Robotics 1 U1 (Kinematics) S3 (Rotation Matrices) P1 (Rotation Matrices)

This video introduces the concept of 'Rotation Matrices' as a way to represent the rotation, or orientation, of one coordinate frame relative to another. The three rotation matrices (rotation around X, Y, and Z) are given, and the derivation of the rotation around the Z axis shown. This video also shows how any rotations can be accomplished by stringing together rotations around X, Y, and Z, and multiplying the corresponding matrices.
Robotics 1 is a college-level introductory robotics class covering kinematics, motion control, and sensors and machine vision.
For complete curriculum and to get the kit used in this class, go to www.robogrok.com

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Neil S
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[@belle7770]

Thank you so much for sharing this 🙏 Also talking kinda slowly helped me process what you were saying too, just all around a big thank you! I'm in a mechatronics fundamentals class right now and my professor just launched into using these matrices without any explanation as to what it was doing and you totally saved the day!

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This video is amazing. I'm going to use screenshots in my classes to help teach this topic if that's alright... Thanks for the video.

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You are great, you saved me up hours of looking on books for the exact thing i was looking, i am working in my thesis with blender and robotics and need to know how the rotation matrix values were distributed.
pd: sorry for my english, i am from Chile-South America :). Greetings

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[@philipperubbers6840]

Why are you left multiplying by the change in axes, instead of right multiplying? (19:15)
I believe this is an error.
In this example it makes no difference (as there is no change in axes), however by left multiplying you are changing axes first, and then rotating, which would then rotate around the new (incorrect) axis on a more complicated configuration.

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