5 years in the making ey?

@@bill8065 I guess so! Besides just some early concepts I haven't done much work yet on a new arm but I'm hoping to start designing in the next few months and document the progress on KZfaq

All the best maan

It is amazing all the work you did and I hope you are still working on. I have started to research more about this to try to help my young cousin which unfortunately just lost his arm in an accident. I know it is going to be hard for him to adapt but thanks to people like you there is going to be more possibilities for him and millions of people in this world. Thank you!

@@efraingutierrez9766 Thanks for your nice words. I am still working on this, there are some new videos of the new design on the channel. Best wishes to you and your cousin

Thanks so much for the kind words! It was hard finding the time. I fell behind in some of my other modules slightly but all was good in the end

Thank you very much 😊🙏

Thanks! Best of luck

You're welcome!

I need brother I am

Thank you! Let me know if there are any other similar videos you would like to see

@@MahdiDesigns I would like to see some tutorials of SolidWorks and Matlab from intermediate to expert level. Thanks

Thank you! Best of luck with your dreams

Thank you! Much appreciated

You're very welcome, it's seriously impressive work. I'm reading you thesis now, the amount of information and research you have done is extrodinary and fascinating. The amount of time you must have put into this project is very admirable. Can I ask what you are doing now? Did anything come from this project?

@@KieranMeadows Thanks so much! I put in a lot of time to this project, probably the eqivalent of full time work for about 9 months. Some students continued this work in later years to write their own thesis'. I work as a robotics/mechanical design engineer now, it's great. I actually do more advanced and robust designs now but I can't really share the details of the models I make at work. Darpa (US military) is doing amazing things with prosthetic arms. All the best man 😊🙏

Glad I could be of help, best of luck with your project!

Shall a get ur cad sketch

You're welcome, thanks for the nice words

Thank you...i'll save this video as ref for future. In case someone needs help, need new great hand. May allah (my God) give u nur(light).

Sorry mahdi, i just know that u muslim too. May allah bless u.

Thanks so much!

Thank you! I hope to contibute more to the field in the future. Best wishes

Hey whats up? Check the company OPENBIONICS, they have affordable below elbow printed prosthetics.... they are stylish and very functional. Hope it helps you!

Awesome good luck, I would recommend go for as simple as possible, it can be very time consuming!

Thanks, haha. Yeah i think I've improved at recording videos in recent times

You're welcome friend. Thank you

Thanks a lot

Hi, that is my name 😁 Thanks for the comment. I would recommend just starting small like a finger/hand, or the equivalent for your project. Then depending on how you're going for time you can build upon that. Best of luck

Thanks a lot! Unfortunately I no longer have the code, this project was quite some time ago. I suggest looking up how to control servo motors with arduino

@@MahdiDesigns Great, thanks. So did you wrote the whole code by yourself or did you implemented the one which I can find on Google?

@@sahiljagtap1958 I wrote it myself, it's really not that complex. Just very basic servo motor control

@@MahdiDesigns oh ok, thanks for the suggestion!

Thanks! Mechatronics would be best in my opinion. Good luck!

hello mahdi thank you i find in your link

Hi Solidworks Files now available for download. Please see latest video

Thank you! It has been quite a long time since I have used mplab or a pic micro, so I can't remember too many details. I would suggest starting small, look up tutorials and write a small segment of code, test it, make sure it works then build up from there. Good luck!

I'm not sure I fully understand but many muscles work together to hold a pen for example. The sensation of touch/pressure provides feedback to allow the brain to make micro adjustments. A prosthetic hand needs many degrees of freedom and some form of feedback to the user to manipulate objects in a similar manner

Can I get a cad sketch

Yes it's my original design. I did research other designs snd projects first though. You can read details in my thesis on my website, link in video description.

that clears it up thank u :D

You can use EMG inside the device or an external myo arm band. I guess that's the plan here.

Without an underarm would be more complex. Essentially the more that is missing the more complicated the prosthetic arm replacement is in terms of design & control. This model was just a prototype, it wasn't developed enough to be used in the real world. However, an amputee in theory could still control this prototype using electrical pads on nearby muscles. The United States Military does advanced research on prosthetic arms. Search DARPA Prosthesis. In the future the technology will continue to get better and hopefully become more affordable for the people that need it =)

Wow that's amazing! Great work. Sure that would be awesome. If you like I can also upload your files for others to access and learn from. My email address is mahdihussein.91@gmail.com

Hi, thanks! I would suggest looking up arduino tutorials on how to control servo motors, its not too difficult. You can also look up tutorials on reading an arduino analogue to digital converter. With those two things you can read the myo sensors and use that to command the motors. Machine learning isn't necessary to start with. DOF means how many different movements you have, you can always use more myo sensors to control the additional degrees. Best of luck!

@@MahdiDesigns thank you so much for your reply, very useful!! Also did you consider the biocompatibility of the materials you used, ie mechanical properties of the materials you used? If not, how would you have evaluated the biocompatibility of the materials used and the over all prosthetic device? ☺️

Mahdi Hussein ill have to look into that, thankyou!

Hi Solidworks Files now available for download. Please see latest video

Yes bushings at the finger joints would be an efficient and compact solution!

Hi, I didn't use any motion capture sensor. I used EMG muscle sensors to control the movement

Thank you sir

Just cut sections from a spool of 3D printer material

Nice, that would be cool. You might want to smooth the EMG signals, either with a circuit or maybe just reading say 10 times and averaging. The raw signals can be noisy. Also, with low end hobby servo motors you can't really control the torque. To the best of my understanding you can only control their position and they will use their max torque to get to that position. With DC motors and your own controller you can however control the torque, so you could use the EMG signals to proportionally adjust the torque. I may do something similiar to this on the new project I'm working on as I'm using micro DC motors with motor control driver boards (motor drivers from Pololu). Hope this helps

@@MahdiDesigns thank you very much

Small holes in the horns, loop the rope through and tie knot

try reducing gain

Mahdi Hussein ok thank you that helps alot

Just 4 motions using two emg sensors if I remember correctly. The fingers were all controlled together

For degrees of freedom, meaning mobility, he used the elbow as one, the wrist as another point, and then an additional one for each finger.

@@eduardochavez8820 very much false read the thesis for the correct answer

Good question. For this model I lifted about 2kg (it probably could have handled a bit more). The limititation comes from most the components being weak 3D printed plastic. I also didn't develop a connection to an amputee which is important for weight dostribution across their stump/remaining limb

I believe it was just a press fit onto the star shaped pinion, maybe also some glue or epoxy. It was just a prototype design

Hi, that's awesome, I would love to see a photo. I looped the "tendons" through the tip of each finger. There are two small holes which allow you to loop through. Best to loop multiple times so it doesn't slip, you could even use a drop of super glue to really make sure it doesn't slip

That's great. This is design engineering work. You could start learning CAD modelling (Fusion360 is a free program) and also electronics and software (arduino is a good place to start). Perhaps with your medical knowledge you could find some engineers/designers and collaborate

Hi Solidworks Files now available for download. Please see latest video

Hi, sorry I don't, I suggest learn about Arduino

Can you access them through the link in the description?

See the links in the video description

Hi see the link in the video description

Hi Solidworks Files now available for download. Please see latest video

Thank you! Sorry I no longer have the code. I would suggest researching how to control servo motors with Arduino

I would start by learning a free CAD software like fusion 360. Arduino is also great for learning programming

Mdesigns.space

All parts that you have 3D printed were accurate??

Firstly, I was getting a crack during printing of bicep stl file. Fortunately, i solved that problem and now all the parts are accurately printed in their original form.

Hi Solidworks Files now available for download. Please see latest video