Subject:
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Re: More Gundam 06 pics
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Newsgroups:
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lugnet.build.mecha
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Date:
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Wed, 27 Mar 2002 12:14:21 GMT
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Viewed:
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601 times
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In lugnet.build.mecha, Christopher Snead writes:
> In lugnet.build.mecha, Brian Cooper writes:
>
> > Armor removed from one side for a skeletal cutaway:
> > http://members.aol.com/_ht_a/infradread/Lego/MS/Cut06.JPG
>
> Hey, I was checking out that pic of the hip (with armor removed), and I noticed
> shock absorbers attached to the technic turntable. Is that to help eliminate
> some of the slop in the swing out motion of the leg?
In earlier designs I had worm gears controlling the outward leg movement but
I found them to be unnecessary. Instead the shock absorber pushes the leg out
until a tire bump stop at the top hits the hip frame. The vertical force
of the mecha's weight lets this hip system find a stable balance point even
though it's springy in both directions.
> Just out of curiosity, how do you deal with the worm gear slop? I find that
> throwbot gearboxes eliminate most of the primary slop (due to the worm gear
> sliding on the axle) but not all of it. If I'm making a gearbox using technic
> triangles, I can eliminate all of the primary slop by cutting a "rib" off of a
> technic corrugated tube and and placing it in the space in which the gear >would slide.
The slop is dependent upon the gear ratio.
The way I use the throwbot gearbox, a big gear is driven
by the worm, not a medium gear. Also 8x2 technic plates
sandwiched (studs inward) on both sides of the big gear make it possible
to have a rigid joint that places no torque on a technic axle
(worm drives big gear, big gear moves attached technic plate)
which is why I can use these on the knees and ankles of 06.
"K"
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Message is in Reply To:
 | | Re: More Gundam 06 pics
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| (...) shock absorbers attached to the technic turntable. Is that to help eliminate some of the slop in the swing out motion of the leg? Just out of curiosity, how do you deal with the worm gear slop? I find that throwbot gearboxes eliminate most of (...) (22 years ago, 27-Mar-02, to lugnet.build.mecha)
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