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In lugnet.build.mecha, Jason Coronado writes:
> o.k. so let me get this right: poa doesn't necessarily dictate dof.
It seems so, Jenifer has brought to light that the two don't always
correspond, and or there can be differences. It's pretty interesting,
although I never really thought about it seriously before, I just build
stuff. ;)
> poa
> refers to the axes a given object can rotate around, but dof refers to the
> limitations (or lack thereof) in space a given object can move around in.
Well, more so like if a shoulder can spin up and down, that's a POA that has
two DOF. But the terms have other meanings too. Because of the varying
complexity of mechanisms it really all depends.
> according to eric, i may use multiple ball joints (multiple poa) to create a
> limited amount of space that, say, an arm can move around in. therefore, i
> have many poa, but not necessarily a lot of dof. is this right, or do i
> need to start taking engineering classes?
Hmmm, more like if you lack a DOF you can make up for it with other POA's.
Sort of like using both terms to compliment eachother when describing things
I guess.
So you can say:
My Mech Lacks the POA to allow the DOF to lifts it's arm in that manner.
Or,
My Little Bot sucxz because it doesn't have the DOF in the Hips POA to allow
it to splay it's legs. And I like action poses.
Wait! I need Engineering classes too now! Help!
Legomaster
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Message is in Reply To:
 | | Re: articulation points?
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| o.k. so let me get this right: poa doesn't necessarily dictate dof. poa refers to the axes a given object can rotate around, but dof refers to the limitations (or lack thereof) in space a given object can move around in. according to eric, i may use (...) (22 years ago, 20-Nov-02, to lugnet.build.mecha, lugnet.technic, lugnet.robotics)
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