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LFG!
Now I have to make it closed loop.
OMi@ORHEX0
It was spinning a little bit faster than I thought it clean most of the lubricants from bearings :)
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OMi
903 posts
OMi
@ORHEX0
Posting about mechanical engineering, CAD design, 3D printing, computer hardware, software, and my personal projects.
California, USA เข้าร่วม Temmuz 2019
99 กำลังติดตาม1.9K ผู้ติดตาม
If anyone is interested in how this works and its purpose, I recommend watching this video
youtu.be/DxqBvurAE50?si…
YouTube
Ian Pritchard (anthro/acc)@IanPritchard
How does the EFAM work? Localized combustion of electrolytically generated H₂ and O₂ produces a rapid pressure spike for muscle actuation. The gases recombine into water almost immediately via the combustion reaction, enabling fast passive reset and cycling. The muscles remain cool to the touch, and are safe and compliant, similar to the "dry" nanomaterial-coated fiber muscles we're also building. The oxidation you see also won't be an issue with the new stainless steel electrodes being installed next.
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@akashghosh17 It work same is stand alone motor at that size and configuration but most of the performance depends on winding pattern which can be very different beast on what you want to do.
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The Dual-Core BLDC MOTOR is open source on my website now. All the CAD files and parts you need to build are also in the description. It is still unfinished, but I shared it so anyone who wants to build or wants help with design and electronics let me know if you need anything.
orhex0.com/project?id=176…
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@fishPointer Knowing this it makes more sense way they choose this name en.wikipedia.org/wiki/Palantír
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day five of increasing the complexity of this CNC’d part until sendcutsend tells me to stop
Jim Belosic (SendCutSend)@jimbelosic
ummmm…ok man, I think that’s about enough
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@ORHEX0 What is it going to cost to get these 3 parts done?
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It turned out fine but I need 3 parts out of aluminum so it aligns properly.
OMi@ORHEX0
I’m going to 3d print this with PA6-CF and see how it’s go it seems solid.
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@ORHEX0 I find that PPS-CF(annealed) is stiffer however lower yield strength and slightly lower interlayer strength.
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Day 9: I'm not sure about these colors. But I've reworked the beak and added a jaw so it now has 5cm of gripper. Rough forms still, but i think the design is complete. One thing that bothers me still is the antenna. I think it's going to collide with the neck mechanism..
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@Chris483879 Right now I’m focusing to make it work and stress test it I’ll work on efficiency later on.
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@Chris483879 The outrunner should handle 480-960W and inrunner should handle 760W combined 1700W stable but can be pushed up to 2600W for short amount time
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@JacklouisP I think for most part it’s the costs that no one want build very efficient light actuators
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Humanoids = stacked actuators. Pure and simple.
If you don't understand actuators, you don't understand robots.
Actuators are not solved: too heavy, too hot, too inefficient.
This is a mega thread on actuator design for humanoid robots, directly from the mind of @GoingBallistic5
Bookmark it for later 👇
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really wish that the design world was easier to automate so that we could have tools like this but applicable for mechanical engineering
i’ve spoken to many people who are working on automating cad and it’s like the same problems keep coming up
that being said, calling all swes to switch so hardware so that we can have this in the next solidworks update
@blackboxai pivot to Mechanical engineering plz
BLACKBOX AI@blackboxai
Watch @blackboxai turn a picture into a full Figma design in seconds using only prompts.
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@stevenuecke Most annoying part is winding stator I have to get some 19AWG copper wire 😩
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@ORHEX0 Been down that road here - interested to see how you fare with it!
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I’m going to 3d print this with PA6-CF and see how it’s go it seems solid.
OMi@ORHEX0
Almost finished, just need to order parts, and that’ll take some time.
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@TwerskyNachum I post assembly file on my website you can check it out orhex0.com
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@ORHEX0 So does your backiron have the slots for your magnets? Or those are 3D printed, and the iron fits around it?
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@TwerskyNachum Yeah technically hallbach array is better but cost and assembly is better on back iron standard array .
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@ORHEX0 Could you get better results with a hallbach array?
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@aprolixian Yes for isolation so the copper wire don’t get short and help with vibration also you can put same resin after winding
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Out-runner parts arrived
OMi@ORHEX0
Almost finished, just need to order parts, and that’ll take some time.
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