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Learn the differences between motion profiles! 💨 A real demonstration of engineering skills. In each robotic arm, in each legged robot, you will discover actuators that make the robot move! Let's compare two motion profiles: rectangular and trapezoid. - A rectangular motion profile is like a car with abrupt...

112,393 次观看 • 9 个月前 •via X (Twitter)

15 条评论

Engineering Randomness 的头像
Engineering Randomness9 个月前

You stopped too soon. You need a 4th order TG.

Adam 的头像
Adam9 个月前

That’s exactly how I press on my brakes in my car so I don’t have the backward head jolts. I move forward in my seat when I brake, but do not shoot backward when fully stopped. Cool to see the ‘math’ of how I drive.

Dog of War 的头像
Dog of War9 个月前

Show me an S-profile with minimised jerk

Andreas Köpf 的头像
Andreas Köpf9 个月前

In Germany the🍺 demo is allowed only with jerk limited s-curve velocity profile:

far 的头像
far9 个月前

bet there is some connection to window functions like the hanning window here

TensorFleet 的头像
TensorFleet9 个月前

Great demo! Rectangular (aggressive) for sprint bots. Trapezoidal for liquids, cameras, and fragile end effectors.

NiceDreamz 的头像
NiceDreamz9 个月前

been tyrin to smooth out my commands ,, thanks this gives me something to work on

Gal Zajc (100% e-acc) 的头像
Gal Zajc (100% e-acc)9 个月前

nice! interesting question would be what's the acceleration a(t) such that the drink doesn't spill and it goes from one side to the other in a smallest amount of time

Mikhail Grigorov 的头像
Mikhail Grigorov9 个月前

Was it really necessary to use beer? It goes bad, you know!

SKAKKK 的头像
SKAKKK9 个月前

Nice explanation! Feels like Trapezoidal is some sort of Low pass filter equivalent in Electronic circuits.

Altiam Kabir 的头像
Altiam Kabir9 个月前

Great breakdown of motion profiles! Smoothness vs. speed is key. Any favorite applications for each?

vulpes grumpes 的头像
vulpes grumpes9 个月前

Oh huzzah. You showed impulse vs smoothed impulse response, and the effects of inertial dampening with fluid dynamics. *slow claps*

TheRearAdmiral 的头像
TheRearAdmiral9 个月前

jerk on, jerk off

Paradroid B.Pie 的头像
Paradroid B.Pie9 个月前

Excellent! RE: Trapezoidal Have you considered different approaches to the smoothing algo? Use regular low pass (can include overshoot), critically damped (ensures best time to target with no overshoot). For extra points, you can go "spring and damper" for these too.

Fairooz Choudhury 的头像
Fairooz Choudhury9 个月前

Fascinating breakdown of motion profiles! Great insights.

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