Robot Dog Part 1: Leg Day

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In part 1 of building a quadrupedal robot, I'll be designing, building, and programming a 3DOF leg. I'll cover topics like inverse kinematics, gait sequences, and future plans for the project. Subscribe for part 2!

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1. Love the paid actor.
2. Love the humor.
3. I hope you never stop making videos of your creativity. Really awesome.

lint

I love how you have the same base actuator for all joints so any spare parts are going to be usable for any joint that breaks. Really high quality video and I'm sure you'll be at 10x the subscriber count in a short while if you keep this up.

bami

As a PhD candidate in engineering, specializing in robotics, I must say: Excellent job, mate!
I do have one suggestion though. I'm not sure about your plan to realize the walking pattern. You mentioned that the circle made by the foot wouldn't be useful for walking. I spent a year working in a university lab that had its own quadruped robot. The team was able to achieve walking through the implementation of elliptical shapes in foot trajectory. Essentially, anything below the horizontal centerline was exerting force onto the ground while anything above it was lifting the foot. However, I'm confident that you've already considered this in your thought process. :)

megh

That’s solid work and a solid edit. Thanks for sharing.

OhHeyTrevorFlowers

The quality is insane! Such cool videos, Keep it up!

Rossi

Your design iterations come flying at break neck speed. Loved the video and your humour.

klausnielsen

Re Hammering Bearings - you have quick clamps, just use those, way easier on the bearing and way quieter.

Also, be careful with adding slots/grooves to printed parts - it's a weird quirk of additive design that sometimes adding a lightening feature adds more weight because it is heavier than the infill it replaces. This will be heavily dependent on slicer settings but double check in the slicer. Yesterday I designed a whole new part for a project, tried to minimize weight by removing material and then realized that infill was lighter still.

aschreiber

This has been on my for you page for almost two weeks now (I was subscribed already, but never took the time to watch it). Dude your videos are top quality. From the great engineering to the funny jokes and smooth video editing. It all comes together so nicely. Hopefully we can enjoy you for many years to come!

dynamodzz

You are one of best engineers on youtube. You would be able to get Ph.D right now.

thePavuk

Great Work! Can not wait to see the finished dog one day.

RaspCr

this is awesome, looking forward to seeing progress

ro-cevg

Great work! Can't wait to see the rest of the build!

TheCropShoppe

I thought i am watching a big youtuber the whole time ... then i saw your subcount! give this men more attention pls

richihorn

Love the channel. 20 years ago I used a generic bit of code on a hexapod supporting a wind tunnel model. I've since ported it from C++ to c#, JS and Matlab SImulink allows me to populate matrix with the datum positions and apply X, Y, Z rotations and translations. Then a wee bit of trig to work out the servo arm positions.

nickatredbox