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Results tagged with design
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user 163
Mechanical, electronic or programmatic design of a robot.
1
vote
Accepted
Why can't motors be as elegant as human muscles? Why do we have to use electromagnetism to c...
Human muscles take 9 months to grow and maybe 18 months to train for useful motions. It then takes years to refine precision and strength ... and still it falls short of an electric actuator arm in te …
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42
votes
Why are Mars rovers so slow?
But there are some other design constraints worth mentioning.
Energy is simply the worst bottleneck for mobile, autonomous systems. …
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5
votes
Effectiveness of a Mobile Robot In Relation To Mass
This is a sweeping generalization that I'd be very cautious about. Engineering is about tradeoffs. But there are two things that I'd be comfortable generalizing, from my own personal biases.
I'm 99% …
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11
votes
Why do Mars rovers designers prefer wheels over tracks?
I think the surface of mars was pretty well known by the time Spirit / Op landed.
The rocker-bogie system allows the robot to climb over obstacles up to twice the diameter of the wheels, while avoidi …
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6
votes
Accepted
MEMS accelerometer calibration
It is possibly a bias in the accelerometer. The measured non-zero results (like yours) are the bias. No idea if the magnitude of these biases is right, i.e., you may be experiencing more error than y …
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2
votes
How do I select the best configuration for a known workspace, load and task?
EDIT What we actually did here was describe the algorithm to select the optimal manipulator design. That should answer your first question. … My advice: I would design the robot based on budget and programmability, rather than trying to make a claim about the optimal configuration. …
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10
votes
What are human-friendly terms for mobile-robot orientation and relative direction of non-rob...
Typically, a coordinate frame is placed at the robot center. The x-axis points forward, the y-axis points left, and the z-axis points up. Then, we measure angles with respect to the x-axis. So, a 90 …
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