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/DMG/ DIY Motor Generation Axial 01/30/2025 (Thu) 11:08:28 No.36271 [Reply]
>Welcome to /DMG/ DIY Motor Generation! This is the place to discuss DIY motor designs, showcase your creations, and refine your ideas on motor tech. This thread is a requested offshoot of the "Actuators For Waifu Movement" thread to focus specifically on DIY motors. We will focus solely on DC motors. I will start the thread off by talking about the types of motors and terms associated with electric motors to keep a good reference to look back on. It should be noted that most motors are Radial Flux and not Axial Flux. What is flux? Magnetic flux is a measure of the total magnetic field which passes through a surface. Radial and Axial describes the orientation of the magnetic flux. Radial Flux Motor > A radial flux motor is like a cylinder spinning inside another cylinder. The magnetic flux flows perpendicular to the axis of rotation, meaning it moves from the stator to the rotor radially outward or inward. Traditional cylindrical motors (like most brushed and brushless DC motors, induction and steppers) are radial flux motors. Rotor and stator are concentric, with the stator surrounding the rotor. Pros: Well-established, widely used, good for high-speed applications. Cons: Can be bulkier and less power-dense compared to axial flux motors. Axial Flux Motor >An axial flux motor is like two discs spinning parallel to each other. The magnetic flux flows parallel to the axis of rotation, meaning it moves along the shaft’s length rather than outward. These motors have a flat, disc-like design where the stator and rotor are stacked on top of each other rather than inside one another. Pros: More compact, higher torque density, and better cooling due to a larger surface area. Cons: More complex to manufacture, higher initial costs. Kinds of Motors: >Brushed DC Motor: Uses brushes and a commutator for current switching. Simple, inexpensive, but requires maintenance due to brush wear. >Brushless DC Motor (BLDC): Uses electronic commutation instead of brushes. More efficient, longer lifespan, commonly used in drones and electric vehicles. >Coreless DC Motor: Lighter and more efficient than traditional brushed motors, often used in small precision devices like robotics and medical instruments. >Stepper Motor: Moves in discrete steps, allowing precise control. Used in CNC machines, 3D printers, and robotics. >Servo Motor: A DC motor with feedback control for precise positioning. Used in robotics, RC vehicles, and automation. >Single-Phase Induction Motor: Used in household appliances like fans and washing machines. >Three-Phase Induction Motor: Used in industrial applications due to high efficiency and reliability.

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>>36653 >I reduced the number of required user given parameters from 24 down to 6. Wow, this sounds remarkably impressive, Axial! >There are almost 48,000 generated motor configurations based on these example 6 parameter ranges, lol. Haha what could possibly go wrong? :^) >I still think it's beneficial for me to finish mine >I'm wondering If I should just clone and modify their work, but idk yet. No! Please finish your own work, Anon. I think you are likely to have a better tool in the end if you follow your own muse in the matter. >tl;dr When you're done, then go back and dig into MAGGEN . That's my view on the matter anyway. <---> Regardless, this is very exciting progress to see here Axial. You've obviously spent years developing this expertise. Thanks very kindly for choosing to share it here on /robowaifu/ . May we all make lots of homespun actuators for our waifus now!! Cheers. :^)
I don;t know how helpful this will be but this guy who wrote and astounding amount of articles on electronics, computers and that sort of stuff has a couple articles on a, supposed, simple way to calculate fields. Judging from his output I would suspect he is right but I don't know for sure. He provides software but it's in postscript which he was enamored of. PS is an actual programming language that can do anything any other can do. If I'm not mistaken it;s sort of in the same class or operational style as Forth. Stack based I believe. Anyways here's the page. Has a ton of articles. Go down until you see "Fun With Fields" "and "Simple new EM field solutions", while you're at it search for "Magic Sinewave" on the same page. These are spikes or rapid on-off signals that when their harmonics are combined give you a fairly perfect sine wave with some much higher harmonics that can be easily filtered. https://www.tinaja.com/eeweb01.shtml He has a ton of great articles.
>>36271 Well, I hope you're still with us here, Axial. Been wondering what's happening with you lately, Anon. Cheers. :^)
Robert Murray-Smith has an absolutely kick ass video here. It's for a generator but all he says equally applies to motors. It's also without iron as Axial prefers. He gives reference to other videos he has to wind these serpentine coils. He places these and magnets in 3D printed forms to make the generator. 1931 A More Powerful And More Efficient Generator And How To Build It https://www.youtube.com/watch?v=BX7UgVSUOBE He has a ton of videos on all sorts of stuff and a WHOLE LOT on generators and motors. What is so good about a lot of his videos is he explains what he is trying to do in simple terms and makes most everything out of simple stuff you can easily acquire. He has two channels. One with his name and one called Thinking N tinkering. Both good. Let's look at some of the huge advantages of these serpentine coils he makes. He winds these as just a big coil of wire then bends it around a form. Think of the trouble to wind a bunch of little coils like a normal motor/generator compared to one big coil and stuffing it in a form. The time saving is immense. The key here it not necessary exactly what he built, though it's good, it's looking at the way these are arranged and seeing how much the same can be used as motors. A simple example is, does the coil have to be in a circle? No it could be like the linear motor that Axial showed a picture of in this comment. >>36432 You make your form, wind this big round coil then stuff it in the form. Here's another simple idea. Does a Halbach array have to be made of magnets? No you could do the same with wire coils. And using Simth's technique you could wind a big coil then thread it through a form to make the array. See the array in the first picture here

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Edited last time by Chobitsu on 03/10/2025 (Mon) 10:23:36.
>>37407 POTD Great resource, Gromment. Cheers.

The important question Robowaifu Technician 09/18/2019 (Wed) 11:54:39 No.419 [Reply] [Last]
Vagoo. I can't speak for anyone but myself but I'd like to get.. intimate with my fembot. I'd like to know what my options are for her robopussy. I was thinking something like a flesh light with sensors that triggers voice and arm action. I'm using Myrobotlab is Anyone familiar with it?

Robosex general I guess
170 posts and 52 images omitted.
BTW this guy here has a huge number of fiberglass videos. It's for boats but fiberglass is fiberglass. It covers a wide range of techniques, coatings, and all sorts of stuff for boats but like I said, it all much the same. https://www.youtube.com/@FishBumpTV/videos
>>37310 Thanks, Grommet! He seems like an expert on these topic.
>>37286 >>37309 I patched it in the interim.
>>37334 >I patched it in the interim Thanks
>>37352 Nprb, mate. I wouldn't have noticed it if NoidoDev hadn't pointed out it was broken. Cheers. :^) >=== -add'l edit
Edited last time by Chobitsu on 03/07/2025 (Fri) 07:48:03.

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nandroid project II Emmy-Pilled 09/11/2023 (Mon) 01:03:11 No.25306 [Reply] [Last]
building own personal nandroid doll continuation of previous thread: https://alogs.space/robowaifu/res/19226.html#
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>>34253 I would disagree, as it has always been present on the TGE model since the beginning. And clearly based off Emmy's total of four lashes per eye as seen in nearly every panel of her drawn by Dom
>>34267 in that second Dom-made image you posted, her left supposed "Rotation Seam" if it were one would have been smaller due to perspective changes, but instead is the same size as her right one. To me this indicates that they're eyelashes that stick slightly out and away.
>>34317 it can be tough trying to get things completely accurate from Dom at times, his emphasis on size can vary quite a big from page to page
Damn he is gone again
>>37081 >again Well if this happened before, maybe he just is busy. I can definitely attest to that, many times I disappear (though for not that long for sure) because of stuff and bullshit.

Electronics General Robowaifu Technician 09/11/2019 (Wed) 01:09:50 No.95 [Reply] [Last]
Electronics & Circuits Resources general

You can't build a robot w/o good electronics. Post good info about learning, building & using electronics.

www.allaboutcircuits.com/education/
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I don't recall exactly where we were all talking about creating DIY garage-fabs, so I'll put this here for now. >Using mercury lamps as a UV light source ASML is able to get 220nm features out of a dry process. https://www.asml.com/en/products/duv-lithography-systems/twinscan-xt-400l Surely not cheap, but conceivable for a small robowaifu factory.
This here might be interesting for people who want to make sure they can go into prepper mode if they can't get their PCBs online anymore: https://jimlaurwilliams.org/projects/seychellePaper/index.html >Of the several types of etchant chemistries the hobbyist can choose, acid cupric chloride (also called acid copper(II) chloride or just cupric chloride) is one of the more interesting types, since it has the ability to be regenerated, or replenished, without having to throw away the solution.
>>16224 The answer to whether you should buy it is always yes
> (I2C convo -related : >>32583, ...)
Do you even thermionic diode vacuum tube your robowaifus, bro? :D https://www.youtube.com/watch?v=FU_YFpfDqqA >=== -funpost edit
Edited last time by Chobitsu on 02/19/2025 (Wed) 03:12:31.

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Local Non-LLM Chatbot GreerTech 01/13/2025 (Mon) 05:35:09 No.35589 [Reply] [Last]
I was thinking, instead of using a costly LLM that takes a high-end PC to run, and isn't very modifiable, what if we use a simple chatbot with prerecorded voice lines and/or Text-To-Speech? This was partially inspired by MiSide, I realized that you don't need complex responses to create a lovable character <---> >(Chatbot General >>250 ) >(How may we all accomplish this? >>35801, ...) >=== -add crosslinks-related
Edited last time by Chobitsu on 01/18/2025 (Sat) 21:34:03.
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>>36992 That's what I was thinking about when I made this thread. It can definitely run on the hardware we have now.
>>37004 Yeah, this is still a great thread idea, GreerTech. >>37010 Thanks, Anon!
>>37010 >https://github.com/Гунтhercox/ChatterBot Lol. Apologies Anon, you've run afoul of our longstanding /cow/-esque wordfilters. Let's try this codeblock version? https://github.com/Гунтhercox/ChatterBot
>>37056 >lolnope.exe Hmm. For some reason I thought Robi patched that for codeblocks. Anyway, for the uninitiate: here's the proper letters (rm spaces): g u n t hercox

Bipedal Robot Locomotion General Robowaifu Technician 09/15/2019 (Sun) 05:57:42 No.237 [Reply] [Last]
We need to talk about bipedal locomotion. It's a complicated topic but one that has to be solved if we are ever to have satisfyingly believable robowaifus. There has surely already been a lot of research done on this topic, and we need to start digging and find the info that's out there. There are some projects that have at least partial robolegs solutions working, but none that I know of that look very realistic yet. We likely won't come up with some master-stroke of genius and solve everyone's problems here on /robowaifu/, but we should at least take a whack at it who knows? We certainly can't accomplish anything if we don't try.

I personally believe we should be keeping the weight out of the extremities – including the legs – while other anons think that we should add weight to the feet for balance. What's you're ideas anon? How do we control the gait? How do we adjust for different conditions? What if our robowaifu is carrying things? What about the legs during sex? Should we focus on the maths behind MIP (Mobile Inverted Pendulum), or is there a different approach that would be more straightforward? A mixture? Maybe we can even do weird stuff like reverse-knee legs that so many animals have. Robofaun waifu anyone? What about having something like heelys or bigger wheels in the feet as well?

I'm pretty sure if we just put our heads together and don't stop trying, we'll eventually arrive at least one good general solution to the problem of creating bipedal robot legs.

>tl;dr
ITT post good robowaifu legs

>tech diagrams sauce
www.youtube.com/watch?v=pgaEE27nsQw
www.goatstream.com/research/papers/SA2013/SA2013.pdf
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>>33972 Oh, OK got it. Heh, I thought you were saying the motor weighed a ton. :^)
Thanks for all the YouTube links, but please add some some description when posting. Ideally more than one line. These videos have a text description on YouTube which can be copied. With ">" you can quote it, though make sure to put this in front of each paragraph when doing so. Cheers.
> (synchronized-balancing walk R&D -related : >>36994, >>36998 )

Selecting a Programming Language Robowaifu Technician 09/11/2019 (Wed) 13:07:45 No.128 [Reply] [Last]
What programming language would suit us and our waifus best? For those of us with limited experience programming, it's a daunting question.
Would a language with a rigid structure be best?
Do we want an object-oriented language?
How much do you care about wether or not a given language is commonly used and widespread?
What the fuck does all that terminology mean?
Is LISP just a meme, or will it save us all?

In this thread, we will discuss these questions and more so those of us who aren't already settled into a language can find our way.
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>>36722 ????? I thought they were just some lite resource Linux??????
>>36722 yeah its fine, i get blow outs too, point is you dont have the luxury of being exclusive and that was an #include/#pragma joke
>>128 I'd say for code that is going to make up parts of it that are going to be called often, like if you were to add a GPU into the robots to be its "brain" to navigate around like a human would (and have reflects and spacial awareness and so on), then this should be written with something like C or C++. The other, "higher level" stuff, can be written in a scripting language so it's easier for people to contribute to and isn't going to affect performance/power efficiency that much. You'll often see this with video games. Where the main engine, that'd rending the graphics on the screen and doing the heavy lifting, is all C/C++. Then for things like your quest system, you might use something like Lua or Python so it's easy for even novice programmers to add new things into the game (they're working with simple scripts that hide the complexities of the engine and let them focus on making things). You'll also see this with game mods too, it's a tried and tested approach. If you're curious, look into something like "plugin architecture" - essentially it's dead simple to make mods or plugins this way. the application itself has a /plugin or /mods folder, you just copy in the script files as their own folder and that's it, when the application starts it scans that folder and integrates it. So now even a brainlet can extend the main functionality and not have to do anything complex.
We've discussed Formal Verification here before : ( <several posts I can't find right now b/c we don't have a perfect index of the board in our Library thread, and I don't have Waifusearch on this box>(lol), >>33900, et al). F* seems rather rigorous, and likely would be very handy for us to master here for several crit-secs of our C3 robowaifu systems codebase. https://fstar-lang.org/
>>36736 >and that was an #include/#pragma joke Lol. Me and my fast lightning mind missed that one. :D >>36776 >The other, "higher level" stuff, can be written in a scripting language so it's easier for people to contribute to and isn't going to affect performance/power efficiency that much. I get the argument, Anon. But the simple truth is that yuge swaths of 'judgement-oriented' code (ie, such as is pertinent for >>10000, et al) are both high-level, and have to execute lightning fast to be of any realworld, practical use. If we have to just go on without any command outputs for, say, 10 seconds (or even 1 second) while Python parses it's complex decision trees to decide if -- while 200kg robowaifu is merrily rolling along in the kitchen cleaning things up after dinner -- she should continue driving over the baby now surprisingly lying on the floor directly in her pathway or should she stop first before that happens... then lots & lots of bad things will ensue! :DD >You'll often see this with video games. Again, completely understood. OTOH, most times people don't actually die in the realworld while vidya'g. Robowaifus (and robots in general) can actually kill you accidentally. >tl;dr It's complicated. :^) >===

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Edited last time by Chobitsu on 02/14/2025 (Fri) 04:23:17.

Robot skin? Possible sensitivity? Robowaifu Technician 09/15/2019 (Sun) 07:38:17 No.242 [Reply] [Last]
The Anki VECTOR has a skin-like touch sensor on it, could we incorporate it into our robogirls?
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cont. My priorities are: 1.tree trimming/felling/removal robot.(not humanoid, more like a insect/squid/thing that climbs trees and "shears" off the limbs. Not cut with a chain saw. Far more efficient, quieter, less mess) 2. gears, wenches, tackle, inductive reactance electric motors, fiberglass or other structures for the above and for my sailboat (which is so radical I fear to talk about the hair brained ideas I have. If I were to do so the sailboating community would hunt me down like Frankenstein with torches and pitchforks) :) robowaifu However all of the above are all necessary to build the parts for a robowaifu, and DIRECTLY related. So it may be I will mesh all of these at the same time as I learn. As you can imagine this will take...a while. I can see the robowaifu last, as I haven't a clue how to build the software to get this thing to do what I want. It's, I think, a huge leap far above making the motors, body, etc. I can see a clear path to all of the mechanical side. Maybe not easy, but I can see a path. The AI, I have no idea without spending a damn fortune which would torpedo the whole thing. I REALLY would like it as it would be a great addition to the first task, tree trimming/felling/removal. Sailing my boat as a sort of auto-pilot and other unmentionables. As you've seen me commenting over a year, I was spitballing ideas. I like to write these down even if they are a bit hairbained. For some reason writing them down, even if it makes me look foolish at times, helps me "see" them and organize my thoughts. Hard to explain. I now believe I have a basic game plan, and I'm now accumulating the tools, materials needed. I have the 3D printer and the beginnings of the materials needed. So soon I should start experimenting. I also have ordered and received, some ESP-32 microcontrollers. I still need a few more things. Lots of bits and pieces. I will definitely be getting some of this plastisol resin. Some of this stuff I talked about I ran across a guy, tech ingredients, who has this great video. I didn't get all my ideas from him but he puts a lot of them in a nice package, which I'm not so good at. Most of the ideas I have are just common sense and thinking about it leads people to the same path. If you want to understand how to get low cost strong stuff, you have to see it. He's doing something different, making body armor, but the basic principles are the same. The first video is about hard surfaces, tight material packing and different materials needed. The second is basic composites and good but someone who already knows about composites might could skip it, but I think it's useful. Super Strong Epoxy with Diamonds and More! https://www.youtube.com/watch?v=6KjlyXKeo8c

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One other thing I have already. I've been working on accumulating stuff I need slowly. Cerrosafe Metal | Low-Melting Point 158-190℉ Bismuth-Based Alloy I have a pound of this. So you make a mold and put this in the mold. My thought is the areas in the NASA chainmail that are internal. Stuff that can't be molded. I make a negative mold of all these interior parts from this metal, place in outer mods, pour resin, matrix, then melt the metal out with hot water. It's reusable indefinitely. I only have a pound but it's plenty to test with.
The topic here was originally "sensitive skin". The thread for materials is here >>154 and for armatures >>200 and the main thread for someone showing off the prototypes he has build is here >>28715
>>35291 >>35292 >>35293 Great information, Grommet! I wouldn't dream of criticizing your goals, except in this one detail: they're not expansive enough yet!! >tl;dr Go big, bro! :D >>35300 Fren NoidoDev is right. For the sake of being able to locate such information in the future more-easily for every'non, perhaps move each subsection of this discussion to the appropriate threads? <---> Thanks, NoidoDev! You're always there for us all, to help keep things better organized. That's much-appreciated, bro. Cheers. :^)
>>34724 > The body would then be dipped in a bath or sprayed with layer of fluid containing keratinocytes that would attach onto the TPU and form chemical bonds. This would then be cultured until the desired skin thickness is met and the keratinocytes would be killed via heat sterilization. Neat! >Totally having a GITS vibe with this... There are tons of issues involved with intentionally keeping living cultures in our robowaifus, but perhaps the skin is our single-best option. Thanks, Anon. :^)

Robot skeletons and armatures Robowaifu Technician 09/13/2019 (Fri) 11:26:51 No.200 [Reply] [Last]
What are the best designs and materials for creating a skeleton/framework for a mobile, life-sized gynoid robot?
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>>36324 >>36325 Decided to do a snap to clarify specifically: https://trashchan.xyz/robowaifu/thread/26.html#43
>>36331 This in the middle is just some regular infill, I think. It can be selected in the slicer. Looks clearly like "Gyroid Infill" https://help.prusa3d.com/article/infill-patterns_177130
>>36366 POTD Excellent resource, NoidoDev, thanks!! Yeah, that looks exactly like the same kind of infill. Just looking at it, I knew it would be strong in every direction (a fairly high-priority, in a dynamic system like a robowaifu), and the notes in your link confirmed that. <---> Thanks again, Anon. Cheers. :^)
> (skeleton joints, etc. -related: >>39006 )
> (UWMWPE tubing & rods -related : >>39010 )

Dolls, Dollmaking Techniques, and Their Use for Robowaifu Construction Greentext anon 01/16/2024 (Tue) 05:14:05 No.28514 [Reply]
Dollmaking is an ancient art, dating back as far as recorded history. Throughout these many years, dollmakers have invented and innovated at a steady pace, making each doll just a little bit better than the last while still leaning on tried-and-true techniques. This thread is here to discuss those techniques, and other relevant aspects of the doll world (including mannequins and marionettes) which we can apply to make our own waifus. One common example most of you may have seen already is the ball-jointed doll. However, there is more than one type. Higher-end BJDs commonly use elastic string to bind limbs to sockets in a method not too dissimilar to how tendons link our bones. There are also peg linked joints. where you (usually) have two hemispheres connected to eachother and connecting two seperate limb parts with pegs. There are also double-joints which work on the same basic principle. The attached images show both principles. Simple hinges are also quite the staple. They often have varying levels of tightness, depending on the application. A marionette, for instance, will typically have very loose hinges which allow for great ease of movement via user-operated strings. A system like that is quite easy to motorize, though one would want to consider how to get the limbs to stay in position without constant motor input. On the more complex end of things, some dolls feature endoskeletons, which allow for more realistic sometimes and complex poses. However, in addition to being more complex, these are much more expensive, fragile, and difficult to repair. While some of these things could be solved here, I doubt that a perfect solution is realistic at this time. It's good to keep in mind, though. Outside of basic frame components, there are also the details, such as the eyes. Glass eyes have the interesting effect of "following" the viewer without requiring any motors or electronics. Weight and cost are both important considerations, however, especially for a full-size waifu with anime doe eyes. Resin eyes are also quite popular, as ithey're easier to make at home. Wigs, of course, are also important to consider. I assume everyone here will want their waifus to have hair, and said hair will be easier to install (and detach for cleaning) if treated as a seperate component. They're usually kept in place with simple elastic, and I imagine it'd be easy to introduce magnets into the equation for better stability. What do you guys think about these concepts, and what do you have to add? It's a vast field, with plenty of potential uses for waifu making. Concepts from doll-adjacent items, such as action figures, plushbots, puppets, etcetera are also welcome for discussion.
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>>36002 Related
>>31408 I find that the Backyard AI app is good for that. If you want an offline version, I made this guide.
>>36041 Thanks, Robophiliac! As you might guess, finding information here after the fact can be tedious. Keeping things sorted into proper threads+crosslinking helps immensely with this issue. Cheers, Anon. :^)
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>>36002 Discussion thread that preceded the "My Size Barbie BJD" thread on the dollforum: NSFW https://dollforum.com/forum/viewtopic.php?t=57877&start=0
>>36105 I like the clean layout of that image, Robophiliac. Makes it a bit easier for my autistic mind to consider fully. Thanks! Cheers, Anon. :^)

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