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openDog V2 #7 (Patreon)

Published:
2020-09-07 08:48:01
Imported:
2026-06
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Content

Here's next week's video, early for Patrons. This one goes public on Tuesday 15th.

Pretty happy with how it's looking at the moment. I'll upload the updated CAD and code asap.

Files

Previews only

openDog V2 #7 Upgrades and Gait Improvements

The first 100 people to go to https://www.blinkist.com/jamesbruton are going to get unlimited access for 1 week to try it out. You'll also get 25% off if you want the full membership. It's time to upgrade some of the openDog parts to aluminium and put some extra bracing in. I'm also adding interpolation for the joint moves which makes things a while lot better. This project is open source and you can find the CAD & code at: https://github.com/XRobots/openDogV2 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 Amazon US: https://www.amazon.com/?tag=xrobotsuk-20 Amazon UK: https://www.amazon.co.uk/?tag=xrobotsuk-21 Amazon FR France: https://www.amazon.fr/?tag=xrobotsuk0c-21 Amazon DE Germany: https://www.amazon.de/?tag=xrobotsuk02-21 Amazon ES Spain: https://www.amazon.es/?tag=xrobotsuk07-21 Amazon IT Italy: https://www.amazon.it/?tag=xrobotsuk08-21 *************************** 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: 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.

Comments

Trevor Flowers

Nice! The smooth interpolation gives the motion a more biological feel. I can only imagine that when it's more dynamic and recovers from uneven ground that it will dip into the uncanny valley.

XRobots
>>43613245

Thanks, really happy I got this far and it works at all, I guess I need to push forward to some more advanced stuff

Neil Devonshire

All your projects are coming together very well, I like the extra support for the motors and how it's all developing in front of our eyes too. When will you be able to ask Jarvis to make you a part and paint it a different colour?

XRobots
>>43626195

I'm hoping to be able to ask my new ROS robot for simple stuff, but it'll be a while before it can do my work for me ;-)

Anonymous

it sounds a lot like a typewriter :)

Anonymous

Impressive progress! The ramp functions do smooth out the Kinematic model and prevent jerking, just like in 3D printers. I wonder if acceleration and deceleration curves will further improve it. Looking forward to future OpenDog updates! Cheers

XRobots
>>43656376

The ramp library supports S-curves and various others, so that will be an experiment.

Anonymous

Hi James, just wondering what CNC you have there - or more specifically, what would you recommend? I have a small "Woodpecker cnc 1610" that is OK, but I need something a bit larger, and ideally a better quality motor. Cheers, Mike.

Anonymous

nice progress, seems to be quite a leap

XRobots
>>43688818

It's an Avid CNC Benchtop Pro series 2'x2' - they gave it to me, but it's pretty solid and they do right up to 8'x4'

Darius Zaerin

heck yeah! this is amazing! hes running so well!! it'll be so interesting to see how the dynamic stability improves things further and how much adaptive autonomy and intelligence you can get working. hes really becoming a serious robot, like professional cutting edge level stuff, and seems like a very robust platform to develop these things. extremely impressive and just so exciting to see your progress. nice work! anyway James, i have a question please. i'm finally about to buy my first odrive. should i buy the 8192 encoder there too or is there a better value model you'd recommend? cheaper wouldn't hurt...as you know things get expensive as i add more motors down the line. but if thats the best value price/performance option then so be it, i'd get them in one go and at least save on shipping! :-)

XRobots
>>43723953

I'd star with the ODrive 8192 encoders because they are configured by default. However I'm using AMS AS5047 magnetic encoders now but that involves re-configuring the ODrive.

Zane_Khan

how far of a distance can the robot dog be away from the controller from out losing signal?

XRobots
>>43797704

I used the same radio modules in Mark Rober's bowling ball, and that was 60 feet. But I don't think I'd want to control the dog from that far away ;-)

C_N

I am consistently floored by your videos, you're doing stuff I genuinely thought impossible. Like I get that boston dynamics can make stuff like this, but that's a team of engineers with heaps of funding. That feeling is exactly why I'm a patron. Stoked to be supporting you. I do tend to skim through some of your videos just to get to the bits where the robots are moving (because wow) - I wouldn't mind if you did an occasional 'review of progress' video where you just show the demo parts, then say 'I wasn't happy with x and y so I did this', and then show the next iteration. I'd be okay paying for that, even though it's just re-edited content! Having said that, I'm still amazed at how much progress you put in each individual video as well. You're just like 'I wasn't happy with this leg mechanism, so I'll need to redesign that', and then you JUST GO AHEAD AND DO IT IN THE SAME VIDEO. Incredible. In conclusion, keep doing what you're doing.

XRobots

Thanks Cameron, I'm trying to make each video have something substantial in it these days, there will be less videos about serious robotics, but with more content in them. Lot so of other project coming as well though.