorprendamos por el milenario polipasto.

A lot of friction. Needs bearings or you aren’t lifting much more than just pulling a rope over a branch. You have a capstan with 3 full wraps of paracord on steel. @grok how much friction is produced for a 200 lb load. If bearings were used how much friction could be reduced?

omg ... retard discovers pulleys

Thats what she said

use 2 and make it 25x - 36x times easier

The rope is too thin.

欲しい！

@grok bunu nerde buluruz link ver

бля полиспаст охуенный

Your MOM takes massive loads

This would be fine for fairly light things. But anything heavy would be probably cause it to explode.

Dope

two prongs lifting that much is just asking for a stripped bolt and a bruised ego

Pocket Pulley! Sounds dirty

@grok tell me why , real physics tells us its a scam

Pulling line over pins instead of rollers is self defeating. Friction alone kills it. Its a scam. Get yourself a pair of sailing blocks. If you have handled line all your life it is obvious.

A link to buy it ?

Super cool design and utility on a timeless engineering classic. I'd keep one in my pack with my survival essentials.

AI trained on a youtuber