Start your free trial to Altium Designer for 15 days: https://www.altium.com/yt/jamesbruton
I’ve previously built several robot dogs which used a variety of servos and brushless motors. The most agile robot dogs are the ones with back-drivable low-ratio reducers which allows the motor to be back-driven so we get some natural spring in the legs – which can be controlled on the fly with software. So it’s time for openDog V3 – this version uses my Cycloidal Drives which I’ve developed over the last few months. I will eventually publish the CAD and code as open source when it works.
You can support me on Patreon or buy my Merchandise:
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Patreon: https://www.patreon.com/xrobots
Merchandise: https://teespring.com/stores/james-bruton
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Affiliate links – I will get some money of you use them to sign up or buy something:
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Matterhackers 3D printing supplies: http://www.matterhackers.com?aff=7500
Music for your YouTube videos: http://share.epidemicsound.com/xrobots
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Other socials:
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Instagram: https://www.instagram.com/xrobotsuk
Facebook: https://www.facebook.com/xrobotsuk/
Twitter: https://twitter.com/xrobotsuk
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CAD and Code for my projects: https://github.com/XRobots
Huge thanks to my Patrons, without whom my standard of living would drastically decline. Like, inside out-Farm Foods bag decline. Plus a very special shoutout to Lulzbot, Inc who keep me in LulzBot 3D printers and support me via Patreon.
HARDWARE/SOFTWARE
Below you can also find a lot of the typical tools, equipment and supplies used in my projects:
Filament from: https://www.3dfuel.com/
Lulzbot 3D Printers: http://bit.ly/2Sj6nil
Lincoln Electric Welder: https://bit.ly/2Rqhqos
CNC Router: https://bit.ly/2QdsNjt
Ryobi Tools: http://bit.ly/2RhArcD
Axminster Micro Lathe: http://bit.ly/2Sj6eeN
3D Printer Filament: http://bit.ly/2PdcdUu
Soldering Iron: http://bit.ly/2DrNWDR
Vectric CNC Software: http://bit.ly/2zxpZqv
Why not join my community, who are mostly made up of actual geniuses. There’s a Facebook group and everything: https://www.facebook.com/groups/287089964833488/
XROBOTS
Former toy designer, current YouTube maker and general robotics, electrical and mechanical engineer, I’m a fan of doing it yourself and innovation by trial and error. My channel is where I share some of my useful and not-so-useful inventions, designs and maker advice. Iron Man is my go-to cosplay, and 3D printing can solve most issues – broken bolts, missing parts, world hunger, you name it.
XRobots is the community around my content where you can get in touch, share tips and advice, and more build FAQs, schematics and designs are also available.
, https://i.ytimg.com/vi/yXA_KeuYpCY/hqdefault.jpg
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amazing to see you doing another doggie James!!! I'm looking to get another 3d printer (i have PrusaMk3s already) would you recommend the lulzbots? thanks julian
Will you be implementing the constant torque spring to save power?
Inspiring.
Make a flying humaniod robot ?
Bad day to choose "cycloidal drive" for the drinking game…
where can i find the source of the assemble for 3d printing? thx in adv
Genius
Wow, congratulations on reaching 1 million subscribers, I have always admired you, you are a very talented person, also grateful for your generosity, your designs are impressive
This looks amazing, but you do realize that the "open" part of opendog becomes less useful like this. There are very few people as dedicated as you to create this 🙂
Hi James, Aaron here! I work at the robotics disposal ground just Northeast of Red Rocket Truck Stop. I see your house is filling up with quite a lot of robot carcasses. You can just give us a call on your pip boy and I would be more than happy to remove that scrap for you!
Thanks!
Your work is sick, man. Massive inspiration
dear James, why is the rear legs inverted backwards? why not angled as same as front legs?
Why use gearboxes for the knee joint when you could use a gear reduction?
within the first minute this is all stuff I wish I had the freedom to develop and engineer!
Open source? Already more useful to humanity than Boston Dynamic's Atlas
The face looks more like a mirrored cat 😮
Hi James, have you ever do a video abaut you? Thanks
Genius!
You are a legend. So much effort and quality on such a compact video! Amazing! We need more youtube channels with such high level of content.
this is 3D printing at its prime. Thankyou for your big bumpy brain James
You must be SO GOOD with Fusion 360 to be able to do this much modeling in so little time!
what the hell you run them dry? no lube or anything?
Hi why u cut motor shaft
What's the Ah, C, and voltage for your drone battery?
Lemon dog
STEPHANIE GO
The work you put into this is amazing. I'm gob smacked
i suppose the next stage might be a robot that can assemble a duplicate of itself while standing at a mail collection point. It/they could manage the financial side of things by running courses in how to assemble a robot. They could have education centres like they do in remote parts of china. Might save a lot of trouble if the robots focussed on the organisational aspects
Tons of steel bearings , try ceramics , theire weight is substancial smaller . But excellent work , nice frame and general construction , good to see this open source Thanks !
Serious question. What's the cost on the BOM for this doggie?
what the dog doin
Which grease do you use for the bearings?
Super cool work man. I will say though it looks like your prints could use a little tweaking. Visually the first layer needs a bit more extrusion and then maybe adjust your layer settings. Or adding a enclosure around your printers will help with layer adhesion. The stringy-ness and rough sides is a dead giveaway that they aren't performing as well as they could be.
If weight wise the bearings are still to heavy, consider trying UHMW rod. UHMW has a great natural lubricity to it. As long as your not putting UHMW against itself it slides wonderfully. Which would be a considerable weight savings. I would say that nylon didn't work as well partly due to the fact you had one solid rod interfacing with both the upper and lower drive, which are moving opposite each other.
Bloody hell dude……
There's gotta be some sorta fun and silly Million subscriber project coming up right?
Please mentor me I'll work for it like I'm a professional roofer and a very good mechanic exc
I'm from Boston man Boston dynamics would love you
or a robot with a very bright flashing red light that can be used to stop traffic and can be controlled over the internet
what about a robot that can assemble a duplicate of itself. you might have to do away with the rubber mallet?
nice look and color for this one
boston dynamics be like "uhhhhh"
I would imagine that there's a lot of friction in between the internal large gears in the cycloidal drive. Have you thought about using large teflon washers or spacers to put in between them to reduce the friction of opposing plastic rubbing against eachother?
Sir please tell me the name of each part in description please.