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-   -   Your robot's aprrox. weight (http://www.chiefdelphi.com/forums/showthread.php?t=25658)

Hinkel Y. 19-02-2004 23:49

Your robot's aprrox. weight
 
Well, with less than a week to go, and your robots almost done (hopefully), how heavy are your bots?

Yan Wang 19-02-2004 23:54

Re: Your robot's aprrox. weight
 
Er, I supposed you meant GREATER than 130lbs as the last choice.

We're 128.5lbs ... without the lexan which is being ordered. Should be 130.0 like the last 2 years :)

ngreen 19-02-2004 23:59

Re: Your robot's aprrox. weight
 
More than 1 lb and less than 1000. Approximately. + or - 870lbs.

edit: Greater than 74 and less than 130. We are still finishing some work so it should be in the range of 129.99. We had better make sure to blow the dust off before we go to weigh. We were 129.8 last year.

Solace 19-02-2004 23:59

Re: Your robot's aprrox. weight
 
a number greater than what we'd like it to be.

Elgin Clock 20-02-2004 00:04

Re: Your robot's aprrox. weight
 
128.5 as of the other day before all our new spiffy speed holes we are having put in!!

Welcome to the big time!!

Kevin Sevcik 20-02-2004 00:10

Re: Your robot's aprrox. weight
 
124 last I'd heard. We still have some lexan and a few other tiny bits to put on, but I think we'll be underweight this year without a furious round of speed holing. *runs about knocking on every piece of wood he can find*

Hinkel Y. 20-02-2004 00:10

Re: Your robot's aprrox. weight
 
Quote:

Originally Posted by Elgin Clock
128.5 as of the other day before all our new spiffy speed holes we are having put in!!

Welcome to the big time!!

Speed holes A.K.A. "Access Holes" lightened a pound for us, but trimming some of the bosch tubes (that does no have a lot of pressure load) dropped us down a few pounds... :D

We're about 135 (?) right now with everything on...

pras870 20-02-2004 00:22

Re: Your robot's aprrox. weight
 
Last time I was there, we were at 109lbs and everything was assembled and on the robot. I think the team is gonna try to beaf it up so it is not too light, to around 125-128lbs.

OneAngryDaisy 20-02-2004 00:28

Re: Your robot's aprrox. weight
 
Uh, I think we'll finish our bot first before we weigh it... All i know is my part is 4.7 pounds, w00t

sanddrag 20-02-2004 00:42

Re: Your robot's aprrox. weight
 
We were at 129.6 without leds, bumpers, a shield, sensors, backup battery, and team numbers. All of that we figure weighs about 3.5 lbs so you can say we'll be doing a bit of lightnening.

Michael Long 20-02-2004 07:38

Re: Your robot's aprrox. weight
 
Beat this ladies and Gentlmen .. As of last night .. Kilabyte weighs in at 145lbs :ahh: .. I dont even think Dr. Atkins can help.. It is time for some serious plastic surgury....

Chris Fultz 20-02-2004 07:45

Re: Your robot's aprrox. weight
 
Sounds like you all should have been using the Cyber Blue Weight Database!

Just joking. Good luck with the weight reduction activities.

I think we are looking for about 2 pounds.

ZZII 527 20-02-2004 19:35

Re: Your robot's aprrox. weight
 
132.4 lbs. minus whatever metal filings were left after we cut and drilled for an hour. Several more hours to go.

Katie Reynolds 20-02-2004 19:42

Re: Your robot's aprrox. weight
 
Wow! I wonder how many other teams can say,
Quote:

Originally Posted by pras870
"...the team is gonna try to beaf it up so it is not too light, to around 125-128lbs."

:yikes:

sanddrag 20-02-2004 20:53

Re: Your robot's aprrox. weight
 
Quote:

Originally Posted by Michael Long
Beat this ladies and Gentlmen .. As of last night .. Kilabyte weighs in at 145lbs :ahh: .. I dont even think Dr. Atkins can help.. It is time for some serious plastic surgury....

Sounds like you need to scrap a mechanism. Either that or do a serious remanufacturing of all the parts out of a thiner material. We are only 3.5 pounds over and we are still remanufacturing a major part.

Chris Bright 20-02-2004 22:29

Re: Your robot's aprrox. weight
 
about a week ago our robot (1023) weighted in at about 160. As of tonight we are at 128.4 with just hooks for the moblie goal and sensors to put on.

sanddrag 20-02-2004 22:34

Re: Your robot's aprrox. weight
 
Quote:

Originally Posted by Chris Bright
about a week ago our robot (1023) weighted in at about 160. As of tonight we are at 128.4 with just hooks for the moblie goal and sensors to put on.

Care to explain how you reduced it so much? I'm sure we all would love to hear.

Solace 20-02-2004 23:01

Re: Your robot's aprrox. weight
 
never say never - in 2002 we were able to successfully bring our robot down from 160 something pounds to within weight without sacrificing functionality.

this year we're better off, we weigh in at only 147 pounds.

psyco_klown 20-02-2004 23:02

Re: Your robot's aprrox. weight
 
today we finally check we all thought it was going to be heavy cuz of the looks but it came in at 97 lbs and it its no small robot

Alaina 20-02-2004 23:09

Re: Your robot's aprrox. weight
 
With the robot fully assembled she weighed about 125...Probably a little more, but she'll make the weight limit for sure.

computhief263 20-02-2004 23:23

Re: Your robot's aprrox. weight
 
Quote:

Originally Posted by Michael Long
Beat this ladies and Gentlmen .. As of last night .. Kilabyte weighs in at 145lbs :ahh: ...

Ok, I will. As of first weigh in 2 nights ago we were at 149.9lbs......needless to say our robot was put on a serious crash diet.
As of last night we were down to 131, looking foward to tommorows weigh in to see were we are at.
:cool:

ryan_f 20-02-2004 23:43

Re: Your robot's aprrox. weight
 
our last years robot was 179 lbs. we got it down to 130.0lbs about 5 minutes before qualifications ended. This year's is 105lbs with a couple things not mounted

Robb Gerber 20-02-2004 23:52

Re: Your robot's aprrox. weight
 
we're real fast with lots of bells & whistles all under 130lbs with weight to spare.

We can hardly believe it ourselves.

For those of you >130 - keep drill'n
Good Luck to all! :)

Steve W 21-02-2004 00:10

Re: Your robot's aprrox. weight
 
Rob could we lend you some of our weight?

Elgin Clock 21-02-2004 02:11

Re: Your robot's aprrox. weight
 
Quote:

Originally Posted by Elgin Clock
128.5 as of the other day before all our new spiffy speed holes we are having put in!!

Welcome to the big time!!

127lbs as of last night (2/20/04) after putting some more "stuff" on it, and making more spiffy patterns in the robot like this one!

Still going to make the weight limit... SWEET!!!

Ryan Albright 21-02-2004 11:58

Re: Your robot's aprrox. weight
 
We our overweight 131.1 and thats without any skins that are gonna weigh about 5 pounds so we are working on taking out weight right now the answer looks like we are taken off one of the motors

Melissa Nute 21-02-2004 16:22

Re: Your robot's aprrox. weight
 
We were at 123 last time we weighed it.

andy 21-02-2004 18:29

Re: Your robot's aprrox. weight
 
Not to brag or anything....

We weigh 63 lbs with out the battery and the 18 pound arm. So a grand total of about 80 lbs right now.

Also we have a goal gripper, and side "wings" to push balls.

Hopefully we didn't build it TOO light... (hope duribility isn't a problem)

Good luck yall!

-Andy

Chris Bright 21-02-2004 23:31

Re: Your robot's aprrox. weight
 
The way we lost most of our weight was reducing our robot's two motor drivetrain to single motor drivetrain. This allowed us to take a lot of weight out of our gearboxes. We didn't need the extra motor but it would have been nice.

Another way we took out all that weight was by trying to remove as much steel as possable. For starters we milled down all of out sprockets.

the rest of the weight was lost in drilling holes.

Elgin Clock 22-02-2004 03:38

Re: Your robot's aprrox. weight
 
Quote:

Originally Posted by Ryan_team710
We our overweight 131.1 and thats without any skins that are gonna weigh about 5 pounds so we are working on taking out weight right now the answer looks like we are taken off one of the motors

Wow.. what are those skins made out of??? May I suggest just making them out of tin sheet metal?? Those are real light, actually they are so light, that I hung our previous year's skins from that track system in the ceiling (from the tiles) at the HS last weekend to display them and get them off the floor!!

Madison 22-02-2004 03:55

Re: Your robot's aprrox. weight
 
We are currently a bit overweight, but not alarmingly so. Our problems are primarily with where our weight is rather than how much of it there is.

Our center of gravity is much further toward one end of the robot than we anticipated and that's created some problems regarding the operation of our systems.

Steve W 22-02-2004 08:37

Re: Your robot's aprrox. weight
 
10 lbs over = go on diet. We shead all those lbs then we must have had some Krispy Kreames cause now we are 6 lbs over. Why do these stupid diets work for such a short time. Maybe after running Blizzard 5 around it may shed those lbs. This I doubt so its back on diet.

Aignam 22-02-2004 09:28

Re: Your robot's aprrox. weight
 
When I left BMS yesterday, we were 1.5 lbs over. We'll get it down to something frighteningly close to 130 lbs, soon, though.

We started shaving off half of the heads on all the bolts on the robot to save weight. ::sigh:: God I love build season.

Josh Siegel 22-02-2004 19:27

Re: Your robot's aprrox. weight
 
We weighed at each step, but somehow we gained a ton of weight... 165-170lbs last weighing, yikes! We probably have to amputate some features :(. Anyone know the difference between 16 gauge wire and 10 gauge wire weights? ;)

stupidfreshman 22-02-2004 21:25

Re: Your robot's aprrox. weight
 
it was 145 but after a day of weight reduction its down to approximatley 130 but it looks like a school bus the way we cut the side panels

jacob_dilles 22-02-2004 21:27

Re: Your robot's aprrox. weight
 
Quote:

Originally Posted by Josh Siegel
Anyone know the difference between 16 gauge wire and 10 gauge wire weights?

:D :D :D :D

ZZII 527 23-02-2004 17:52

Re: Your robot's aprrox. weight
 
Today's weight counts:

START: 132.4 lb.

-0.4 lb. drilling holes
+0.3 lb. lights
-0.4 lb. old pushing beam
+0.5 lb. new pushing beam
-0.5 lb. old side braces
+0.3 lb. new side braces
+0.1 lb. of who know's what

END: 132.3 lb.

NEW IDEAS FOR SAVING WEIGHT:
-rewire
-more holes
-take off washers and any unneccesary bolts
-shorten steel axles by 1/2" on each side
-fill tires and pneumatics with helium

Aaron 23-02-2004 17:57

Re: Your robot's aprrox. weight
 
We did our first accurate weighing today with a complete (or nearly complete) robot. We weighed in at 129.9, SWEEEEEET!!!!!!!!!!!!!!!!!!!!!!! :D

edomus 23-02-2004 18:40

Re: Your robot's aprrox. weight
 
we are 110 with only half the bot. lol

Aignam 23-02-2004 19:20

Re: Your robot's aprrox. weight
 
Quote:

Originally Posted by edomus
we are 110 with only half the bot. lol

Ouch...

Quote:

Originally Posted by Aaron
We did our first accurate weighing today with a complete (or nearly complete) robot. We weighed in at 129.9, SWEEEEEET!!!!!!!!!!!!!!!!!!!!!!! :D

Now THAT is pretty awesome. ::sigh:: Some kids have all the luck..;)

ChrisH 23-02-2004 19:39

Re: Your robot's aprrox. weight
 
Quote:

Originally Posted by Aaron
We did our first accurate weighing today with a complete (or nearly complete) robot. We weighed in at 129.9, SWEEEEEET!!!!!!!!!!!!!!!!!!!!!!! :D

Remember three things:

1) The scales used in the past were only accurate to the nearest pound.

2) The scales vary by at least 0.5. At Nationals last year there were 4 scales. One was significantly heavier than the rest, two were close and one showed a half pound less than the others. This was when the inspectors put the same robot on all the scales to get a feel for the differences. Robots close to 130 were weighed on the "light" scale.

3) The weight shown on the scale at the competition is the only one that counts.

You're not out of the woods yet! If I were you I'd try and find at least another half pound. Easier now than at a competition.

ArJubx 23-02-2004 20:50

Re: Your robot's aprrox. weight
 
Must be that we are rookies or something...but comparing to my 7 year old sister (50ish pounds)...I say our bot is about 70 pounds (with bat) with only one minor component to go....


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