[CRUSH-build] lifting with springs

[Tom Leibreich]

i agree w/ lamar, anyway i'm going to be gone this weekend and will be back
on tuesday because i have to go to a leadership conference so everyone have
a nice weekend see u guys tuesday

On 1/10/07, Lamar Flake <geechf at hotmail.com> wrote:
>
> I thnk that the quiker we order parts the quicker everything will get
> done... Espessially the parts that take a long time to order and get
> material for.
>
>
> >From: "Michael Eckelbarger" <michael.eckelbarger at gmail.com>
> >Reply-To: build at crush1011.org
> >To: build at crush1011.org
> >Subject: Re: [CRUSH-build] lifting with springs
> >Date: Wed, 10 Jan 2007 14:43:22 -0700
> >
> >They are only about $16 ea from McMaster-Carr  maybee we should buy a
> >couple
> >when we order the sprockets.
> >We also need to order the motors & Transmissions.
> >
> >
> >On 1/10/07, Bill Bennett <bill at wizardofaz.net> wrote:
> >>
> >>  This gives example information for the extension rate for an unloaded
> >>spring. Would be interesting to see a curve of the extension rate as a
> >>function of load, so we could compare the loaded to unloaded rate. We
> want
> >>the loaded rate to be fast enough (reasonable amout of time to lift at
> end
> >>of game) and the unloaded rate to be slow enough (safe).
> >>
> >>  ----- Original Message -----
> >>*From:* Michael Eckelbarger <michael.eckelbarger at gmail.com>
> >>*To:* build at crush1011.org
> >>*Sent:* Wednesday, January 10, 2007 10:30 AM
> >>*Subject:* Re: [CRUSH-build] lifting with springs
> >>
> >>
> >>Here is a good explaination.  (see attached PDF)
> >>
> >>On 1/10/07, Bill Bennett <bill at wizardofaz.net > wrote:
> >> >
> >> >  One of the ideas we're discussing is lifting the partner's robot
> with
> >> > springs, for example, nitrogen filled gas shocks like are used in car
> >>trunk
> >> > lid lifters. We'll have to understand how these are controlled, since
> >>if the
> >> > lift is released with no load (no robot on it), it will still have to
> >>rise
> >> > safely. Can we get one to study this?
> >> >
> >> > Bill
> >> >
> >> > _______________________________________________
> >> > CRUSH-build mailing list
> >> > CRUSH-build at crush1011.org
> >> > http://crush1011.org/mailman/listinfo/crush-build
> >> >
> >> >
> >>  ------------------------------
> >>
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> >>
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> >>
>
>
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