How to make: an Exo-Skeleton Arm for $100
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- Опубликовано: 7 янв 2025
- How to make an Exo skeleton arm in 2 days with only $100.
We are developing a relatively cheap, simple and yet powerful exo-arm design that will allow for a easy usage, which is especially important for elderly and other people who need this kind of help in everyday life.
If you are interested in following the development and updates, there is a project page: hackaday.io/pr...
This is also a project entry for Hackaday 2017 prize.
I have created a Patreon page, so if you are interested in supporting my vision, check it out!
www.patreon.com/texworkshop
This is a great build and this helmet me created an armored arm that can lift around 50-60 pound and are you able to build a holographic interface helmet
I have no idea what I said
Don't worry buddy. I'm already working on the helmet (and a suit).
Tex Workshop you should apply to hack smith industries they have a RUclips channel if you want to see what they do
Bro .try distributing the lifting weights all over the body by attaching an real backbone like structure ..that actually distributes the load and stress and reduces the load on your arm and makes the center of gravity more stable . Tell about ur though
Nice work!
Thanks! ☺️
Hacksmith FTW
HACKSMITH FOR LIFE
Your the hacksmith
Lol hacksmit
People don't understand the purpose behind this arm. It can lift max around 30 pounds. And not because I made it so. There are purely mechanical and electrical limitations when it comes to price. And since it was made for $100, you can't really expect it will lift a car. The point of this arm is that it will hopefuly someday help those people who need it. Like elderly and disabled. It is the first prototype, so it's still a long way.
I can't stress this enough since some of you are disappointed when I don't lift a car. So please keep that in mind when viewing this video. Thanks! :)
nice job one day it will help the needy...
Myb they don't understand what a prototype means.. Keep up the good work mate
I was just wondering.. When it comes to lifting extra weight that you'd physically be able to carry am I right in saying that all that weight would be transferred to your physical legs? I don't mean it as a criticism or anything I'm just curious if that's how it works. Is that part of the reason why it can't lift a lot of weight?
a full exosuit is required to be used by the elerderly since making their faragile bones bear the weight is impractical, besides you can use a capacitor bank in order to condense enough current within the circuit as to bear a more powerful motor without popping the battery
@@arransykes9465 the main limitation is the weak linear actuator and it can be solved by using a more powerful motor in combination with a capacitor bank or many batteries in parrallel or an engine unit or a hho converter in order to eliminate the power bottleneck since batteries are bad at supplying a lot of amperage at once due to internal impedence.
another flaw within the concept itself is that all weight is transfered onto the biological structure of the users body, this leads to damage of the skeletal and muscular system after an overload of mechanical stress has occured, this can be resolved by developing a full external skeleton which can provide additional support and mechanical stress dampening.
the final flaw of the system is that it makes you weaker by subsidising your biological strengh with its mechanical strengh, this can be resolved by use of a myoelectric sensor's output in order to slightly delay the mechanical actuator as to integrate one's strengh into the system so that in effect you lift with the contraption instead of initiating the machines lift sequence and having it lift your body with in adition to the extra weight.
the use of a stepper motor with steel rope instead of a linear actuator make the build more lightweight and more compact meanwhile gaining power and allowing for a dual or triple axis freedom of movement instead of the shoddy single axis movement capability offered by the build, anyone can make an exoarm but only a few are capable of making a good exoarm.
This needs some iron man theme music.
Fiction, hope and dreams. Hope you newer stop learning. But this is entry level. Hope to see your work in ten years from now. Good luck.
the sound of the progress is just so relaxing
You’d think that sci-fi tech like this would be commonplace and there’d already be superhumans running around if one arm cost 100 dollars
dnt care about other bad comments bro..!i really like this
what do you consider to be a bad comment? one may argue that my comments are bad since they mention many flaws of the build, one may also argue that your comment is bad since it is so vague.
Wow, amazing. I thought it'd be fake until I saw you lifting the cycle with 0 efforts
Hey maybe you should build a back support exoskeleton! That would be probably easier and would make for a short video!
+Atlas Tobin how would that work? I mean, what would be the applications for this?
Tex, you probably noticed when lifting - your forearm isn't doing so much work, your bicep is pretty idle, but your shoulder is taking the full load. This isn't really ideal, because your muscles have evolved to work in unison and combined with your nervous system to communicate where the weak spots are (pain) and that you should exert much less energy in those areas. It's a warning system designed not to overstretch or tear your muscles and tendons, which range from annoying to devastating injuries.
Having the full load on your shoulder only puts a stress on it that it isn't designed for. What would be ideal is to transfer that load fully onto an exoskeleton, rather than in more specific parts of your body. To put this most simply, a robust leg and torso configuration is needed to really make a practical lifting device. The load is better transferred through the frame and into the ground, putting little-to-no stress on one's body.
Our bodies are not a conglomeration of isolated areas - it all functions as one homogeneous and self sufficient agent. To improve on the human body - which, in and of itself, is a very impressive machine - it has to expand using the full function. In other words, *_never skip leg day_*.
Tex Workshop moo
Great work!
I would love to see another with electric rod type actuators!
I'm working on a full suit, but am having difficulty incorporating the neural network ai.
any upddates?
Any updates?
Any updates?
This will be perfect! Thanks for sharing mate.
good luck! i'm interested in transforming my arm to a good percent dynamic!
Time to go to the gym and show off my gains
Hey! I have a question. How to increase max weight lift in exoskeleton? You need to add powerful batteries, stronger construction or what?
add some sort of myoelectric sensor to this and use extruded stock instead of flatbar there where the stress is applied to it horizontaly, also a full exosuit can be connected together with a frame instead of being worn on the shoulders.
fantastic! simply wonderful ,im also building an exoskeleton ,with torque motors ,it has motor speed controllers as controls for right now but in the future i will implement l298n modules and arduino into the mix xD im amazed by ur exo great work keep it up
Cody Graham thanks Cody! Make sure you post the video when you complete it. Would love to see how you made it :)
might make a praetor suit to fight off the hordes of hell on judgement day
You think you could get that windshield wiper motor to be compatible with a myoware EMG sensor?
Thank you for this empowering video.
The fact it cost so little is great it means it will be affordable I was looking up the price of them (for a friend of mine)and the cheapest is £5000 from open bionics I hope you do well with this (sorry if my grammar is bad )
Excellent video! I really appreciate the time you've spent and put in to develop this piece of tech. Out of curiosity, I have a few questions I'd like to ask in relation to this particular exoskeleton arm (and any exoskeleton arm in general):
1) How much does the entire assembly weigh?
2) What is the maximum amount of weight you can move (1 feet per second) using the exoskeleton arm in addition to the amount of weight you can already move without any assistance?
3) What is the maximum output of current, voltage and watts the main electric motor for the exoskeleton arm uses?
4) What is the final component to receive the power transmitted from the electric motor before movement of the exoskeleton arm is possible?
5) How is the power from the electric motor transmitted to the final component of the system before the movement of the exoskeleton arm is possible?
6) How does the final component to receive power from the electric motor enables the exoskeleton arm to move? What does that component do to enable the exoskeleton arm to move?
Thanks in advanced for the answers!
Hello! Thanks! I'll try to answer the questions the best I can:
1) Around 2kg, honestly I have never weighted it.
2) Problem is back and shoulder support, which this exoarm does not have. If there was some way to transfer all the weight to your back, the only thing stopping you would be the motor. And the motor can lift around 10kg or more.
3) When in stall torque, the motor uses around 18A. Since this is a car motor, it runs on 12V.
4) I don't understand this question.
5) The same as 4.
6) Check update for this exoarm. You can find it on my channel. I added a strain gauge that measures the mass / torque on the forearm, and with this data moves the exoarm's motor.
I hope this helps, if you have further questions please ask :)
I'll clarify the questions you didn't understand:
4) In a car, the final component to receive power from an engine / motor before the vehicle can move is the wheels. Before that, the power is transmitted to the drive shaft / final drive unit which is the second last component before the wheel to receive the power produced by the engine / motor. Likewise, what is the final component (or final few components) to receive power from the motor of the exoskeleton arm before movement of the arm is possible?
5) In a car, power produced by the engine / motor is transmitted through shafts and gears to the wheels (the final component to receive power). Likewise, how is the power transmitted to the final component (whatever it may be) in the exoskeleton arm (both the one you made and in general)?
I'm just trying to research and learn more about how exoskeleton and electric motors work
Could someone please tell me; where does the weight go when using an exoskeleton arm like this? Surely when lifting an object the weight has to get dispersed somewhere? Since this doesn't have a leg support the person surely must still take the weight?
pretty sure i already answered that a few minutes ago
If i still cant move my arm after surgery, im completely building this.
Does it support the work done by user's arm and ehnances it, or does it "work" on its own and owner doesn't actually do any lifting?
you may allow your arm to be forced by the machine or you may go along with it, however i do not recommend the latter since it is like pushing in an already closing cd tray, which leads to damage and confusion of the computer if it is set to read the piston state.
what motor and battery do you use can u tell me its specifications
Does the weight affect the leg... I mean to say if you're lifting a particular weight it will also impact on you leg due to gravity so it shows the weight on your leg
Sorry for bad english.😢
I feel like people never think about what might happen if the motor starts spinning quickly in the opposite direction. It's highly unlikely but man just one little bug or power surge and your arm would get bent backward.
of course, it is only spin in 180 degree
12 yr old me:hmmm i should make that my brain is pretty much mature
Having just gloves or the palm is necessary? Because if the motor can lift 60kg as a example... The hand will compress due to heavy weight please anyone reply... I also want to make this project as my final project...
This is better than the one I made out of epoxy XD
Dude that is freaking awesome ! Good job!
Thanks! It means a lot to hear that you guys like it!
Is their a way to improve the strength of the arm, well sticking to it's current configuration/level of accessibility?
Add rocket boosters
@@ssstjepannn lol
What would you need to do to make it lift say 100lbs?
Where do people normally get prices of metal like this?
What is an ideal motor to use for the joints? And should it have torque or speed?
torque!
a stepper or bldc motor
torque is strengh, speed is speed
a gear box may be required, also please remember to check if your circuit can handle the amperage which is wattage/voltage
try using steel rope since it is cheaper and lighter and more flexible than a piston or direct drive.
the use of a myoelectric sensor in combination with a delay function results in the integration of the users biological strengh with the machine's.
also remember to use an arduino nano or pro micro, the uno is reserved for prototyping only since it is more expensive.
Now I'm gonna add an axe to the hand and punch trees like in minecraft
You sir are a visionary and genius
SamuelSMG thank you! I appreciate this! :)
Code and diagram for the two push botton
do you have any templates cuz I would really like to make one for myself
Can u use a better parts list I can’t find half of this shit with the current one :(
What is the big black motor kind of thing you are using ...... The one for which you were measuring the size for drills?
+TECHNOBOTS - BOT TUTORIALS that's the windshield wiper motor from a car. If I understand what you meant
The coffee sip was a perfect addiction!
I calculated some of the items up and It hit 150$ and have most of the items already!
what is the rating of your wiper motor? where did u get it?
just use a stepper or bldc
This can be done for a person with muscular atrophy in the arm?
Much respect, my dude. Did you incorporate any kind of mechanical method to limit rotation of that wiper motor? I'd be afraid that thing would rip my forearm off in elbow hyperextension if the circuit messes up.
Jay A hey thanks! :) Yea I did. It's not that obvious, but the aluminum on the elbow joint prevents that.
Hello nice to meet.
I was impressed by what you made.
There are a couple of things I would like to ask. I am glad if you can answer.
First of all, how many kilograms can you lift?
Second, I think that you use a motor. What kind of motor do you use?
Third, what kind of principle do you lift?
The fourth part, part of the arm is surprisingly not made part of the waist and legs?
Fifth,can you show the design etc.?
Thank you for reading the long sentence. Please excuse me.
So how do you build it ?
How much weight can it help lift?
Nice video bro, i am interested to do something like this,so I want to know what is the model of the motor ??
if i use it for my school project, will I get sued for using this arm's tech to develop a full suit ;-;, I am 15 and I have been researching this for 3 years now
What level do i have to be to craft this?
Ok so it does no good unless the weight is supported.no"?
Can u plz provide all the dimentions of links and correct name of all electronic parts as well ?? I'm interested in your project & I would like to make same as my final year project.. Plz help
Kaivan Dave design one of your own
if one lacks understanding of a machine, they should not attempt to build the machine
Haters. You find out how to build a machine by trying to build it. Thus is innovation and learning. Everyone's gotta start somewhere
very impressive !!! for what u done with the limited parts... is there any plan to make one for walking?
What alloy did you use?
I’d this considered cheating in an arm wrestle
brother i'm interesting in doing same one for fyp,but require help regarding design,as there are alots of videos regarding exoskeleton,. kindly help me if u have any idea regarding design..or any thesis ????????
For $100 this is not bad.
What pins are the buttons connected to
can it be modified to be for legs?
+Matias ambiado probably yes. Knee is not that different from elbow.
i would insist that this would require a completely different design
But how much can it curl
What have you connected in circuit diagram that red colour circuit?
What is it? And I can't get the programming from the description. Sir please help me
Nice!
Had anyone else considered trying liner actuators of an exo arm
Not for insane lift power put really precise motion
Main problem is linear actuators are very slow. That would be aggravating to have to wait 20 seconds to lift a cup of water. Whereas this actuator that gives a torque responds quickly.
@@MCbadass7ohh i see... Thanks for the information...
I'm also making can ANYONE suggest me some PROJECTS FOR FINAL YEAR ENGINEERING PROJECT RELATED TO MECHATRONICS
Or in my opinion project based on new thing that didn't invent or trend or theories.. on. That it will be helpful for me...
Hi there. May I know how did u wire the windshield motor as mine has 5 connections?
+Darryl Ng one wire is ground. One wire is full speed, one half speed and two are some kind of switches. Take an 12V battery and just try it. Nothing bad can happen and you will figure out which wires do what.
Tex Workshop ok thanks
Is it necessary to have a strain gauge and load cell amplifier?
In the schematics where do you place the button in the breadboard thanks
It is not lifting 2 kg also. What should I do ? I think the battery is low. What do you think??
What metal did you use? And where did you buy it?
I used aluminum, and I bought it at a local hardware shop. It came in 3 meters long, so I had to cut it in pieces.
An ideal material would be a heat treated and tempered medium- or high-carbon steel. This presents much more work, and more tooling - but I would argue that it is probably stronger per weight than the aluminum. Usually, in very general terms, aluminum and steel are around the same strength per lb - that is to say, you need a lot more aluminum for the same strength. for a quick comparison, think of a car leaf spring - 2 pieces of 1.5" x .25" x 26" or so will support 1,000lbs in a trailer over tens of millions of cycles (ie, the trailer bouncing) without failure, whereas the same material in aluminum would support the load for minutes and then failing miserably. Even compensating for weight vs. strength, aluminum is so soft yet brittle that it really becomes a poor material for anything load bearing and anything that is subject to shock or potential deformation. They make good for car rims, engine blocks, general castings - but nothing at all heavy duty. It is a good material for prototyping, it is easy to work with and can support "enough". But, in the majority of cases, steel is King.
Anyways, my point is that steel means significantly smaller and stronger parts, even if the weight may increase slightly. Having a self-supporting frame, however, as I mentioned in my previous comment, kind of negates the whole weight thing anyway.
What thickness btw?
4mm :)
If it is steel what thickness would you recommend if it were used as a frame for the leg? So the tibia and femur
Can I build this in my room or do I need a large garage sort of room?
You can make it in your bathroom if you have the tools ;)
1:35 wow, i cant believe you, you lied, this costs 105$ because you didnt count the coffee!1!
smh...I'm telling my mom😤
1:02 Ya could have just filed it down but ok u can do what u want to i guess
Which metal is used here ?
Looked like stainless steel to me
so you can lift and object you can normally lift?
Can someone send me a list of the supplies
If you go in the video's description you'll see a link to the hackaday page, where you'll find everything you need :)
design your own and improve it.
In the schematics, what's the red board next to the breadboard?
What is the motor model? How much torque it delivers?
tony stark would be impressed.
Would this be a 30lb advantage, meaning if I can lift 250lbs by myself I could lift 280 lbs or is it limited to 30lbs?
Just 30
I don't believe that cost $100 to make. PS I love the hacksmith
Hi may I know which type of potential meter are you using
Hello! I'm sorry for late response. It's a hobby potentiometer. It really isn't important what type because with arduino you will always get values from 0 to 1023.
ok thanks
can u show me how to control two motors on each axis of a joystick? with arduino and l298n module xD? for ex: y axis forward and backward of motor a. and X axis forward and backward motor B, plz i rly need a code for this a help on making it for exo skeleton project
Bro what is the name of machine that use in the exoskeleton? Please tell me.
Imagine wearing it backwards
yes
No why did you say thatXD
to what pins are the 2 buttons connected?
Fantastic work, bro! When are you planning to realize the Mark 1? :D
Thanks! When I get like 1000000 EUR and a big lab :D
Tex Projects HAHAHAHA Good answer! :D
It's funny because it's true :)
Ight time to be a super hero I’m fr.
How much wileight can it lift
Te felicito por haber diseñado tan importante proyecto que le alegrara la vida a muchas personas con discapacidad. Si puedes comparte las librerías. Saludos desde Perú.
calm down Tony Stark.
Imagine building this with body armor, replicating Warhammer 40K and stopping riots and looting. You wouldn't need a weapon because people would just run from you when they realize you're a walking tank.
Bro can you send me its solidworks model
Bro you must have Left the full making video in 2-3parts..!!!for clear understanding..!!
Edge of tomorrow
never use an uno for these things, go with a micro or nano to save money and time!
Where did you get this idea because i invented one similar to "your"
where is it posted? I came up with this few years back, but as far as I remember there was nothing that influenced this idea. (no youtube video, blog post, etc..)
Looks like one i made a few years back, well it looks better haha
My friend, you need a cnc;)
Muito top esse teu projeto