Subject:
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Re: SSClagorpion
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Newsgroups:
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lugnet.technic
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Date:
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Thu, 6 May 2004 05:06:34 GMT
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Viewed:
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13437 times
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In lugnet.technic, Steve Hassenplug wrote:
> I thought about this. The two pieces that "lock" don't need to go beyond
> their point of greatest extension. The reason for going beyond the PoGE is
> to lock, so nothing else is required to hold it in place.
>
> However the pneumatic piston will be holding it in place (keeping it locked).
> As long as the braces are in line, there is very little force on the piston.
So what happens if one set of legs manages to lock, but doesn't want to unlock,
while the other set of legs never locks at all? It's possible that the
front/back leg pairs will behave differently if the back legs are longer like on
a real scorpion.
> Also, I'm pretty sure, as you said, the piston has the most leverage on the
> braces (and the whole leg assembly) when it's close to locking. So if it
> does have to lift any weight, because of flex in the other legs, that's the
> best time.
It's less because of flex in the legs (if one set of legs flexes, the other set
should as well) than it is because a locked pair of legs will be slightly less
extended than a pair that's just about to lock or unlock, which means the weight
will transfer over to the walking legs just before they stop walking and again
just after they start walking.
Exactly when do the stationary legs switch over to walking legs? Do the
previous walking legs have to fully settle into "stationary" position, or is
there a slight transition phase where the one set is just about to complete its
walking cycle as the next set begins its own?
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Message has 1 Reply:
 | | Re: SSClagorpion
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| (...) If things do not want to unlock, the entire walking sequence stops. The whole walking sequence requires that each set of pistons in turn completely transition from closed to open, or open to closed. (...) Transitions happen when the switches (...) (21 years ago, 6-May-04, to lugnet.technic)
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Message is in Reply To:
| | Re: SSClagorpion
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| (...) I thought about this. The two pieces that "lock" don't need to go beyond their point of greatest extension. The reason for going beyond the PoGE is to lock, so nothing else is required to hold it in place. However the pneumatic piston will be (...) (21 years ago, 5-May-04, to lugnet.technic)
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