Shiney new parts for my High Tech Prosthetic Hand
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- Опубліковано 4 гру 2023
- Pa 12 is not the durable material that I thought it was. after a couple of months of use. parts just seem to be falling apart. so ive started to machine replacement parts out of aluminum.
Also, my new parts should be arriving from pcbway in about a week or so. Yay! - Наука та технологія
So I’ve been watching your videos every since my hand got messed up. Not comparable to yours I still have all my digits but my middle finger no longer works the same lol. Always wondering if there’s a way to adapt your design to work as a sorta exo assist muscle for closing🤔 Anyways good progress I believe this is the future of functional prosthetics.
That is a cool idea. I think that maybe something with the ring finger, since they usually move together, would do, than you could keep your hands mostly free by linking only the fingers
maybe something like Knick's 3d printed prosthetic finger v3.5 just search it in youtube, but instead of an actual finger. use rings that attach to each segment of the finger?
@streetlegalbuilds7644 Maybe you find something usefull for you're hand issue / finger i morely like Ian Davis his work because its mechanic + gears pivot points chains the whole shebang its just fuctional art work for his personal life of course but its great to see you dont need run prosthetics or power batterys. i enjoy seeing him thinker around and make improvements its like a adventure. dont know if i ever gone lose a finger or a piece of me but i would rather have something that Ian Davis made or a thing maded in his honour its true craftmanship.
Take a look at naked prosthetics products
might be a little radical, but maybe cuting it off and finding a prosthetic is easier than an exo assist muscle thing?
This project continues to be extremely inspiring and revolutionary. Love you work, thanks for sharing.
I lost the index finger on my dominant hand about 5 years ago -- kinda just ignored it til I stopped thinking about it. Your videos are very inspiring, thanks for sharing. Great work!!
Man, you sound heated haha Progress isnt always in the form of success. We learn and improve that in itself is progress. I enjoy watching the journey regardless.
I still have all my parts thankfully, but if ever I lose one or more, you're *the* man!
Thank you for sharing everything you do. 👍
It's so exciting to see you doing shop work with your prosthetic. ❤
I love the machining footage in this video! It's interesting to see how you turn raw chunks of material into a complete prosthetic.
Fantastic work
I had a splinter in my finger yesterday
Thats very nice jason
I'm sure Ian can machine away the finger so the splinter won't be damaged.
@@kstogieWE CAN REBUILD HIM!!!
STRONGER,
BETTER,
FASTER,
MORE HANDSOME!!!!
HE HAS....
THE MULTIBILLION DOLLAR FINGER (minus the splinter)
So sorry for your loss dude. Where's your patreon?
Keep up the amazing and inspirational work
Wow, you've gotten way better at speaking directly to camera, no script. Good job. Keep up the good work.
Really fascinating stuff man. Always enjoy your videos
I think part of the frustration is that 3D printed parts are not a drop in replacement for machined parts. They have different properties, advantages, and disadvantages. To fully take advantage of 3D printed parts I think a ground up redesign would be necessary. I think a sort of socket joint might work better in place of pin joints. Of course, this is just my uninformed musings and I've not done anything to test of verify these theories. Keep doing what you are dong Ian! You are doing great work!
fantastic work!
Ian I feel for your set backs and inventing something sure has a lot of set backs, but your work is truly to incredible to be stoped
the cyberpunk universe is around the corner
man, I wish I had gotten into machining in high school. I'd love to be making a living doing the work you do.
I really hope that someday this project can get to a point where extremely functional, and hopefully not unaffordable, prosthetics are available for anybody that needs them. I have an aquaintance that lost most of his right hand a couple years ago and insurrance is doing absolutely nothing to help him. I put him in contact with a freind of mine at one point and they were working on making a 3d printed prosthetic but because of the shape of his residual hand the plastic kept getting thinner and thinner and eventually just didn't work. He was so excited that he might be able to ride his motorcycle again and it just didn't work out and I feel really bad that he ended up disappointed. It'd be really awesome if at some point he could actually get that functionality back again.
Fabulous work again!
I would love to see just series of how you use your cyber hand doing various different things.
I designed an MJF Pa12 harness anchor for my son's body powered arm. I was sent three and there was quite a lot of variation. Two of them could be snapped with my bare fingers and one of them is seemingly indestructible. I cannot break it and its been in use for 5 months. The one that didnt break came from Advanced 3D in Ohio. The two that broke came from 3DPrint UK - exact same files. Shot peened and dyed black.
Great video as always. Thanks
I had to slow down my prints to get optimal strength 100mm/s on my Bambu X1C was the sweet spot for some technical materials.
Very impressive
I wonder if your design ever will be used as official prosthetic and i really hope so cuz its cool and practical, if it will i hope its not gonna be expensive so people with less money have a opportunity to get a good prosthetic without paying all their lifesavings…
The superhero has returned
I would suggest checking your tuning on your printer, and check for tips to improve layer adhesion for that filament, including any post processing 👍
Hey Ian. A better material would be a Polycarbonate CPE. High tensile strength, easy to print. Not prone to nylon creep, and not nearly as brittle over time.
On the low-end I'd be curious how PETG performs for your usage, on the high-end PEEK or PEKK. Nylon is extremely hygroscopic, PLA also seems to break after getting bent to induce fractures, then given time to absorb water.
As another possible idea, maybe a continuous CF type print would hold itself together a little bit, but that's putting a lot of faith on the fibers to do better, in practice it might even break faster due to the extreme porosity from the fibers letting water penetrate.
Best of luck finding the ideal printable materials. Another idea is conformal-coating.. (nail-polish?) The PA12 to lock it to the current humidity level, so it can't cycle as much.
It made me remember of Raiden from mtg rising, and Snake from metal gear 5
if I ever lose my hand, I know who to find..
I'm curious if CFPETG would work for your application. I find it easier to print than the nylon stuff, has great layer adhesion, and a nice middle ground between rigidity and flex. It's a little less susceptible to moisture issues than PA, but you still want to dry the crap out of it for best results. Also the bambu CFPETG isn't as good as the stuff I get from 3Dprintingcanada.
What if you made a finger that could magnetize a screwdriver bit to the tip of the finger and maybe there's a little box on the hand for the other bits, that would be neat, like a multitool hand
Were any activities enough to have caused a flesh hand injury? That would make some sense, at least to me.
Have you sought out any titanium 3D printing for the distal parts or are you focused on exploring feasible polymer options?
You should give MJF a try, not something you can do at home, but seriously strong.
The original parts were mfj pa12 from jlcpcb. They did a great job on the printing, it just seems that the material just doesn't have that great of a lifespan with my usage scenario.
Metal stuff is great
Still waiting on the chainsaw adapter version for the zombie apocalypse. I advise an auto-shutoff feature in case you accidentally shove your hand in your pocket. Otherwise should be epic.
That project was almost 3 years ago check it out...ua-cam.com/video/Lrpg820LuGE/v-deo.html
I wonder if SLS 3D printing would would work better then plastic filament 3D printing?
I suspect the 3d printing process is messing with the material properties. If the layers aren't as strong as the raw material, they'll fail at far lower stresses.
The original parts were printed with multi fusion jet by jlcpcb. They were great in the beginning, but after a while became super brittle.
Doesn't how you store the filament affect the quality of the end product ???. Mark.
It can, but these parts were mfj pa12 from jlcpcb. They looked great, just the lifespan in a real world scenario wasn't what it needed to be.
Try SLS or MJF printed parts, PA12 with 2 or 3 mm wall thickness in sls wont break that easily. If u were mentioning FDM as plastic manufacturerimg method, you should definitely try it out.
Thanks these parts were printed by jlcpcb using their mfj setup. They nooked great, but evidently, my use case is too much for that material
what type of failures did you have in the nylon? cracking?
Cracking, fractures, and just plain shattering. For the first while the material seemed to have some elasticity to it. But as of late, all of the mfj pa12 parts have become very brittle.
Yeah I don't know about you but the relative humidity where i live is always very high. So I dessicate and dry box everything now. But the problem I have been having with nylons is similar. I finally tracked it down to the slicing profiles overcooling the parts in part due to the use of support material. I wish I had the time right now to offer helping you tune a profile or something similar to attempt to solve the issue.
Is titanium out of the question because of the milling?
More the added cost. It still might be necessary to make the p1 out of Titanium for the added strength over the AlSiMg that I'm currently using. Once I get some real time on the v4, I'll know for sure.
@@missingpartsclubNow I understand; thank you! It is an expensive material, that is for sure, but the benefits are there.
This may be utterly idiotic, but have you ever considered machining some of the parts out of antler or bone? Just watching my pooch gnaw away makes me wonder if it is a good combination of toughness and hardness. Also seems to be pretty good strength to weight ratio.
Boink and boop
Philadelphia
maybe it's not the Pa 12, and instead that it has made you too powerful
Can u do a pullup
ua-cam.com/video/sge-E5XlTl0/v-deo.html
#670-✅👍
🎯🧐😉😏✌️
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What about forged carbon fiber?