The brain circuit is a MSP430 Ultra-Low Power MCU
eZ430-F2013 Development tool

The target board is removable and works by itself (given that it has electric power to operate)

I could insert more than one potentially and wire them together for more functionality

Its small enough that it fits (its about 2cm wide and 2cm long circuit board)

plugs in with usb and can be programmed with C programming language to control

8 inputs/outputs (which can be further linked to give more inputs/outputs)

>>266
>> 267
/hover/ BO here, I just found out this board's on here, I see you have the first part of my thread
Stand by, I'll post what I found of the rest of the thread that I archived in the form of pics for now

There was more to the thread but I'm not sure where those parts are right now.
Here are some 2018 pics I posted before

I ended up putting the parts for the mini Lapis into a box so I wouldn't lose the parts, its all still there so I can work on it again but I need to figure out some details with it first, like how to properly do the actuators

The joints for the elbows work, the chest was fixed and I was working on spine segments

There was a vid showing the elbow moving but I don't know what happened to the vid

I have this reference model in a digital 3d program which shows what she looks like from all angles

I tested some circuits like seen in >>982 but other than that not much has happened with this project for a while for a number of reasons, but I'll report progress when able

>>979
>/hover/ BO here, I just found out this board's on here, I see you have the first part of my thread
Hi /hover/ welcome back, I'm glad you found us again. Thanks for the archive pics, etc. I'll eventually restore the rest of the thread, this OP was originally just a placeholder (as with all the threads here). I probably have everything but the pdfs and webms if any were in your thread.

BTW, we owe you a debt of gratitude OP. You really established the Fairybot class of robowaifu for everyone, so thanks. These will be very important in the future when this tech really takes off.

>>993
I could use this as my new thread then
I have a bunch of tiny neodymium magnets I could experiment with making electromagnet actuators out of, but ideally it would be better to pair them with nickel-cobalt magnets to make electropermanent magnet actuators

>>1001
Right now there's these two options;
https://hackaday.com/2018/04/17/diy-magnetic-actuator-illustrated-and-demonstrated/
https://hackaday.com/2018/08/25/better-motion-through-electrostatic-actuators/
Static electricity seems to use too high voltage for actuators tho so that might be tricky to get working, which is why magnetic actuators are next in line

>>985
I just found the video

>>1001
>>1002
Great, sounds good then. I found this link via your first link. Seems interesting and potentially pertinent.

hackaday.com/2017/02/10/a-micro-rc-plane-builder-shares-his-tricks/

>>1004
Great. Please repost any other video files you have, as I have none.

>>1005
shagrug motor seems to use single magnet with a hole in it, with the wire wound directly onto the magnet (and small frame)
I don't have such small magnets with holes in them and trying to saw or drill a neodymium magnet doesn't really work (they're too hard)
It takes a while to wind a coil by hand and it helps to have some kinda support frame
The landing gears seem to use a special wire, haven't looked into that much but its interesting

>>1009
Please keep us updated on your progress when you can /hover/.

>>1011
I was looking at the arm again, there's an issue with it getting stuck, it can be seen near the end of the vid in >>1004
The string gets stuck between the "bones" I thought a solution might be to have the thread got through another insulator tubing on the other side but its tricky to get it to align in the right spot
I've been arduino coding another project and thought of using the MSP for it, but I could get another MSP. Sometimes when working on other projects one finds solutions to the project one was stuck on before.
I'm still thinking about what the best way way is for making an actuator frame without 3d printing it

>>1034
>I thought a solution might be to have the thread got through another insulator tubing on the other side but its tricky to get it to align in the right spot
actually, i believe that probably is the right solution anon. find some thin Teflon tubing, but and adhere a tiny little guide-ring from it, and i bet that will take care of the issue for you.

>MSP
sauce?

>without 3d printing it
no printer yet?

>>1035
I already threaded the thread through red insulator tubing (its from a small red wire)
I'm thinking now that it could maybe be glued in place with superglue or something, need to think more about how to best go about this
>MSP
The MSP430 processor on the dev board seen in >>267 I have access to some of them but only know the location of this one for now, the other ones are seemingly missing I should practice coding more on this one first anyway
>no printer yet?
I don't have access to a 3d printer for now, the city fab lab doesn't seem to have open hours anymore, but bizzare thing is they do have them out in the country in smaller towns, I'm pretty sure all the fab labs have 3d printers
Fab lab works a bit like a library for tools except they're heavy tools so you just use them at the fab lab (these kinda labs are all over the world now)
Also might be kinda tricky to 3d draw the parts properly but I might do that later actually, this one could be more of a prototype

>>1037
Teflon is explicitly designed to stay slippery. You might have better success using it over plastic insulation.

>MSP430
ah got it. i plan to eventually repopulate the threads here, including the electronics learning class one.

>Fab lab
cool. i've never been to one yet tbh. expensive?

>Also might be kinda tricky to 3d draw the parts properly but I might do that later actually
There's the Fusion 360 product anon, and Blender too ofc, whenever you feel inclined to design a reproducible system others can create as well.

Good luck.

>>1038
This insulation actually works surprisingly well like the video shows >>1004

Booking at a specific time probably costs, but I'm not sure how much and its kinda irrelevant for me right now anyway since I don't have money to spare
But it used to have open hours here for the public on specific days, I'm not sure if they have those open days since the schedule doesn't show it, but it still reads on the front page that they do, I'll have to check on that better later

I actually happened to get lucky the other day and got a bunch of 3d printing filament for free

Funnily when I started out making models for 3d printing I used sketchup

>>1039
>I actually happened to get lucky the other day and got a bunch of 3d printing filament for free
very nice, gratz.

>Funnily when I started out making models for 3d printing I used sketchup
cool, cool. how was it?

>>1042
It worked out fine, I would prefer to use something else for detail work tho

>>1047
Fusion360 can get as detailed as they come. The (((Autodesk))) and (((cloud))) lock-in aren't to my tastes however. I think I'll stick with Ton & Blender.

>>16547 Hik, you mentioned printing a model from Blender but felt you needed better understanding of Blender. Could you please share your print and what you'd like help with in Blender?

>>16550 Sorry for slow response I've spent some time now getting into blender more, I have used it before like when I was working on importing models to a simple Portal 2 mod I worked on in late 2017, but the interface still gives me some trouble. The MMD models have "bones" which are used for animating the models, to make them be able to change poses, positions of limbs in the correct way, to make them able to move and dance. I'm thinking this could also serve as a sort of a basis for a robowaifu, but the structure is a bit complicated to get into. I also have friends who might like 3d printed figures of their fav MMD models. So that's something I'm looking into. For now I think it might be better to deal with individual parts so that its easier to get into and manage, I think the MMD models might be trouble for someone who's not too familiar with blender. I've been busy watching youtube vids about how to do stuff in blender and I made some simple test pieces and managed to print out some forms, pyramids and cylinders from blender. I configured blender to millimeter settings before getting into the 3d printing extension. Curved parts are kind of complicated to me right now, if I were to make a skull, it would be difficult for me to manipulate it to look like I wish it to. Let alone a pelvis bone.. I found this tune called "Android" featuring Lapis voice; https://www.youtube.com/watch?v=YVcnMC1144o

>>16583 I delete bones on models that will be printed. Blender has given me some issues when modifying models ripped from games when they had their bones. You're well on your way to figuring things out. Quick tip for making curved features, try modeling a low poly version of what you'd like then use the subdivision modifier. https://docs.blender.org/manual/en/latest/modeling/modifiers/generate/subdivision_surface.html

>>16584 Thanks for the link. I downloaded a skeleton model, maybe that will help. I'm considering soft robotics. Maybe there could be tubes or balloon things with fluid in them. Combining that with 3d printed bones for biomimicry. I like the idea of having sort of tendons that transfer displacement to move bones, like actual natural legs work I mean. I'm looking at switchgears (electrical) and differentials. Maybe there's some useful ideas to be gained from studying these. The electrical system of the body works in electrical dc impulses. There's also more to the body than that, there's subtle energy and energy centers. I'm very into this life-like quality so I consider a lot of things most wouldn't. Maybe mineral oil or olive oil will work for breasts, thighs or such.

>>16585 >Soft robotics with an internal skeleton Are your current plans for an independant waifu or, for Lapis to be on a pedestal? I know you're quite firm on her being 15cm but, my engineering advice depends on whether or not her power will be internal or external. >Olive oil fun bags Based in Italian Though mineral oil in silicone if properly cared for would work very well. Mineral oil could also work as a decent working fluid for a hydraulic system, though water is best for small scale low power DIY systems. This tutorial will be relevant to you: https://youtu.be/LBnUZ-AEuWw

>>16587 For starters I'll connect her up externally, but the long term goal is to make her fully autonomous I like the silicone idea I loaded the skeleton model into blender, it will serve as a good reference, I'll have to dig up the MMD models again and see if I can import those into blender too.

>>16592 Gratz Hik! You're on your way with ultimate Blender mastery. Looking forward to your progress, pls be patient w/ yourself and the tool. I personally find the fact this is a true, open-sauce guerrilla project by Ton & Co. that's actually hitting the big-time now a great inspiration for us all! :^) Sauce on skellington BTW?

>>16596 Its from www.artec3d.com I'm not gonna do anything with it other than use it as a reference, that means I'll study the structure of it but otherwise leave it be and instead make my own models inspired by it I'm very interested in biomimetics, I'm looking at how muscle contraction works and how to do joints and such, I might not make the skeleton exactly human, but it will be very inspired by human and animal structures Maybe if one has like a balloon with liquid in it and squeezes it in certain places it may work like a natural muscle..

>>16598 Thanks! >I'm very interested in biomimetics, I'm looking at how muscle contraction works and how to do joints and such, I might not make the skeleton exactly human, but it will be very inspired by human and animal structures Me too. You might have a look at this short clip (and the sauce) for some inspiration for cable-driven 'tendons' that seems to actually account for much of the complexity in real human legs. > (>>16415 >Tendon-driven leg -related) >Maybe if one has like a balloon with liquid in it and squeezes it in certain places it may work like a natural muscle.. Yep. I would recommend you review both of our actuator threads (>>406, >>12810) where, IIRC, this general topic came up numerous times. I think pneumatic air-'muscles' came down as the favored general-consensus. Looking forward to your designs! Cheers.

>>16592 Given that you want her to eventually be autonomous, 15cm is too small for hydraulics/pneumatics. I have used hydraulics and pneumatics in the field and I'm confident I could help you miniaturize things, using DC motors would make things much easier. If you still want to use fluidic power systems I'd strongly recommend making her larger. Micro pneumatics really work best if the subject is connected to a large source of air pressure. Lapis Chan would look cute on a pneumatic base disguised as a balloon.

>>16602 I'm not going to be using pneumatics for actuation. I will do some experiments with using the fluid balloon muscle idea later. Today I 3d printed two upper arm bones that are pretty much identical to the wooden ones I made before. The model is 2mm diameter cylinder, 24mm in length, with 4mm flat areas on two sides on one end of the cylinder, where a 1mm diameter hole is situated about 2mm from the edge of the tip.

>>16617 Excellent. It's exciting to see dear Lapis-chan's resources coming back into action, Hik. Godspeed your experiments! :^)

>>16617 Are you planning on using micro hydraulics then? Nice to see you back to making bones

>>16623 Here's an idea I had, I don't know yet if it is any good or not; >>16629 I have backup plans and if all else fails I'll just use strings/wires/chains and pull or release those with motors to make the actuation work.

Today I imported 7 different Lapis models into blender. I could also use MMD to get them to display more easily as fully textured references and change the poses and such. I also worked on refining the design for the skull and considered various ideas. Later on I may upgrade my 3d printer and print with flexible TPU filament to maybe make skin and fatty parts. First I'm going to print a lot more things out of PLA. I picked up a bone/ivory color filament today and tested printing the upper arm bones out of that material. Progress may be a bit slow, but I'm working on multiple different things.

>>16640 Glad to see you're still making progress! Keep it up and best of luck!

>>16640 >I picked up a bone/ivory color filament today and tested printing the upper arm bones out of that material. Neat! May Lapis fly soon!

I managed to make models in blender and print upper leg bones so I'm showing those off here now. This is the simple stuff, work on the skull continues.. (it is tough to make properly)

>>16862 Good job, Hik. Thanks for the progress report. You might try looking at some facial modelling videos in Blender for Lapis' skull? Cheers.

I have returned I was busy moving out from my parents earlier this year and getting settled in Anyway I'm thinking that since data storage has been miniaturized in these tiny usb keys, it would be neat if I could get rid of the usb connector itself and read/write directly to the data storage device by simply connecting 4 wires or such to where the usb connector was connected, this way I could potentially have a lot of data storage capacity in a very small space, if the tiny microcontroller had access to such data capacity, maybe it could do a lot more neat things.. But its not that easy is it? I might need something to recognize the former usb key device.. voltages need to match and all that.. Is this a possibility? What do you guys think?

>>45593 Could maybe use a microSD card if it fits..

>>45593 Hello Hik, welcome back! Good to see you ol' fren. I was quite pleased to see this thread bumped in the catalog before I even knew you were here again -- I always enjoyed this thread. :) >accessing the memory chip w/o the bother of the USB connector I'd say that should be very doable, as long as you continued to interface with that packaging via the USB protocol itself. I'm willing to guess there are videos out there of tinkerers doing something very similar, if not exactly that? >>45594 I think this would be a very good choice instead if you can use that approach. Quickly swapping them around not being the least of the benefits. <---> So how have you been otherwise, Anon? I hope things have been going well for you in general. We're soon to celebrate our 10th birthday! BTW, having looked into it, I think you could use resin printing to get much of the detail & sturdiness needed for the shell of your dear robot fairy. Have you thought of this?

Now I'm thinking maybe a tiny transceiver, they might have been miniaturized enough by now This one's pretty close to fitting: https://www.youtube.com/watch?v=6rKpxAWZ7uM?si=2GhX830-Q0BxMkIp&t=330 Maybe it could be compacted a bit to fit There's options at least

>>45595 >So how have you been otherwise, Anon? I hope things have been going well for you in general. We're soon to celebrate our 10th birthday! I've been mostly good, I've been focusing on other things for a while, but now I'm interested to work on this again Yeah, I started working on this project in March 2017 >BTW, having looked into it, I think you could use resin printing to get much of the detail & sturdiness needed for the shell of your dear robot fairy. Have you thought of this? Resin printing releases a lot of toxic fumes and I don't have a resin printer, I think they might cost a lot, maybe I can access one at a fab lab I mostly use cartesian 3d printers This project has been on the shelf for a while so it'll take me a bit of time to get back into it properly, right now I'm mostly throwing around ideas and considering things

>>45597 Glorious return! I was wondering where you went. I bet those UFO disclosures fascinated you. These ideas look good. Drone tech has definitely improved, so you should have more luck with this project.

>>45597 >but now I'm interested to work on this again >right now I'm mostly throwing around ideas and considering things Well please keep us all up to date with things about her. Cheers. >>45598 >Drone tech has definitely improved, so you should have more luck with this project. Definitely true, and I predict that trend will continue indefinitely for now.

I'm rethinking the project. The form factor will remain the same, I like the challenge of the small size, but the structure may change considerably I'm now looking at "Pinch" for a potential brain of the robot https://moddo.io/pages/pinch As time goes on I may update my designs and components Not much is decided yet, I'll buy and experiment with parts and see if I can fit them in I haven't gotten my 3d printer working yet after moving, I just have to connect it up, clean it and level the bed (and get the right color filament up) First I'll work on modeling new parts for 3d printing There's a lot of small electronics parts I'd like to experiment with, I'll wait a bit and explore parts online before buying any, I'll likely have some by next month

I'm setting up Blender for 3d printing: https://www.youtube.com/watch?v=ZI49VIcISaw https://extensions.blender.org/add-ons/print3d-toolbox/ I'm also using a mmd addon to load mmd models of Lapis into blender, like I did before

>>45605 Excellent information, thanks Hik. Cheers.

I'm now looking at ESP32-C3 board as a potential brain of the robot I was looking at the regular board at first and it was a bit too big, but then I found out about this CodeCell board: https://microbots.io/products/codecell?variant=49714638782797 It fits within 2 cm, so it may be good enough (at least to begin with) This enables wifi and bluetooth compatibility, so I could potentially send data to the robot and receive data from it, also its arduino code compatible so it be easier to work with It also has some other potentially useful features

>>45621 That looks pretty remarkable. If you can manage GPIO with it for actuators control, you'll be set. Good luck, Hik.

>>45624 Yeah, it only has 6-8 GPIO, but I might be able to use those to interface with another tiny thingy to get more out of it, we'll see I've ordered a CodeCell-C3 and will experiment with it when it gets to me

>>45625 You can do it, Anon! Please let us all know how it goes for you. BTW, you've convinced me: I'm setting aside some resources to dabble with this remarkable platform as well. Cheers.

I found out there's FPGA microSD cards now https://docs.signaloid.io/docs/compute-modules/c0-series/c0-microsd/ Not sure what its good for, but I'm looking at anything that fits the tiny form factor of my mini robot project

>>45634 >I found out there's FPGA microSD cards now What a time to be alive!

I misplaced the box from before (that I put the parts in up until I stopped working on it last time) Its not that big of a loss, I might find it again at some point Now I'm starting fresh with a new parts box and will be focusing more on this project, making actual progress with it. I call the box the "Lapis box" This new one has somewhat customizable compartments, I could 3d print dividers to customize it even more I'm going to clean the 3d printer, level its bed and start 3d printing again. I'm going to buy a skin colored filament and with it do a simple exoskeleton kinda structure to begin with, its like in art, one usually starts out crude and then refines it more and more as time goes on I'm dividing the project parts into 3 sections -1st section: Structure -2nd section: Electronics -3rd section: Decoration My approach to this has been refined considerably, I know what to focus on and will keep exploring and experimenting so as to best proceed I'm going to see if I can use a tiny multiplexer with the CodeCell-C3 in order to get more GPIO, as 6 or 8 GPIO is not quite enough for moving a full on humanoid robot, I'm still gathering information on which multiplexer (if any) may be suitable

>>45643 Sounds good. Good luck, Hik! We'll all be waiting for updates on your progress. Cheers, Anon.

Here's the light skin color filament that I picked up today, its just standard PLA filament I will likely buy a new and better 3d printer next year Until then I'll only use PLA filaments I got my current 3d printer in 2022, its an Ender 3 Pro (Chinese) At first my mini Lapis robot will be more doll like, with hard plastic exterior Later on I aim to make the mini Lapis robot being more life like, with TPU and later maybe something else that resembles skin fat and muscle more or maybe I'll make artificial ones that be very life like, but that's more the long term goal I just found the small tools for the 3d printer so I'm ready to get started on working with it

>>45645 That filament should look nice, Anon. And "start smol, grow big" is a motto here! Don't be in too big of a rush to try and reach your overall end goal. Just work methodically at what is in front of you now, perfect that, rethink & replan, then move on to the next step. Lather, rinse, repeat. Simple as. Good luck Hik!

I found the old Lapis box again Some of the parts might be useful I'll mostly use it for reference The MSP430 is also there and works but it may be kinda outdated by now I'm glad I found everything I wished to find today >>45646 Thanks for the support, I'll do as I best can with what's available and I'll upgrade as new parts become available I've always had an interest in robots ever since I first got to know what a robot was Eventually it may become something more than a robot I can also use what I've learned in this project in other projects later I meant to post this earlier today but the site was down, let me know if there's a bunker or a backup site one can use in such cases In 2022, I had an incident which convinced me to stop working on this project, so I shelved it for a few years, I kept the parts I had in the old Lapis box just in case I'd see fit to work on it again Now I see great promise in this project, it provides adequate challenge and I might pioneer some new things working on it

>>45647 >Thanks for the support You're very welcome, Hik! I'm excited to see you picking your project back up again. >I meant to post this earlier today but the site was down, let me know if there's a bunker or a backup site one can use in such cases https://trashchan.xyz/robowaifu/index.html That's our primary bunker board site. In the event that should be down as well, we also have a /shelter/ thread: https://junkuchan.org/shelter/thread/4987.html#4987 Please make note of them. >Now I see great promise in this project, it provides adequate challenge and I might pioneer some new things working on it If you can successfully put such micro-humanoid robotics into the hand of the common DIY'r, then you will have done just that! My own Sumomo-chan project (she's the friendly little pocket-sized Persocom from Chobits) would likely benefit directly thru such breakthroughs. Godspeed Anon! Cheers. :)

Today I got the CodeCell-C3 Earlier this month I designed a custom Lapis mug and ordered it online, it was made for me and I got it around the middle of the month Here's the stuff I've got so far this month in one pic I've just finished cleaning the 3d printer

>>45649 >Lapis mug It looks lovely, Anon! Really. Great color scheme as well as a beautiful dear Lapis on it. >I've just finished cleaning the 3d printer Excellent. I understand lots of Anons like using Fusion360 for making original designs. Good luck, Hik! We're all rooting for you. Cheers. :)