[eagleengineering] Re: Ballast
- From: Michael Montazeri <chaoticprout@xxxxxxxxx>
- To: eagleengineering@xxxxxxxxxxxxx
- Date: Mon, 11 Apr 2005 16:04:01 -0700
No, what I said was just in case the current treads break for some odd reason...
On Apr 11, 2005 2:59 PM, Karen Hillblom <KandNplace@xxxxxxxxxxxxxxxx> wrote:
>
> the point is that we might need it for something
>
> ----- Original Message -----
> From: Jeff Kane
> To: eagleengineering@xxxxxxxxxxxxx
> Sent: Monday, April 11, 2005 2:53 PM
> Subject: [eagleengineering] Re: Ballast
>
>
> ...But why? The old thread we have on the wheels work better than any new
> thread we can throw on it. If you really want to, you can start sanding
> down/grinding down 4 pieces of thread to make them worn down like the old
> pieces.
>
>
> Michael Montazeri <chaoticprout@xxxxxxxxx> wrote:
> Nick is right, we could use another team's bandsaw to cut off the edge
> of the treads....
>
> On Apr 11, 2005 6:20 AM, Karen Hillblom wrote:
> >
> > lets bring some
> > you never know if we might need it
> >
> > ----- Original Message -----
> > From: Jeff Kane
> > To: eagleengineering@xxxxxxxxxxxxx
> > Sent: Sunday, April 10, 2005 9:48 PM
> > Subject: [eagleengineering] Re: Ballast
> >
> >
> > Oh and we're not changing the thread at Atlanta. The old stuff is staying
> > on the wheels, so we don't need to bring any new thread.
> >
> > -Jeff
> >
> > Michael Montazeri wrote:
> > Yes, and taking into account what happened at So Cal, we don't want to
> > look bad at qualifiers because we totally changed our drive train.
> >
> > ; On Apr 10, 2005 8:50 PM, Jeff Kane wrote:
> > > Ya, the drive train is alright. We should just add weight to the back
> like
> > > Mr. Mitchell had said. Changing the drive train in Atlanta on Thursday
> > will
> > > be somewhat of a big task and chances are, we will have many problems.
> One
> > > will be having drive wheels in the front on the bent chassis. The drive
> > > wheels are bigger and that will also not affect the robot rocking over
> the
> > > front wheels. We have about 10 spare pounds on the robot that we can use
> > > for adding extra weight, so we should see to adding some weights in the
> > > battery box, or on the chassis. Oh and Nick...most of the weight is in
> the
> > > back. The b attery, gearboxes, and the two posts holding up the arm are
> > > closer to the back of the chassis. Only when the arm is extended over
> the
> > > front of the chassis does it seem like the weight is out there b ecause
> of
> > > how the center of gravity changes and the robot rocks on the front
> wheels.
> > > Turning will also be durastically changed too because the turning radius
> > > will be around the front of the robot where the arm is rather than the
> > back
> > > of the robot, where all of the weight is.
> > >
> > > -Jeff
> > >
> > >
> > > Michael Montazeri wrote:
> > > I'd rather not change a working drive train at Atlanta....
> > >
> > > On Apr 10, 2005 6:43 PM, Karen Hillblom wrote:
> > > > that is an issue that we were discusing befor we shiped the robot
> > > > that problem can be fixed by puting the 4 driven wheels to the front
> > > insted
> > > > of the back and have the omni wheels in the back
> > & gt; > because most of the weight is in the front
> > > > that way there is no added weight and turning should be about the
> same.
> > > >
> > > > ----- Original Message -----
> > > > From: Nancy
> > > > To: eagleengineering@xxxxxxxxxxxxx
> > > > Sent: Sunday, April 10, 2005 5:00 PM
> > > > Subject: [eagleengineering] Ballast
> > > >
> > > >
> > > >
> > > > I had a thought today about the robot rocking onto the front wheels,
> and
> > > > loosing traction.
> > > >
> > > > You may want to look at your remaining weight bud get, and add some
> dead
> > > > weight under the battery.
> > > >
> > > > Five to seven pounds would be good.
> > > >
> > > > This would lower the center of gravity and keep better traction.
> > > >
> > > >
> > > >
> > > > The down side may be more difficult turning, due to better traction.
> > > >
> > > >
> > > >
> > > &g t; The video I shot of the semi finals shows the robot clearly
> rocking
> > onto
> > > the
> > > > front wheels, and the traction wheels freely spinning.
> > > >
> > > > This started the robot rocking back and forth almost wildly as it
> > > approached
> > > > the scoring tetra.
> > > >
> > > >
> > > >
> > > > Let me know what you think!
> > > >
> > > >
> > > >
> > > > J. Ray Mitchell Jr.
> > > >
> > > > Director of Engineering
> > > >
> > > > Cinesite Digital Studios, Hollywood.
> > >
> > >
> > >
> > > ________________________________
> > > Do you Yahoo!?
> > > Yahoo! Small Business - Try our new resources site!
> > >
> > >
> >
> >
> >
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>
>
>
>
>
> - Jeff Kane
>
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