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Open file (428.51 KB 1500x1063 general_engineering-01.jpeg)
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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 ....
> (R&D -related : >>35338 )
> (synchronized-balancing walk R&D -related : >>36994, >>36998 )
Using waste robowaifu body-heat to power a robowaifu walking light show? https://www.youtube.com/watch?v=uNGNP5EXNWs
New research into low power AI on the edge. Here's to hoping it goes somewhere that helps us. https://arxiv.org/pdf/2502.10089
>>37139 POTD Nice find, Anon! This paper's objectives really line up with our engineering design needs here on /robowaifu/ . Cheers, Licht. :^)
>>37139 Very nice stuff you've been digging up. Thanks.
Interesting gear train technique, relying on surface friction rather than gears meshing. I suppose you could call them atomic gears given the fundamental forces governing the behaviour. IMSystems uses this technique for planetary gear systems they refer to as Archimedes Drive. It's essentially turning a bearing into a drive. Relying on rolling friction is potentially efficient, with an added bonus of being as simple as possible. It's just cylinders rolling about each other. This method also benefits from slipping. The cylinders can slide along rather than breaking gear teeth, or worse, her owners teeth! https://www.youtube.com/watch?v=z_FdCGIzG-w
>>37277 Wow, your >pics-related are really interesting, Anon. Know of any thingiverse, etc., printable resources for this concept right now? Cheers.
Any'non know about these stair-climbing wheelchair designs? >related pic: https://trashchan.xyz/robowaifu/thread/26.html#52 >(cf. threads-related : >>2983, >>24744 )
>>37277 Thanks, I think I remember a video from a few years ago about it. This strikes me as something that might hold up for a long time.
Open file (169.76 KB 1008x1203 AigisTraced.png)
Tracing designs can be a fun way to learn and experiment.
>>38254 Interesting. I like where you're going with this, Kiwi. Cheers. :^)
Compiled anthropometric data on western woman. This can serve as useful data for designing a machine which is compatible with everything an adult woman is. Presented as a single sheet to print for reference while designing.
>>38450 POTD Nice work, lad. Cheers. :^)
> (R&D -related >>38465 )
How to make roller teeth gears. Potentially a viable way to produce a high efficiency gearbox at home. https://www.youtube.com/watch?v=VXcuryyRGbo&t=221s
>>38529 Wow, those look amazing, Kiwi. Nice find & thanks! Cheers. :^)
>>38450 Thanks, Really helpful.
>>38450 Nice! Thank you
>>38529 Another great link. Super interesting. I'll have to really lo at it to fully understand what he's done there. Complicated.
Another great video on how brushless motors work. https://www.youtube.com/watch?v=RUS7GGv-UJs
>>38547 THE LEGO FUN HAS BEEN DOUBLED!! This is great stuff, Kiwi. If we ever teach schoolboys these things *, I'd deffo recommend this type of approach. >11'000 RPM Lego Motors!111 Michael Faraday would be so proud! :D Excellent find Anon, thanks. Cheers. :^) --- * Maybe hold yearly "Robotics Week" competitions at the robowaifu factory(s); for private boy's schools during their Summer breaks? Something similar to what NASA does (or did...not sure now)? <---> If we ever actually do go this route, then a 'Robot Design & Engineering Class' curriculum suited to students should be developed by us prior-to. We should make multi-tiered (based on the number of parts, manuals, tools, instruments, &tc., included) classroom kits available for schools to purchase; which teachers can then use during the preceding school year -- so that the boys would have their team's robots all assembled & ready to compete during the big week at the factory. Interested & qualified factory staff could be given free time during the school year, to engage remotely & regularly with the teachers & classes ahead-of-time, as consultants to help guide their team's projects to success. Trophies & other prizes for the winning school's teams in various categories. Rando giveaways. Special rates & accommodations for qualified Boy's Homes. Big wrapup party+concert. Swag for everyone. In a word: treat these kids like kings during that week! :^) <---> I do not want 'Terminatorz-R-Us' -type sh*te to be within the yearly contest themes!! Rather, let's make it about navigating Anon's flat (or the outdoors); doing the dishes by hand properly (or laundry, &tc.); recognizing/responding properly to rapidly-changing (surprising) environments; timed obstacle-course events; &tc., &tc. >tl;dr Similar to all the nominal stuff we here are already aiming to accomplish. We can also throw in lots of AI-related and other things for their robots to demonstrate. Stuff like eloquent TTS<->STT, artistry, logic-puzzles, animal-care, gardening, monitoring & cataloging plantlife & wildlife, weaving & crafts, music-making (NAME MY BAND!! :DD, &tc., to flavor things up a bit. Kind of a Country Fair type scenario such as our own @Mechnomancer (and myself; possibly others here) might relish. Simply be creative ourselves, and always take recommendations from the schoolboys, the parents, & the schools for suggested improvements to the competitions. Everything recorded & edited together nicely after the fact -- with good soundtracks -- to serve as propaganda for the next year's big event! :D <---> We can entice the schools & parents towards the project by us thereafter helping particularly-talented young men network to get placements in realworld jobs (not least of which could be our own firm's jobs!) Ofc, other interested companies can come alongside as Platinum-tier, Gold-tier, &tc. corporate sponsors (no (((military))) horsesh*te, ofc)...once the event took off. We could set up a free jobs fair for the lads right outside the competition arena venue. Various qualified Unis, as well could engage there. >ttl;dr New blood is how you keep a movement alive. TWAGMI
Edited last time by Chobitsu on 05/17/2025 (Sat) 11:37:10.
>>38547 >>38558 > (lego -related : >>38416 )
>>39001 >NEEDS: >speech, robot movement, power supply and safety features <---> Let's address your primary concern here first. Premise: >A US$500Bn-taxpayer-money-theft-tier, Samyuel Copeman-tier, AI video generator setup is needed to: >dynamically run [robowaifu] movements Issues: >muh nuclear-powered datacenter is needed!! >it'll cost muh six-gorillion j*wbuxx!! >else its muh Baste Chinese >then its muh glowniggers, femsh*tes, and conservicucks!! >...and all that that implies!111 :DD My apologies for being so facetious, Anon. Just kidding around a bit. All due respect to you. :^) --- This is a fallacy. We don't need AI Movie Generation -scale capabilities to either a) control a robowaifu's movements, or b) to understand other humanoid's (such as her Master's) movements. This problem was solved long ago in the computer animation industry by skellingtons + (so-called) rigging. Both are highly-mathematical, highly-optimized (computationally-speaking) processes today that are relatively low-power. A) As to the first need, its simply a matter of animatronics-style animation of her skellington's rig. (This is similar to character animation in vidya & film, BTW.) B) As to the second need, its roughly-speaking been commoditized to the point that it will literally run on a few-bucks-cost microcontroller today. [1] So no, we won't need yuge-a*rse datacenters just to manage our robowaifu's bodily motions, nor for her to analyze properly the people/robowaifus in the scene around her. It can all be run onboard, fully self-contained, within the robowaifu's internal compute hardware of today (ie, tiny-PCs, SBCs, MCUs). --- The real issue is the systems control (ie, 'Executive', or 'C4 Systems') software to generally oversee & operate/send-commands to the robowaifu herself. This part is some real frontiersman, trailblazing stuff at this stage. Much has been done within industrial work, and humanoid systems are coming along now too. But we all still have a looong climb up that mountain to go! :^) >(cf. 'Safety' below) <---> Speech. As you mentioned, speech is largely a done deal today as well. The quality & hardware needs vary dramatically at this stage, but my instincts tell me that we can get working robowaifus at a reasonable level today with little other than consumer tier compute hardware -- all running locally there inside Anon's flat -- 100% disconnected & offline. <---> Ahh, batteries... Yes, it's a big issue still. There are ongoing research efforts (primarily in the EV auto industries), and incremental improvements are occurring. As you mentioned, qwik-replace/augmentation approaches are probably needed for our robowaifus today. Additionally, incremental-improvements are still happening with actuators research...an important point. <---> Safety. This is literally the.hardest.task. that we here on /robowaifu/ & elsewhere face, I deem. We're decades away from highly-solid solutions in this arena IMO -- and even then they will only be provisional! OTOH, we don't have perfect safety today with cars/planes/dishwashers/toasters. That fact doesn't stop multi-billion dollar industries from humming along surrounding all these, nor for millions & millions of consumers from using them. >tl;dr We'll muddle along somehow, I think. BUT we'll need some kind of legal-defense union [2] to keep the greedy lawyers, et al, from attempting to destroy the 'little guys' trying to participate in this nascent robowaifu industry. <---> I hope that touches the bases sufficiently to address your great post properly, Anon. Cheers! :^) --- 1. (cf. >>38841, et al) 2. (cf. >>38515, et al)
Edited last time by Chobitsu on 06/02/2025 (Mon) 22:37:05.
>>39001 >>39015 Even ignoring the societal complications, there are problems with having a non-local AI as discussed here; >>38090 >We'll muddle along somehow, I think. BUT we'll need some kind of legal-defense union [2] to keep the greedy lawyers, et al, from attempting to destroy the 'little guys' trying to participate in this nascent robowaifu industry. We should look into LLCs.
>>39021 The solutions for these issues are generally within the domain of the Executive/C4 Systems mentioned already (cf. >>39015 ). The robotic motion control is straightforward, and easily-achieved today -- whether pre-canned (MOCAP live-feeds/motion-libraries, etc.); or programmatic (PGC [1], et al); or (more-likely) a combination of the two. <---> The primary difficulty lies in properly devising the executive decision trees that will correctly mimic wholesome/right-minded (ie, non-kiked) human sentiments & activities with near 100% accuracy. Something I'd be comfortable allowing to watch-over/tutor young kids, for example. Certainly the LLMs of today are not up to the task!! :^) >tl;dr As mentioned, we still have a long way to go yet. Whether the robowaifu's motions derive from MOCAP or PGC sources is nearly-irrelevant to this much bigger question at this stage, IMO. --- 1. ala, MASSIVE, et al https://en.wikipedia.org/wiki/MASSIVE_(software)
Edited last time by Chobitsu on 06/03/2025 (Tue) 02:07:01.
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Testing follow me eyes with 2 inch glass hemispheres.
>>39157 Neat! I think if you can A) Try lenses that are slightly less convex, and B) Try 'eyes' that are slightly concave+moved closer to the lens then you might get somewhat better results. Regardless, very cool Kiwi! Cheers. :^)
Edited last time by Chobitsu on 06/07/2025 (Sat) 04:37:59.
Tutorial for designing a cycloidal drive variant. https://www.youtube.com/watch?v=wijJdARkCBc
>>39158 The printed eye was directly on the glass. New eye is offset with flatter lens.
>>39157 >>39214 Nice work and good idea with the lenses. I tried follow me eyes before, but the sunken in eyes made it look weird. Fortunately, it looks like the lenses solves it. Where did you get the hemispheres?
>>39212 Another great entry here by this guy. Thanks, Kiwi! I may be able to integrate this component design into my smol'r hip actuators (and potentially the shoulders as well). What I really need ATM is an actuator system that is hollow through the center (as in a wheel or a ring)! That way I can 'stack' different actuators together axially into a compact volume. This will be especially helpful in the complex hip areas. If any'non knows of such actuators as opensauce designs (or even inspirational concepts/proprietary designs) that would be most helpful. :^) >>39214 Ahh, yes naicu! That's a good improvement IMO. Did you sketch those eyes? Those are quite good. I really like the idea that among the many, many things we can customize upon our robowaifus (much like changing her clothes), we can change her eyes! Cheers, Anon. :^)
Excellent tutorial on making stronk danboard constructs. Recipe 1 .5 Liters of alcohol 125 grams shellac flakes 15 grams beeswax All mixed on a well ventilated hotplate at low heat. Recipe 2 100 grams of hot glue stick 25 grams paraffin or bees wax 20 ml mineral oil https://www.youtube.com/watch?v=45JhacvmXV8
>>39331 POTD >danboard <uwotm8? who is this "Dan" you speak of? :D I've been playing around with the ideas of papercraft ( >>271 ), etc., type concepts for extremely-inexpensive approaches to fashioning robowaifu bodies. Cardboard is a great choice! I hope we can literally use just paper, glue (incl. wheatpaste), tape, cardboard, some comfy cloths & foams, wooden dowels, paint, now this shellac goop, screws washers & nuts, plus a few 3D-printed hardware components to make everyman robowaifu bodies. (Just for the skellingtons & shells though...they'll still need cheap electronics, batteries, motors, &tc. Software will be free.) Thanks Kiwi, great resource. Cheers. :^)
Edited last time by Chobitsu on 06/15/2025 (Sun) 04:55:12.
>>39242 >Another great entry here by this guy. Thanks, Kiwi! Can you please re-post this link, Kiwi. Looks like we lost that one. TIA.
>>39336 There's great potential for paper skellingtons! >>39337 I believe it was one of these https://www.youtube.com/watch?v=wijJdARkCBc&t=294s https://www.youtube.com/watch?v=pfvy5IcW-8U&t=71s
>>39344 >I believe it was one of these Yes! It was the first one. Thanks, Kiwi! Cheers. :^)
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After failing to make a cute head too many times, I'm studying cute models. Starting with Rem
>>39445 Please just stay encouraged, Kiwi. Facial is literally the single hardest part of 3D Character modelling/animation...so its not just you. I'd say study the master's studies of the female face. This will take lots of time though, so there's that. And we're already about halfway through the year...only 6 months to go till Christmastide 2025/26...
Edited last time by Chobitsu on 06/18/2025 (Wed) 07:24:26.
>>39447 Seconded. Artistry is really hard. The fact that you can sculpt a female body from scratch is already impressive. Your previous model is very impressive, and I'm surprised you're disappointed with it. >cute head Keep one thing in mind, what you're seeing a monochrome material depiction of a face, often completely bald. It will make it not look as good as it would in real life with color. >facial "uhuhuhuh Beavis check it out, he said facial" "yeah hahahaha he did"
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>>39447 >>39453 >le face is difficult. Which is why I humbly suggest prefab. The biggest hurdle is the "robo" part of a "robowaifu". Might have already been said by other folks but kigurumi mask (specifically animegao) would allow for the robowaifu developer to focus on other aspects rather than the face and make kits all the easier. And by using a prefab face you're using a product that has been more or less proven as something the market likes. (Picrel: Spamazon's selection)
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>>39446 Thanks! Did some minor cleanup on the head and here it is as an .obj file. https://files.catbox.moe/ppgks0.obj >>39447 I'll keep at it. The rest should be easy, I'm rather comfortable with arms, bodies, and legs now. I hope to spend Christmas with a waifu this year. >>39453 >Artistry is hard True, learning that more and more over time lol >Bald Good point, adding a hair mesh makes heaps of difference. >>39461 >Those faces I mean no offense to you as I admire your work. God forgive me but, Jesus Christ how horrifying.
>>39453 "huhuhuhuhuhuhuhuhuhuhuhuhuhuhuhuhuhuhuhuhuh..." :D https://en.wikipedia.org/wiki/Computer_facial_animation >>39461 Thanks for the advice, Mechnomancer. Kinda creepy tbh tho, bro... :^) >>39463 Yeah, I think this looks fine. If you can perform a smoothing operation before sending to the printer it should be good IMO. >I'm rather comfortable with arms, bodies, and legs now. Yeah, you're doing very well at it now, IMO. >I hope to spend Christmas with a waifu this year. This.
Edited last time by Chobitsu on 06/19/2025 (Thu) 16:11:12.
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>>39445 Rem or Megu inspired design, which would you prefer?
>>39504 Personally, I like them both! I'd say just go with the one in your pic-related for this post. Time is short. (And you can always go back in later with mods after you have a working waifu). Good luck with this project, fren Kiwi. Cheers. :^) FORWARD!!
Edited last time by Chobitsu on 06/20/2025 (Fri) 18:10:10.
Open file (30.36 KB 312x299 soldier jeebus crust.jpg)
>>39463 >I mean no offense to you as I admire your work. God forgive me but, Jesus Christ how horrifying. Lmao none taken. What the market demands can be quite horrifying. It is what it is |:o)
>>39504 I do prefer the megumin face.
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Hypothetical articulated arm design I noticed that in a lot of fictional depictions of hypothetical robowaifus, people often draw then with ball joints. However, that is very difficult to do in real life. So, I made a relatively simple arm design concept, partially based on the fact that a robot arm doesn't necessarily need to have joints in the same place. It was heavily inspired by a robot arm kit I had as a child Third picture is how it could look like with more professional servos

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