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Unread 23-06-2002, 22:40
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#0047 (ChiefDelphi)
 
Join Date: May 2001
Location: Pontiac, MI
Posts: 21,214
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Stretcher Info

Posted by Nate Smith at 1/11/2001 12:37 PM EST


Other on team #66, GM Powertrain/Willow Run HS, from Eastern Michigan University and GM Powertrain.


In Reply to: Re: Strecher may have issues.
Posted by Kyle Fenton on 1/10/2001 8:23 PM EST:



: Mike C.
: With the stretcher coupon, you can double your
: points. But just suppose that you have 2 robots that
: are not operational, or its gyro is messed up, or its
: motors are out of alignment. These are all
: common problems with robots. Since you have a
: 4
: person alliance, you want to make sure that any
: disable robots can do as best of a job as they can.
: They can be the bridge changer or maybe put the
: big balls up in the score tower.
: From first glance, in my opinion, I wouldn't take the
: stretcher over the bridge in the first place. If you
: watch the kick-off, I saw that the stretcher was too
: large and bulkily. Even people who were pushing
: had an extremely hard time getting it over. That
: would cause a big block-up and really waste time.
: If you are pulling it, I see the potential that stretcher
: might get cause it to stall right in the middle of the
: bridge, since it only has two wheels and it is really
: long, if you can get what I am saying. Also if you are
: towing, there might have the potential of falling off
: the stretcher, and loosing big points in the
: process. Also with the stretcher, I could see the
: potential of the wheel getting clogged with junk on
: the floor, causing the wheel not to rotate right, and
: move all over the place. Like a hard to pull grocery
: cart. Also it is only made of PVC piping, which
: cracks a lot if a lot of stress on the sides.
: It would be just be easier for the robots own
: wheels to be turning, than this stretcher. You see
: this stretcher thing seems a little too easy, and I
: think FIRST wanted to overlook this as a sure
: guarantee. However, testing it on a field is the only
: sure way of how effective it is.


Just as clarification, according to the field BOM and blueprint, the stretcher has 4 casters, one in each corner, and the piping along the outside is 1 1/4" diameter Schedule 40 Aluminum, not PVC. The only place where the PVC is used is in the main structure of the goal...

Nate


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