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He designed RopeBot YouTube video embedded below for one job only — single mission, single use. A couple of years back, [tterev3] had put up some thick ropes for a low ropes course in his backyard. Over time, the trees grew up, and the ropes became embedded in the tree trunks. Instead of risking his own life and limbs to try cutting them down, he designed RopeBot to do the job for him. A geared motor driving a large cogged pulley helped by two smaller, idler wheels helps the bot to scurry up and down the rope.
A second geared motor drives a cam reciprocating mechanism, similar to industrial metal cutting saws. A common utility knife is the business end of the bot, helping slice through the rope.
A radio receiver and controller is the brains of the bot which drives the two motors through a motor driver board. The remote controller, assembled on a piece of foam, has three switches for Up, Down and Cut. Everything is held together on the 3D printed frame and tied down with a generous use of zip ties, with rubber bands providing spring tension where needed. When the rope has been cut, the RopeBot comes down for a smashing end.
It might not look fancy, but it gets the job done. Obviously, he spent a fair amount of time and effort in designing RopeBot. Once the job is done, most of the electronics and hardware can be recovered and used again while the 3D printed parts could be recycled, making this a really cost-effective way of handling the problem.
The holds themselves were custom made; the group started by making silicone molds of varying shapes and sizes, then added the electronics and poured in polyurethane resin to create the casting. The boards for these LEDs are equipped with a central hole that pairs up with a peg in the silicone mold. The finished holds bolt onto the wall with all their wires neatly sticking out of the back to be hooked up to a central controller.
Stop by the Github for schematics and PCB layouts, and stick around for a video of the wall after the break. Instructables user [PenfoldPlant] is a big fan of indoor rock climbing, and while watching others make difficult climbs, he has often wondered if he could follow the same route up the wall.
The path is recorded and then can be replayed, courtesy of the onboard Arduino. It really is a neat system, and while it works pretty well already, we think there is still room for enhancement. In that case however, we imagine the Arduino would need to be swapped out for something a touch more powerful. Handbot is one piece of a larger project called Swarmanoid.
The aim of the swarmanoid is to replicate the functions we usually desire out of a humanoid bot with a whole swarm of specialized bots. That seems like a silly goal to us, considering the only requirement for a humanoid bot is that it be shaped like a human.
That aside, we like their stuff. The handbot specifically is designed to retrieve books from bookshelves. It has specialized arms for climbing and grabbing the books with a batman-esque retractable rope launcher mounted on top for added speed and strength.
The gait of the handbot really reminds us of how chameleons walk. By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies.
Stick around for a quick video of the tracking system in action.