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Here's next week's video, early for Patrons. This one goes out on Tuesday 26th.

Pretty happy with how this is going so far - looks like it'll walk and have more power than V2.

Files

Previews only

openDog V3 Electronics - Preview Version

It's time to install the electronics in openDOg V3, the third version of my 3D printed, open source, robot dog. I've using six ODrive Robotics BLDC motor drivers to drive the 12 axis for the robot dog's legs. The microcontroller is a Teensy 4.1 with an MPU6050 and an NRF24L01 radio chip. Next time I'll be working through the inverse kinematics and making it walk. You can support me on Patreon or buy my Merchandise: *************************** Patreon: https://www.patreon.com/xrobots Merchandise: https://teespring.com/stores/james-bruton *************************** Affiliate links - I will get some money of you use them to sign up or buy something: *************************** Matterhackers 3D printing supplies: http://www.matterhackers.com?aff=7500 Music for your YouTube videos: http://share.epidemicsound.com/xrobots *************************** Other socials: *************************** Instagram: https://www.instagram.com/xrobotsuk Facebook: https://www.facebook.com/xrobotsuk/ Twitter: https://twitter.com/xrobotsuk *************************** 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 Bearings from: https://simplybearings.co.uk/ 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.

Comments

Anonymous

OMG - I can't believe you got punched in the face by your dog. Looked sore!! Your videos are always the highlight of my Mondays and after 6 months of watching everything... I'm actually starting to understand it!!

Anonymous

Looking fantastic, all the wires are going to make this a real job. Any idea how long before we see a video of him walking? Does it seem powerful enough to support mounting my InMoov on? ;-P

Anonymous

You do such amazing work, thank you.

XRobots

There's not much choice with the boards being separate from the encoders etc. I'm not sure it'll carry a whole InMoov body - is that 20Kg or something?

Anonymous

Really cool to see this coming together. Very nice work as always!

Neil Devonshire

Looks very neat with all the wires being internal, plus I like the lack of buttons, hopefully no one goes for the emergency stop button, can it survive a drop from standing if pressed? Looks strong enough

Anonymous

Great work that you are doing. I really hope that open dog version 3 will be the final one, so I can start building.🤓

XRobots

Yep it'll be fine ;-) The worst thing is having to pick it up and get it back on the stand with the legs all floppy though.

XRobots

It probably means getting a trolley and wheeling it back across the NEC ;-)

TV_Walkman

Looks great! So cool to see so much hardware in one elegant package. Have you considered tricking out all the wiring with ferrules? I sorta hate terminal blocks but crimping a ferrule onto stranded wire makes everything much more manageable.

TV_Walkman

Yeah, it truly seems like you can put all the time in the world into connectors. I've settled on JST-XH for signals and terminal blocks with ferrules for power because it's cheap and common, but those fancy stress-relieved connectors call to me...

XRobots

I probably need some custom PCBs for the ODrive connectors, or I could have bought the no connector version of the ODrve and soldered something else on there ;-)

TV_Walkman

You could still have some quality time desoldering! I can't stand dupont/pin header connections though because they just slip out... IDC and ribbon cable is a good solution but would still need an adapter board. Either way, I'm sure you're happy enough now that you've gotten it working. Congrats and good luck on the kinematics!

John N Nelson

I suspect openDog V2 heard you were building V3, so he kicked you. Your Dogs have attitude. Great job again. I can't wait until they have a tail to wag when they're happy.

Anonymous

Is it too greedy to ask for two Opendog videos in a row? I absolutely love this series and I can't wait to see where it goes now that the hardware is mostly functional 🙂

XRobots

I've found that series do best if they are spaced out a bit, so the next video won't be until late November I'm afraid.

Anonymous

This one is sooooo cool!!!

Steve Martin

Wow, that was a lot of work wiring that beastie up! Excellent work as always though! :D

Anonymous

Since I'm sure you're a little further ahead than the series itself, Do you have any idea on a timescale for rolling out BOM info in any capacity? I appreciate many things might not be set in stone yet! I'm just trying to get an idea since I'm looking for a 2022 build project.... :)

XRobots

It's in progress and I'm working on making it walk right now, so it shouldn't be too long.