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Unread 23-01-2003, 20:13
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Quote:
Originally posted by wysiswyg
Actually your on track. We are around the same weight area for our robot and we expect to be underweight.
36 pound frame
16 pound battery
16 pounds compressor
20 pounds completed gearbox assembly(with wheels)
10 pounds motors and nuts
That is 98 pounds with a an almost complete robot like you have it. Add a few extra pounds for control system and electronics and guess what you don't have to drill any holes in your robot. Of course our robot is a simple design and I'm estimating some of the objects weight on the heavy side
The battery weighs 13.45 lbs (uncharged, without 6# wire), and the compressor weighs 4.73 lbs. I'm going to assume you're using extrusion due to the weight of the frame (36 lbs ).
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Unread 23-01-2003, 20:42
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awesome chasis

Total drivetrain assembly weighs around 27 pounds with motors and gear assemblies plus drive platform.
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Unread 23-01-2003, 20:50
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our complete chassis weighs 9 pounds. thats without a tranny or anything. but the chassis itsself that holds the robot is 9 pounds
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Unread 24-01-2003, 14:47
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Question Is ours to heavy

our chassis with motors wheels and such weighs 88lbs. is that to heavy? We still plan to mount a robotic arm and the controllers. what would you recommend to do, we have already put many holes in the frame to reduce weight?
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Unread 24-01-2003, 17:58
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Re: Is ours to heavy

Quote:
Originally posted by Matthew936
our chassis with motors wheels and such weighs 88lbs. is that to heavy? We still plan to mount a robotic arm and the controllers. what would you recommend to do, we have already put many holes in the frame to reduce weight?

Haha, speed holes, the way of FIRST...What are you using as a material for the chassis? Got any pics we can see to help ya with reccomendations as to what we could do to cut that down?


...and again, "My bot meets Weight requiremnts on mercury"...
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Unread 24-01-2003, 19:24
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we put our chassis,all motors, actuators,valves,electrical components and everything we think we need to use plus a big 4000 page book on a scale and it wieghed 85 pounds. id say were pretty good as far as wieght.
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Unread 24-01-2003, 19:37
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team 61.. We are up to 120 pounds but we are just about finished and we plain on using all 10 pounds that is left we always push to the max.... We have not worked really late nights and i can't believe that we are almost done.... I look forward to see some other teams post pictures of there robots we have a few posted already..

First 5 pictures are ours

http://www.chiefdelphi.com/forums/pi...DESC&sort=date
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Unread 24-01-2003, 21:13
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Thumbs up The weight

I heard this team...somewhere in bloody ole Connecticut has a chassi which weighs about 8.5lbs. That's bloody good. Good luck to the chaps in Connecticut competiting with these cats.
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Unread 24-01-2003, 22:12
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If your frame is under 10 pounds and made of legal material, it is not strong enough.

Greg
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Unread 24-01-2003, 22:14
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It is quite possible for a frame to weigh less than 10 pounds, if for example, it were made of wood and the robot was only 10 inches tall.
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Unread 25-01-2003, 00:22
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The Weight

These cats tell me its made of somesort of metal. I've felt it, it certainly feels strong enough. Sorry gents, can't divuldge anymore than that.


And my good friend Greg,

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make your correction sport,

"the world demand for computers might be as high as five."

-Thomas Watson, head of IBM, 1940.

Watson
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Unread 25-01-2003, 00:48
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A quick question is it legal to build out of fiber glass? Because that stuff is lighter than aluminum and close to steel in terms of strength and wieght.
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Unread 25-01-2003, 00:57
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Quote:
Originally posted by Ianworld
A quick question is it legal to build out of fiber glass? Because that stuff is lighter than aluminum and close to steel in terms of strength and wieght.
Perhaps you mean that fiberglass' strength to weight ratio is comparable to that of steel?
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Unread 26-01-2003, 11:56
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I just hope that the teams making 10 lb frames out of wood realize the forces involved in head on, full speed crashes (which autonomous mode almost guarantees).

Just some thoughts

Greg

Oh, i'll fix my profile - im suprised no one pointed that out to be before now
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Unread 26-01-2003, 12:12
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Greg-
I love that quote from Watson. You must want to work for IBM in the near future. Good luck to you chap.
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