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Questions tagged [rotation]

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6 votes
3 answers

Generate transformation matrices for rotating around a object?

How do i compute all transformation matrices which places a robot endeffector at the shell of this sphere, with the end effector pointing toward the object in the center. I know at all time how far ...
test's user avatar
  • 111
4 votes
1 answer

Using pre multiply or post multipy for rotational matrix to get a new homogenous transformation matrix?

I am confused about how do I multiply the rotational matrix in this case. I know that both T1 and T2 needs to be multiplied by a rotational matrix but I don't know how to multiply the rotational ...
shafiyyah's user avatar
2 votes
1 answer

How can I attach an arm to a double-flat drive stepper motor?

This is my first robotics experience, outside of one class 10 years ago. I've been Googling this question for about an hour but I can't find an answer! I'm using a ROHS Step Motor 28BYJ-48 (with an ...
CreatedByBrett's user avatar
2 votes
5 answers

Shield IMU from magnetic interferences

I experienced some drifting when coming near to magnetic fields with my IMU, so I wondered if it is possible to completely shield the IMU from external influences. Would this be theoretically possible ...
Averius's user avatar
  • 21
1 vote
1 answer

Center of gravity offset for accelerometer and gyroscope readings

I am working on a 6DOF IMU that contains a 3 Axis Accelerometer and a 3 Axis Gyroscope. I am building a project to plot the position and orientation of the turret/cabin in a crane in 3D space. The IMU ...
Akash Sagar's user avatar
1 vote
1 answer

How to construct rotary turn table (S/J1 axis) from ball bearing? [closed]

For my robotics arm project I have recently come across the following ball bearing at low discount price which I think could make a great rotary table for my arm. However it does not seem to have any ...
JDS's user avatar
  • 429