It works because of the 4 point lift system 2 on each side of the load as compared to only 2 lift points 1 fore and 1 aft used by lower cost systems.
Self leveling 4 point pulley lift system diy.
Oct 10 2018 explore bob defoor s board pulley systems followed by 165 people on pinterest.
Paracord 10 used for hanging the table the ammount you will need will depend on the size of the table you make and the height at which you want the table to hang.
Below i ll discuss another style which is a platform style supported by 4 points.
Use low friction pulleys and add a centered hanging weight to the center to lower the overall center of gravity that way it will lift level.
Setting up a 4 point pulley lift system optional setup everything so far has created the basics for a simple pulley system like the one seen in the video.
See more ideas about pulley block and tackle mechanical advantage.
Our garage ceiling is 10 ft high.
Check out step 10 for a formula that will help you determine how much paracord you will need pine board 8 wide x 10 long x 1 thick 20 these are cut and combined to.
You should use two screws at each end of the shorter pieces for a total of 20 screws.
Using 3 inch wood screws attach the 8 foot long pieces to the ends of the shorter support pieces.
In this case it was removing the roof from a tractor similar can be done with 8 pulleys and 1 draw rope giving 16x lift advantage on the rope.
Same image i used before for a similar question.
Cut two 2 by 4 s to 8 feet long and five 2 by 4 s to 3 feet 9 inches long.