I love Aaed. Not only are the youtube video excellently produced and well researched, the website is a mine of information.
This is spectacular as a reference, which youtube isn't
CARA 2.0 – “I Built a Better Robot Dog”
11–20 of 72 posts
Re: CARA 2.0 – “I Built a Better Robot Dog”
#12[dead]
Re: CARA 2.0 – “I Built a Better Robot Dog”
#133 DOF per leg, so it needs 12 motors and controllers. Getting that under $1000 is nice. Here's the US$18 motor: [1] Those things are getting really cheap. He did have to rewind it, though, for more turns with thinner wire. The manufacturer mentions that you can order with "custom Kv", which means you might be able to get a different winding from the factory if you order a reasonable quantity. Especially if you tell t…
Could I pursuade you to expand on "Repurposed drone technology has done wonders for legged robots." ? Thanks!
Look at the original video/article, they used drone motors for the robot dog, by reusing the rotor/stator and rewinding the coils manually.
Re: CARA 2.0 – “I Built a Better Robot Dog”
#14[flagged]
Re: CARA 2.0 – “I Built a Better Robot Dog”
#15Seeing stuff like this, I am wondering why the hell I am doing software. This is much cooler than CRUD for DB data nth time.
Hardware can be quite expensive and time-consuming, instead of just writing code (free) and running a command to deploy (quick) you have to get hold of good motors (expensive) and design and manufacture parts (slow)
Re: CARA 2.0 – “I Built a Better Robot Dog”
#16Awesome video. It's interesting, informative, and entertaining.
Founders I talk to that are doing hardware, broadly speaking, say it's a competitive advantage as it's not as crowded. Content like Aaed's will hopefully nudge more people into it.
Re: CARA 2.0 – “I Built a Better Robot Dog”
#173 DOF per leg, so it needs 12 motors and controllers. Getting that under $1000 is nice. Here's the US$18 motor: [1] Those things are getting really cheap. He did have to rewind it, though, for more turns with thinner wire. The manufacturer mentions that you can order with "custom Kv", which means you might be able to get a different winding from the factory if you order a reasonable quantity. Especially if you tell t…
Could I pursuade you to expand on "Repurposed drone technology has done wonders for legged robots." ? Thanks!
For legged, you want high torque and backdriveability (for shock absorption).
Agricultural drone motors like the eaglepower 8308 are ideal.
They’re cost effective, (~$80 from aliexpress) & you can pair them with a 3d printed cycloidal drive to fulfill both requirements.
Industry actuators are an order of magnitude more expensive than this.
Extra: If you go down this path, you’ll need a driver. The Xdrive is frequently recommended, but there’s a clone that’s significantly cheaper: https://makerbase3d.com/product/makerbase-xdrive-mini-high-p...
Re: CARA 2.0 – “I Built a Better Robot Dog”
#18Seeing stuff like this, I am wondering why the hell I am doing software. This is much cooler than CRUD for DB data nth time.
Hardware can be quite expensive and time-consuming, instead of just writing code (free) and running a command to deploy (quick) you have to get hold of good motors (expensive) and design and manufacture parts (slow)
You do not have to convince me! I already love it!
Re: CARA 2.0 – “I Built a Better Robot Dog”
#19Earlier quoted context omitted.
Could I pursuade you to expand on "Repurposed drone technology has done wonders for legged robots." ? Thanks!
For legged, you want high torque and backdriveability (for shock absorption). Agricultural drone motors like the eaglepower 8308 are ideal. They’re cost effective, (~$80 from aliexpress) & you can pair them with a 3d printed cycloidal drive to fulfill both requirements. Industry actuators are an order of magnitude more expensive than this. Extra: If you go down this path, you’ll need a driver. The Xdrive is frequentl…
Motor: https://www.aliexpress.us/item/3256804897857573.html?gateway...
The 90KV version is what you want.
Re: CARA 2.0 – “I Built a Better Robot Dog”
#20As a man who always desperately wanted a Sony AIBO (and is now only put off by the bonkers $300 a year AI subscription), I am unduly excited.