Rope Handle for paracord (customizable)

thingiverse

DISCLAIMER / WARNING This is not a climbing tool! Don't use in any situation where loss of grip would cause harm to people or property.DISCLAIMER / WARNING This design is something that allows to quickly grip a thin rope and pull it tightly without hurting your hands. It features a opposing rows of one-way gripping teeth so that the harder you pull, the harder it bites into and grips the rope. To release the rope, the handle can be tilted forward while under tension, and the rope will slide out of the teeth. Alternatively you can sort of "peel" the rope back by starting at the top of the handle and pulling down to the base. Its important to pay attention to the angle of the handle during use, so as not to inadvertently let the rope go. I am considering adding some kind of guard at the top of the handle that would keep the rope from slipping out, but haven't decided on a solution that I like yet. As it is, you don't need access to any free end of the rope for use. Adding something like a loop on the top would mean that you restrict that ability, so I'm still thinking about it. I designed this to work with some 750lb-test paracord that I bought online. I think the more common size of paracord is 550lb test, which might be slightly smaller diameter, though I expect it would also work fine with the same part. The original idea behind this was for use with a pulley block and tackle setup, for hoisting heavy objects etc. The part is completely customizable in OpenSCAD for different rope sizes, different hand sizes, etc. To customize the part for another rope size, just measure the un-squished rope diameter "ropeD", and the diameter while squished as much as you can, with calipers "ropeFlatD".