How do we make such robots intelligent? Like you only tell it to learn to jump the rope and then it goes through trial and error(s) to figure out a way to do it, and if it can’t and needs a physical upgrade then it tells you that? (Like a certain gear ratio etc)
CARA – High precision robot dog using rope
91–100 of 188 posts
Re: CARA – High precision robot dog using rope
#92Earlier quoted context omitted.
Why dread?
Land mines have been killing people by surprise for decades. Flying drones, some of them dropping land mines and others lying in wait for incoming convoys, produced 70% of the casualties on both sides in the Ukrainian invasion last year, and a few weeks ago the Ukrainians shipped some drones to near a Russian airport several thousand kilometers from Ukraine to blow up a bunch of airplanes. This betokens a future of b…
I'm more optimistic. I think filling battlefields with autonomous weapons will make humans obsolete there and reduce war causalities. Basically any attack on humans is going to be a war crime and terrorism akin to attacks on civilians russia is doing right now
Re: CARA – High precision robot dog using rope
#93It might be fun to optimize the shape of the rolling contact surface of the capstan drive away from cycloid to make it even better suited for specific application, like a robot dog leg that smoothly runs for miles.
Re: CARA – High precision robot dog using rope
#94I recently found these videos. Amazing guy, amazing skills, great humor.
Re: CARA – High precision robot dog using rope
#95Earlier quoted context omitted.
It probably doesn't matter so much whether it's 7.913 or 8.186, but it would be important to know the exact value for kinematics. One way to do that is to build an object very accurately, the other is to build inaccurately and then measure the result after the fact. It's also interesting because competing actuators with strain-wave, cycloidal, or planetary gearboxes will state exactly what the ratio is. The actual ge…
Yeah, I think one of the nice things about making it a "clean" number (either an integer or a rational with a small integer denominator) is that you can easily validate it without needing high-precision measurement equipment: put a mark on both gears (maybe even embedded in the 3D print), line up the marks, rotate the large gear 1 full rotation, and count the number of rotations the smaller gear makes. Check to see i…
His capstan reduction can't go all the way around even once.
Re: CARA – High precision robot dog using rope
#96Earlier quoted context omitted.
Do fun projects of your choosing vs the grind of corporate life. The former has a rather large non-pecuniary component of total compensation.
Exactly; especially in terms of stress—which is a major problem with my chronic illness, and both the main reason I'm happy to be away from a W-2, but also the thing that makes me most nervous as I'm dependent on marketplace healthcare (which is quite expensive for much worse benefits), and it's harder to get things like life/disability insurance as an independent.
Being a top YouTube producer is not without stress : Reacting to the change in number of followers, responding to comment that can be unpolite, managing sponsors...
Re: CARA – High precision robot dog using rope
#97Very cool robot dog and interesting video!
Can the dog climb stairs? Isn't capstan drive temperature sensitive, e.g. the ropes will be shorter in cold and longer in warm wheather?
Re: CARA – High precision robot dog using rope
#98Some resources related capstan drive:
https://www.osti.gov/servlets/purl/1340266
https://fab.cba.mit.edu/classes/865.21/topics/mechanical_des...
Re: CARA – High precision robot dog using rope
#99This is an absolute masterclass in DIY robotics. With a proper battery and a tougher foot material, this thing could really stomp.
Re: CARA – High precision robot dog using rope
#100It's amazing what he's done in terms of the robotics, and the presentation of it to the viewer. I'm amazed at the quality of cinematography on the internet these days. The implications of the tools we now make available for use in our own personal workshops are still being discovered, and will be for some time.
Feels like the golden age of DIY engineering