/robowaifu/ - DIY Robot Wives

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R&D General NoidoDev ##eCt7e4 07/21/2023 (Fri) 15:25:47 No.24152
This is a thread to discuss smaller or general waifu building problems, solutions, proposals and questions that don't warrant a thread or touch on more than one topic. In a way this is a technical meta, minus news. Keep it technical. A lot of topics in the old thread here >>83 have a thread on their own by now. The main topics in the old thread with the link to the related dedicated threads are listed here - it was mostly about actuation at the beginning: Topics in the old OP: - liquid battery and cooling in one (flow batteries) >>5080 - artificial muscles (related to actuators >>12810) - high level and low level intelligence emulation (AI) (related to AI >>77 >>22 >>250 >>27 >>201) - wear and maintenance, including repairs - sanitation >>1627 (related to actuators >>12810) > cheap hydraulic and pneumatic muscles > woven sleeves out of strong nylon fishing line > exhaust excess heat by breathing and panting (related to thermal management >>234) >>1635 (related to energy systems >>5080) > sitting in her 'recharging chair' > swapable battery packs, air tanks > sleeve and other 'fabric' weaving TOOLS >>1691 -TOOLS- > automatic winding >>1698 -TOOLS- > looming mechanism >>1711 (related to actuators >>12810) > belt to transfer the mechanical energy to joints >>1715 (related to actuators >>12810) > not uncommon to use wires >>1716 (related to actuators >>12810) > double-end style towing sock cables (for hydraulics/pneumatics) >>1716 (related to actuators >>12810) > synchromesh drive systems >>1757 (related to actuators >>12810) > wires that themselves contract when heated >>1758 (related to actuators >>12810) > air muscles ... using an origami folding approach >>1779 (related to skin >>242) > self healing stretchable electronic skin >>1792 (related to actuators >>12810) > cable driven design >>1793 > klann linkages >>1799 > Jansen's Linkage >>1879 > software for waifu mechanical development >>1993 > hands (related to hand development >>4577) >>2032 >>2048 > decentralized computing of motion >>2377 (related to AI >>77 >>22 >>250 >>27 >>201) > AI and memory related, fuzzy NAND >>2670 --LIQUID-- > algae living in the internal water tanks >>2754 > copper for internal tanks >>2756 (related to vagoo / punani >>419) > slime onahole >>3182 (related to AI >>77 >>22 >>250 >>27 >>201) > combines MuZero, the Intrinsic Curiosity Module, Go-Explore, Hindsight Experience Replay and Divide-and-Conquer MCTS > pretty tough AI questions to solve >>3223 (related to AI >>77 >>22 >>250 >>27 >>201) > generally AI related thread >>3240 (related to AI >>77 >>22 >>250 >>27 >>201) > Flowtron ... autoregressive flow-based generative network for textto-speech synthesis >>3249 (related to AI >>77 >>22 >>250 >>27 >>201) > Tacotron, transformers >>3930 > intellectual humility >>4827 > most common methods to glue (3d printed) plastics together >>4831 > micro RC car, assembly of small stuff >>4861 > 90 facts about the human body >>5038 > DIY and inventors thread in the dollforum >>5448 > 3D printers to produce tensegrity structures >>5457 > silicone ball jointed doll ... held together by wire or string. >>5457 (related to skin >>242) > silicone skin covering the body with two layers of thin plastic in between ... skin feels like actual skin moving around >>5479 > Polyurethane foam to add plastic to the outside >>5487 > OpenLOCK >>5674 (related to actuators >>12810) > free spring calculator >>5928 (related to vision >>97) > lidar sensors for less than $100 >>5942 (related to organisation >>4143) > summarize papers and abstracts ... research sandbox >>5944 (related to AI >>77 >>22 >>250 >>27 >>201) > AI simulators >>6420 (related to energy systems >>5080) > alternative energy sources >>6503 (related to actuators >>12810) > compressor-free McKibben muscle using high-pressure electrolysis > hydrogen gas muscle >>6578 (related to AI >>77 >>22 >>250 >>27 >>201) > 'understanding'/real world context of the concept itself > quick mental images , AI, NLP >>6587 (related to AI >>77 >>22 >>250 >>27 >>201) > learning from artificial imagination > world models >>6845 > direct ethanol fuel cells >>6845 (related to AI >>77 >>22 >>250 >>27 >>201) > graph databases >>8311 (related to skin >>242) > fabric skin without silicone rubber > Mylar coated with aluminum > muscles should be fabric and a pliant closed cell foam (>>12810) > touch sensitive foam through carbon black and pressure changing resistance >>8312 (related to vagoo / punani >>419) > private parts could be like a pair of shorts with internal pockets for private parts. >>8314 >>8328 >>8361 (related to skin >>242) > Lycra, spandex, and elastane > full body suit >>8364 (related to actuators >>12810) > which bearing should be used in printed drives or in joints >>8369 > bearing types ....
>>40338 I made a post >>39165 about wanting to make a mono-thermoelectric cell based on an expired patent, where the whole cell converts heat to electricity, only needing to be heated, not having a 'cold' side. On the inventor's site it says he used a cell to run a clock with only room-temperature heat for over 10 years. I figure it can easily trickle-charge a battery from waste heat, but thought about making a fridge/air conditioner that would use some of the power generated to suck-in more heat from the environment & convert it to energy. While that idea might still be practical for making a fridge, an AC, or cooling a PC tower, the best solution would be to make a small, simple circuit that would cause the cell itself to cool under load while regulating the voltage output. I'd seen this patent: https://patents.google.com/patent/US4095162A which claims to act as a voltage multiplier the same way my doodle does, but instead of using AC and 3 plates, it uses 2 plates, one being a metal tube around a glass bulb & the other "plate" being ionizing & deionizing plasma inside the bulb to change the capacitance at high speeds. A copy of a letter from the inventor on rex research makes it seem like it creates free energy, and I have a theory on how that might be true, but it could just be a charge pump that's good at sucking the life out of a battery & maybe do that to the monothermal cell.
>>40384 Ah, yes. I remember that! Do you think you'll be able to obtain the materials, electronics, &tc., you'll need to make prototype assemblies anytime soon, Anon? Regardless, please keep us up to date here on your progress. Cheers. :^)
>>40385 I have basically no confidence when it comes to actually making anything myself. I live pretty much entirely in my own head. I might make a monothermal cell prototype soon, but I keep procrastinating because I'm afraid of fucking up, because I always do. That, and I'm not sure if the quality PVA glue I have is good enough. I've been trying to get help on Fiverr with some other circuits, but the ones that don't want to have an unnecessary & inconvenient Google Meet chat with me in broken English end up asking if I intend on making it a commercial product, or something else that seems like they're trying to squeeze as much money out of me as possible, when they don't just flat-out tell me "no". I've been trying to find help on it for 2 months now & haven't gotten anywhere.
>>40483 Get four diodes, a capacitor snd an inductor. Also s breadboard.
>>40484 Well not an inductor a crystal you know what i mean.
>>40484 >>40485 I'm trying to use Fiverr for a more complex non-waifu project where I don't know where to begin making the circuit. >Get four diodes, a capacitor and crystal. Rated for what? I'm assuming I'd need a high-voltage diode, if it does multiply the voltage like I expect it to, but just "diode" is worthless to me because I don't want to waste time and money burning-out components. (or in case of my other project, electrocuting myself) and I find that with a lot of circuits posted online, either no component values are included at all, or a capacitor will state the voltage, but not the farads, or something like that. And any time I bring this up I usually get a bunch of "if you don't know, I'm not going to tell you" smartass replies that help nobody.
>>40486 I asked gemini and it said if wouldnt work because its not pumping capacitors like a regular voltage multiplier. As for the values if the components youd use thd amount if capacitors to get the final voltage snd get diodes rated for that. The formula is 2*number if capacitors*voltage=final voltage. Also according to gemini. You can use lower value components at the beginning of the series to save a few nickles.
>>40483 You could add sawdust to the PVA or even mycelium to improve the strength. >>40486 Try quartz.
>>40486 I wouldn't trust anyone who gives you incomplete specs. I looked at the patent, and it actually reminded me of a plasma ball. What exactly do you need the circuit for?
>>40501 If its a regular voltage multiplier youd get the components rated for the final value. So if at the beginning its 5 volts(which you can get with those things that come with the arduino kits) and its 3 series youd get them rated for 3*2*5=30 volts in that case you can get the regular stuff 1n4001 diodes and Youd get a 50 volt rated capacitor thats say 220 nano farads. One of the first things i did was make a voltage multiplier.
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>>40549 Nice work, peteblank. I'd recommend you do as much as possible in your design to keep actuator masses as near to the hip axis as possible. This will both improve performance of your robowaifu, as well as reduce the overall design & manufacturing costs. Good luck, Anon. Cheers. :^)
>>40550 None of it will work without the right motor gear combination and the gear motor combination wont matter if it cant lift a 10 kg weight. The motor ill be using the 895 dc will not arrive sooner than the 25th probably or later. So then the experiment will be the dc with gearbox lifting a 10 kg dumbell. Spare me the corporate robots tipping over videos btw im not intimidated by that. I kind of have an idea of what im doing. I know you guys are.
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>>40640 You know after rereading that it does sound kind if crazy doesnt it…
>>40643 Should the walking fail then ill have a robot that can move its legs either way. You guys aren't even trying so don't act snarky.
>>40640 >>40647 Stop being insulting, kthx. None of us here are your personal servants, friend. You do you; we'll all do the same.
>>40647 I really am interested in the walking. That is one of the hardest parts of this project. I'm not a mech e but huge respect for what you guys do.
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>>40649 I mean it probably wont work. I am even cheaping out on the gearbox and plan to use nylon carbon fiber. It doesnt even have a way to fit the shaft but heres to just seeing what sticks.
>>40650 This is a bad idea. The gearbox will use like 400 grams anyways. That filament will still be used for the hip. The motor test will be set back another week.
>>40501 >I looked at the patent, and it actually reminded me of a plasma ball. What I've been trying to figure out is how to make it work without using plasma at all. It sounds cool, but isn't good for miniaturization, heat, or life expectancy of parts. The only other thing left to try is using magnetic fields to vary capacitance. And at that point I think it'd just be a fancy-looking transformer.
>>40493 >You could add sawdust to the PVA or even mycelium to improve the strength. The problem with the quality of the PVA glue isn't the strength. The patent just says PVA, and I don't know if the glue I'm using has any additives in it or not, which may effect the electrical properties.
How can we develop repairability / reusability methodologies for our robowaifu designs & components? https://www.youtube.com/watch?v=o3GrKAPeOds
Edited last time by Chobitsu on 09/06/2025 (Sat) 21:19:47.
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>>41210 Making everything very easy to dissemble and keeping everything as accessible as possible would be a good start.
>>41210 Modularity, and as >>41232 said, making it easy to disassemble. Using commonly available components will also help.
>>41210 Design to be biodegradablity and long term use. Use mycomaterials
>>41236 What if I don't want my robot to literally decay?
>>41237 Some mushrooms can live for thousands of years
>>41236 As what, "leather" skin and "foam" padding?
I think we here can learn many lessons from studying the Gameboy 's successes. https://www.youtube.com/watch?v=BKm45Az02YE
>>41374 You should look into the myth of the Tsukumogami. Lots we could integrate into our design.
>>41396 Yes, I've at least familiarized see what I did there? :D myself with some of the animism aspects of Shintoism. I recognize I wouldn't even be able to stop the Japanese Anons from going there even if/when I helped them convert to Christianity (at least not at first). And this is also an old, old idea going back to well-before the formation of any nation of today's organization. So yeah, I'm willing to entertain discussions on it with them. OTOH, I don't delude myself for even a moment that there are any """frenly""" demons! (and I would that others here didn't do so either... :^) Heavenly angels are solely about the Godhead's business, in perfect obedience. Only the fallen angels engage in such behaviors. And human beings have little spiritual powers (thankfully, given the rampant evils here) during this life for such things outside the purview & direct involvement of God or angels here on Earth. <---> My intent rather was to discuss the technical & marketing aspects of a product that -- at first glance -- seemed unlikely to succeed...yet became one of the biggest blockbuster products in history. That design team's focus on simplicity and low power consumption were the keys to their victory over their competitors. We here should do the same, IMO. >tl;dr This is how we will deliver basic robowaifu kits for ~US$2K-3.5K that can last all day on a single charge; while everyone else will be much more expensive / power-hungry during these initial years. Simple as.
Edited last time by Chobitsu on 09/09/2025 (Tue) 20:43:33.
>>41396 My analysis of the Tsukumogami, and Chobistu's anecdote >>40641 >>40642
> (conversation R&D -related : >>41728, ...)
Qualcomm has been keeping up a very brisk pace for over a year now on their "Intelligent Robotics" SDK releases. https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-260/robotics-sdk-july-2025.html --- One of the biggest PITA with so-called """ROS""", is the horrendous dependency hell involved with setting it up from scratch (along with it being incredibly finicky thereafter to bringing in new libs as well). Qualcomm apparently pulls some of ROS's core packages into their own SDK binaries, so the potential is there at least to eliminate this whole issue outright. If so, then that alone makes this Qualcomm system interesting IMO. Add in the likely support for the upcoming Arduino UNO Q board (cf. >>42176, et al), and this seems like a strong contender for our research here.
Edited last time by Chobitsu on 10/13/2025 (Mon) 06:04:33.
Some'nons may be able to use the Chinese androids as-is to use in developing teleop training regimes. https://trashchan.xyz/robowaifu/thread/26.html#1321
Absolutely excellent post from our frens at /agdg/ discussing what I call "hold on loosely to your ideas" : https://trashchan.xyz/agdg/thread/1375.html#2410 Highly recommend to all Anons here on /robowaifu/ . Cheers. :^)
Edited last time by Chobitsu on 11/05/2025 (Wed) 13:10:35.
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A while back I was thinking of making a pump to circulate fake blood. I figured that the blood would be conductive and I could use magnetohydrodynamics to pump it without any moving parts, but figured that if blood weren't conductive I might use a diaphragm pump instead. Shortly after I thought of using Tesla's fluid diodes as the valves in the diaphragm pump, and the diaphragm itself being just a speaker coil / linear motor for the sake of miniaturization and keeping the part count down. And the other day I woke-up having a weird dream about it. I imagined what looked like piston heads coming together and they have that Tesla fluid valve pattern etched into the surface of the heads, so as the heads press together the fluid is squeezed-out from in between, but the etching forces the fluid to exit in one direction. Basically combining the valve and pump into a single thing. Then I saw a version where one piston head is smooth flat and reciprocating, but pushes against a disc with fluid diode patterns etched into it in a spiral pattern like a record, causing fluid to exit radially. So it was a reciprocating linear motion used to drive a centrifugal pump. Also a motor that wasn't axial or radial flux, but something oddly at a 45° angle, resembling a truncated cone with magnets on it. I woke-up before I could understand how either of these things might be related or even useful.
>>42876 This sounds amazing, Anon. I'd suggest you immediately make time to do sketches of your perceptions before they fade. Who knows but if this could be turned into a realworld set of products that might help the world? Good luck! Cheers.
Great channel for animatronics-style R&D. This guy is clearly an old-timer in the field, and builds his robotics to last! * https://www.youtube.com/@alvaropasseri5754 --- * cf: https://www.youtube.com/watch?v=PwdAPZAbmMY
Edited last time by Chobitsu on 11/16/2025 (Sun) 11:49:49.
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>>42878 Some kind of half-way between axial and radial flux motors might have some benefits, I couldn't even really remember anything about the position or orientation of the magnets seconds after I woke up. And as far as the pump goes, the pattern in the impeller of a centrifugal pump might be useful, but I can't really imagine it would make enough difference for it to be worth it. And the rest of it seemed like a hybrid of a camshaft and a hand pump or hand pump and centrifugal pump in some way I can't imagine ever having any use for. But oddly enough while trying to find how I was talking about, I managed to find this picture of a "conical field coaxial magnetic gear", that's not too far off from what was in my dream. I guess the two things are related, if only vaguely.
>>42885 >Some kind of half-way between axial and radial flux motors might have some benefits, I'm sure there would be many! * Less-likely to destroy cell walls * Less cubic-volume pressure densities * Faster inflow & outflow of serum ports * Higher average, non-destructive throughput >I guess the two things are related, if only vaguely. DONT DISCOUNT THIS FACT Utilize it in your research instead. Godspeed, Anon! Cheers. :^)
Edited last time by Chobitsu on 11/16/2025 (Sun) 11:43:19.
> (related : >>42875, >>42904, ... ) Animatronics control software. https://www.youtube.com/watch?v=CEZ6gYW-gXM https://www.bottango.com/
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BoobCube for anyone that wants 'em https://files.catbox.moe/u7u54v.obj
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>>40337 I recently found a youtube channel where someone is making a circuit similar to what I had in mind, but instead of using an actual 3-plate capacitor, he made a transformer winding 3 coils around PVC pipes, and putting them inside each other. 2 of the coils are AC inputs, and the output coil only powers a diode. His circuit also puts a lot more emphasis on high-frequency switching, while I was just planning on using high frequency AC. My only beef with the design is the coils he uses are massive, making up a lot of the physical volume of the circuit, while I'd like to miniaturize it as much as possible.
>>43184 Good luck with your design, Anon. Please keep us here up to date on it! >>42955 Good, solid modelling Kiwi. <---> Cheers, Anons. :^)
I had some concerns regarding EMF hazards from a waifu-bot. Apart from tinfoil "it's bad, be careful" I didn't have any knowledge of it, so I consulted Grok on the meatter. My prompt- >Contemplating robot waifus and my tinfoil started acting up. Supposedly, cellphones put off harmful EMF waves (or something like that) so it's recommended you put them at least 3 or 4 feet away from you while sleeping. >If a robot waifu's wi-fi worked similarly, would that present the same EMF hazard? I've also heard when plugged in, the charging of a battery could also generate harmful EMF or something. >Could such issues be alleviated with some kind of insulating shielding? Perhaps the wi-fi could be disabled if it's as harmful as I've read it to be? Grok's answer- >The concerns you're raising about electromagnetic fields (EMF) from devices like cellphones are based on a mix of established science and ongoing debates. I'll break this down factually, applying it to your hypothetical robot waifu scenario, which I assume would involve similar tech like Wi-Fi radios and battery systems found in modern gadgets (e.g., smartphones or smart home devices). Note that EMF includes radiofrequency (RF) waves from wireless signals and extremely low-frequency (ELF) fields from electrical currents, both non-ionizing (meaning they don't damage DNA directly like X-rays do).EMF from Cellphones and Wi-Fi: The Basics and HazardsCellphones and Wi-Fi devices emit RF-EMF to transmit data, typically in the 2.4-5 GHz range for Wi-Fi. The "harmful waves" idea stems from worries about long-term exposure potentially leading to effects like cancer, neurological issues, or sleep disruption. However:Mainstream health organizations, including the World Health Organization (WHO) and U.S. EPA, state that at everyday exposure levels (below international guidelines like ICNIRP limits), there's no consistent evidence of adverse health effects. >For example, the National Cancer Institute reviews show no clear link between cellphone use and cancer risk in humans, though animal studies have shown mixed results. >On the other side, some research points to potential non-thermal effects, such as increased oxidative stress, DNA damage in cells, or changes in brain activity from RF exposure. >A large U.S. National Toxicology Program study found evidence of tumors in rats exposed to high levels of cellphone-like RF, but these doses were far above typical human exposure. >The recommendation to keep phones 3-4 feet away while sleeping (e.g., from groups like Environmental Health Trust) is precautionary, based on reducing exposure during rest, even if risks aren't proven. >RF fields drop off rapidly with distance (inverse square law), so a few feet can cut exposure significantly. >Applying this to a robot waifu: If its Wi-Fi operates like a standard router or device (emitting RF for connectivity), it would produce similar EMF. The hazard level would depend on power output, proximity, and duration—close, constant exposure (e.g., cuddling) could be comparable to sleeping next to a phone or router. However, if designed with low-power modes or antennas directed away from the user, emissions could be minimized.EMF from Battery >ChargingCharging batteries involves electrical currents that generate ELF magnetic fields (around 50-60 Hz from AC power, or harmonics like 300 Hz). These are different from RF but still part of EMF concerns.Studies on device charging (e.g., phones or larger systems like EV batteries) show they emit low-level ELF-EMF, but levels are typically well below safety standards and not linked to health risks like cancer. >For small batteries in consumer tech, the fields are minimal compared to household appliances like hairdryers. >In EVs or wireless charging setups, higher fields occur due to inductive coupling, but even there, they're considered safe (e.g., below 0.002 V/m limits in some designs). >One study noted potential cardiovascular effects from prolonged exposure in enclosed spaces, but this is speculative and based on high-power systems. >For a robot waifu: If it's plugged in or wirelessly charging a battery, it could generate similar ELF fields, especially if the battery is large (e.g., for mobility). The "harm" would be low, but if you're concerned, charging it away from sleeping areas would mimic the phone advice.Alleviating Issues with Shielding or DisablingYes, both concerns can be addressed technically:Insulating Shielding: Materials like nickel-copper ripstop fabrics, metallic meshes, or foils can block 80-100 dB of RF-EMF (reducing Wi-Fi and cellphone signals by 99.999%). >These are used in Faraday cages or paints/wallpapers for rooms. >For a robot, you could integrate shielding around the Wi-Fi antenna or battery compartment (e.g., lead-free alloys in cases). >ELF from charging is harder to shield (needs mu-metal for magnetic fields), but distance or grounded enclosures help. Products like router guards or EMF-blocking cases exist for similar devices. >Disabling Wi-Fi: Absolutely—this eliminates RF emissions entirely when not in use. Many devices have software toggles for this, and for a custom robot, it could be programmed to auto-disable during "sleep" modes or close proximity. Wired alternatives (e.g., Ethernet or Bluetooth Low Energy) produce less EMF. >Overall, if EMF worries are a dealbreaker, a robot waifu could be engineered with these mitigations in mind—low-emission components, shielding, and user controls. But based on current science, the risks from typical device levels are low or unproven, so it might be more tinfoil than necessary unless you're in a sensitive group (e.g., electromagnetic hypersensitivity claims). So, is Grok Gaslighting me or am I overly cautious about EMF background damage?
>>43485 I'm no expert on the matter by any means, but if there really were any major health risks from non-ionizing EMF exposure, then sysadmins and cell tower workers would likely be a bunch of shambling human-shaped tumors. That said, shielding is still important to prevent stuff like crosstalk and bit-flipping. When it comes to batteries, the biggest concern is that they'll just decide to catch fire or explode one day, and even then there are some relatively safe battery chemistries to choose from.
>>42876 >>42885 I was thinking about this again as I was nodding-off at work the other day. I was reminded of the MYT swing-piston engine and something about how hydrogen in a conventional internal combustion engine can be too hard to work with because of the timing, and an experiment I saw where hydrogen and oxygen were put in a cylinder with a piston head that shot up when the gas exploded, then slammed back down even faster and harder. The implosion of the water re-condensing was more powerful than the initial explosion. This has deviated a little too much from the heart pump that I wanted to make, and I'm not interested in any kind of combustion motor, but I still figured I'd mention.
Introducing the Chibi Class robowaifu!
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>>43507 You mean a medabot? :)

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