It's just a gut feeling but I'd trust a feedback based backlash elimination mechanism more than rope based, especially in the long run and/or with a large deployed base.
CARA – High precision robot dog using rope
121–130 of 188 posts
Re: CARA – High precision robot dog using rope
#122Similar mechanism might be good for astronomical telescope mounts. Gears are often a problem and nobody seems to have solved it.
Re: CARA – High precision robot dog using rope
#123Earlier quoted context omitted.
He's easily one of my favorite content creators. Ofc, there are much better engineers, domain experts or more entertaining people on youtube, but he strikes a very enjoyable balance. I wanted to start writing a list of other tech related, pop-sci and industrial-design Youtubers I kinda enjoy, but noticed just how many channels I'm subscribed to... If there's any interest, I'll drop it, just tell me. Meanwhile I have…
I'm interested as well! I never can get enough of these builders and engineers.
Hey, I'll reply later to noman-land's comment below, but progress is kinda slow. It takes more time than expected to categorize this many channels and I stopped yesterday after having sorted a bit over 500 and have barely reached the letter "H" (most not tech related ofc, so no worries about getting a monstrous list).
I got a bit more time today, so maybe today evening (German time), elsewise I'll have to skip Friday, so likely Saturday afternoon.
Re: CARA – High precision robot dog using rope
#124What a horrible video is this, with the robotic translated AI voiceover? Update: Ah, weird, if I watch the non-embedded one on youtube it is the original in English with normal sound. It's the one embedded on his web site which has AI translation to German.
Re: CARA – High precision robot dog using rope
#125Earlier quoted context omitted.
Surely you mean driven by closed-loop servos with encoders, don't you? Jacques Mattheij wrote a long post about how he ended up having to replace all the CNC machines he sold that used stepper motors because he didn't know any better at the time, and brushless motors are a lot faster and more powerful as well as not losing steps.
I guess "mid price" isn't the most helpful term when machines vary from $100 to $100,000 huh? I think the X-Carve 3-axis wood carver uses stepper motors with belts of all things. The Shapeoko Pro is leadscrews and stepper motors. Wazers, I believe, are belt-and-servo driven. And a lot of 'CNC conversion kits' you can order online use stepper motors. Plus of course laser cutters have really low torque requirements, so…
Actually, it was the Shapeoko 1 which introduces the idea of belts (MXL), then switching to Gates GT2 belts with the SO2 (ob. discl., I got a free machine for doing the instructions, see Github). Since it was opensource, the X-Carve was forked from the SO2, though the X-Carve Pro was a completely new design.
Note that belts were continued through the Shapeoko 3 (I got a machine as a "thank you"), though the Z-axis got a leadscrew in the Z-Plus upgrade, then the Pro (since, I got a job with the company and got an XXL as part of my employment), then the 4 (the original Pro is referred to as a 4 Pro sometimes), and it is only with the 5 pro that ball screws were switched to for all axes (and I now have a 5 Pro).
For an example of what a belt-drive CNC can do see:
https://community.carbide3d.com/t/hardcore-aluminum-milling-...
Re: CARA – High precision robot dog using rope
#126Another cool project from this person's blog: "Wrist Mounted CD Launcher" -> https://www.aaedmusa.com/projects/wrist-mounted-cd-launcher
It definitely gives off Elysium (film) vibes.
Re: CARA – High precision robot dog using rope
#127It's just a gut feeling but I'd trust a feedback based backlash elimination mechanism more than rope based, especially in the long run and/or with a large deployed base.
But, why?
Re: CARA – High precision robot dog using rope
#128Earlier quoted context omitted.
I get absurdly niche videos with 33 views in my feed about robotics but most of them have views in the low thousands. The algorithm isn't holding you back.
i noticed recently YT has been suggesting micro-small channel(<1000 subscriber) to me, not sure if this is good thing.
The real question: Are the recent recommendations better than previously? Example: If the recommendation engine (presumably driven by some kind of AI/LLM at this point) better understands the content of videos, it can make better recommendations. If anything, it seems logical that smaller channels would begin to appear on your YouTube feed, as long as the content is highly quality and matches your interests.
Re: CARA – High precision robot dog using rope
#129It'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
I agree 1000%, which is why I find the whole “the internet sucks now” movement really disheartening. There are huge upsides to a network this large.
Re: CARA – High precision robot dog using rope
#130Amazing work, beautifully presented.
Geordi LaForge reminds me of Aaed.