/robowaifu/ - DIY Robot Wives

Advancing robotics to a point where anime catgrill meidos in tiny miniskirts are a reality.

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But she was more than just a tool - she became his friend.


Robotics Hardware General Robowaifu Technician 09/10/2019 (Tue) 06:21:04 No.81
Servos, Actuators, Structural, Mechatronics, etc.

You can't build a robot without robot parts tbh. Please post good resources for obtaining or constructing them.

www.servocity.com/
https://archive.is/Vdd1P
>>81 Small pneumatic or hydraulic actuators are becoming the biggest issue I can find. The only small ones I seem to find have very limited pressure.
>>4275 Do you think something like a screw-drive & rack-drive linear actuator could serve in place of a hydraulic one Anon? There are several linear actuators in different sizes readily available. They are electrically-driven ofc. Some can produce quite a bit of force.
Apologies if this video has already been posted, but I found it fascinating and liberating to get a glimpse of how many experts and just how much testing it takes to get a humanoid robot working properly. Boston Dynamics employs around 300 people. In this video just over a dozen are shown. That should give an idea of just how much work goes into this. https://youtu.be/EezdinoG4mk
>>12473 Neat, thanks SophieDev. I feel reasonably confident saying I don't believe this video has been posted here before. Very interesting. I think it's absolutely amazing that we here are going to make better humanoid robots, on a shoe-string budget, from a small group of robowaifu-pioneering Anons. Ours will eventually be with men all over the world, while theirs will stay limited to govt. institutions only. Their multi-billion dollar conglomerate loaded with highly-paid, highly-educated engineers and designers (and absolutely drenched in the Globohomo Big Tech/Gov) vs. our merry little band of adventurers. Real life Robin Hood-tier stuff -- it will be glorious! :^) ONWARD ANONS!
>>81 Really cool cheap yet powerful stepper servo desigh. https://youtu.be/a1sZSIDxpfg
>>12473 >>12483 That does looks cool Anon. I'll download the video and have a look at it. Are there any other links to go along with it do you know (hackaday, instructables, etc)?
>>12488 --write-description option in youtube-dl will write the text coming with the video. Otherwise look at the page or in the app. I aw the video before, it's fascinating, but it might not be so great for a compliant humanoid robot, because these sun gears with high reduction ratio are not backdriveable. Otherwise it would fit better in the thread for actuators. This thread here seem to only exist for other robots than waifus. >>12473 Thanks, but this should be moved to >>374
Open file (4.75 MB 4624x3472 IMG_20220903_105556.jpg)
>>17213 Posting in this thread now. I am attempting to make a silicone sensor while avoiding patent infringement. It appears that every possible patent is either expired, abandoned, or not applicable, so I'll proceed. So far I have created this giant mess. >pic related
I have a couple questions. 1. Would it be feasible to simulate muscles by twisting chords using electric motors to shorten them, or simply reeling up cable/chord? 2. If so, would pairs of these "muscles" working opposite each other, like biceps and triceps, be able to regenerate electricity as one pulled against the other to unwind/unreel against the opposing motor? Obviously there would still be energy loss but could you reduce the loss by using motors as regenerators? I'm asking because I had a weird dream after learning about Iceland's giant wooden puppet where there was a wooden doll that moved using twisting chords as muscles. It obviously looked feasible in my dream but my dreams are often retarded.
>>17429 I like your sketch Anon.
>1. Would it be feasible to simulate muscles by twisting chords using electric motors to shorten them, or simply reeling up cable/chord? Sounds doable. I've been trying my hand on a similar design. >2. If so, would pairs of these "muscles" working opposite each other, like biceps and triceps, be able to regenerate electricity as one pulled against the other to unwind/unreel against the opposing motor? Obviously there would still be energy loss but could you reduce the loss by using motors as regenerators? Wouldn't work. Any energy the relaxed engine would generate would be extra energy the engine under current would consume. The reason stuff like regenerative breaking works for EVs is because you're taking energy from the wheels while you don't want the wheels to spin.
Open file (38.98 KB 741x599 Jupiter1.jpg)
>>17449 Thanks, maybe I'll learn to draw on the computer someday (I made this jupiter with a drawing pad a while back but, pencil to paper just feels more natural) Also helps to get the idea across quickly I used to be pretty good with Aldus Freehand back in the day but that was bought out by Adobe and I just hate the Illustrator Interface

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