With battery and bumpers, we weighed in at 105 Lbs. yesterday.
If someone is +20 Lbs. over, can you send us your extra weight??:rolleyes:
Seriously, we are adding at leat 12 Lbs of 1X2 in. aluminum bars just to get our weight up a little.
How the heck can a team be that Underweight?
Show us some pics. 
This thread can easily be applied to both robot and/or mentor.
Hard to stay underweight. 
Or drive base with our harvester weighs about 70-80 pounds and all we have to add is a shooter, which shouldn’t weigh too much.
Last year we got tipped twice at GSR and on Saturday we added around 20 pounds of weight to make us heavier.
Same for us in 06 shipped 20 lbs over the SVR machine shop was the main reason we were able to compete lol we are under by about 10
For once 612 isn’t over weight. Last year we were a good 8lbs over when we showed up to our first regional.
But this year sorry, we are 20lbs under :rolleyes: . Switch to aluminum bolts, they save weight!
Pictures in this thread. Ours is the first bot shown, as you would expect. This includes six motors, a camera and two servos.
We weighed in 33 lbs over today, which is our last work day. And that’s without our compressor and other pneumatic components. Then to make matters worse, we had to crate it today, since we won’t have any more time to work before ship day.
I’m pretty sure that we’re a few pounds under. Our head coordinator is so happy about that too cuz she wants to decorate the robot. Since I’ve been on the team (Since last year haha) we haven’t had any weight to spare. Last year we couldn’t decorate, and I’m pretty sure the year before they couldn’t. This year she’s happy cuz she gets her chance. She’s already started painting the robot 
We had been at least 20 pounds over weight a week ago, so we decided that our robot should go on a diet plan and have liposuction, we lost 34 pounds. We still needed to add stuff. We went from 1/4 inch thick metal side plates for our shooter to some lexan, went from 26 pounds to 7.5(and that didn’t have any of the holes drilled out or corners cut off). We were all happy once we got rid of that weight.
We were at 126 a few days ago so we had to go from 4 wheel crab drive to 3 wheels like so / \ and took off 1 motor
|
current weight - 157 (subtract battery after that).
2004- Somewhere in the neighborhood of 20 pounds over. Our chassis was way overbuilt, and of course very difficult to get to. We also Sawzalled a good portion of our hopper off, which in retrospect may have been a bad choice. We also drilled 1/2 holes everywhere we could fit a a drill, and holesawed everywhere we possibly could. We ended up just under.
2005- Still not quite sure how we ended up under on this one. We drilled all of the holes before we assembled the robot so they looked all nice, and ended up just under. This one certainly looks the heaviest of all the robots we’ve built.
2006- Hovered right at 120.
2007- Our ramps didn’t work out so well, so we dumped them. Our arm didn’t work out so well either, so we pinned it up at six feet and added 10 pounds of steel.
2008-Ended up under, and added about 5 pounds of counterweight for our arm.
2009- Right at 120. We might be a little over, but it’s nothing we can’t take care of in half an hour on Thursday. knock on wood
My team is also underweight. Much better than last year, we had to drill holes all over to be underwieght, good luck to you and your team, you will figure out a way to make it work.
We’re about 1/10th of a pound overweight this year, but we won’t worry about it until competition. Once they officially flag us on weight (or maybe their scale doesn’t read to tenths of a pound… who knows) we’ll bust out a drill, but right now we’re not worried.
We knew we’d be about 1-2lb over from our inventor drawing, but through some pre-emptive cheese hole-ing we are pretty much good to go.
Last year we were severely underweight, but thats due to a bot with basically no manipulator and a severe in-ability to drive. 2 years ago we were overweight due to our tank of a drive system (literally, we had some beasty treads) and 8020 lift system.
We are actually underweight so we are trying to find ways to add weight to ours without going over.
steel bars/ any other heavier stock maybe?
Yeah that and maybe surround it a bit with lexan
Is lexan lighter than plexiglass?
I’m not sure of that answer, but PLEASE, do not use plexiglass. Stick to polycarbonate. Please.
I don’t think it matters. What’s important is that the armour doesn’t shatter when a ball hits it. (That’s assuming it survives the cutting, drilling, attaching processes.)