Re: Worried about weight ?
 

we are 25 pounds to the good with the robot done we just have to support a structure better wich shoudnt come close to 25 pounds

Re: Worried about weight ?
 

We weighed in the practice bot, when it had almost everything mechanical on it, but no electronics. It weighed 95bls. Then we weighed in after it was completed, and it weighed 130! D:
Thankfully, with some quick thinking, we weighed it in the next day at 116lbs, without sponsor panels. (We didn't even have to abandon features or swiss cheese!)

Re: Worried about weight ?
 

Ah. the good ol' "Forgot about the battery" 14 lbs.

Re: Worried about weight ?
 

125 lbs with almost everything on it (-battery)
Time to hit the chop shop

Re: Worried about weight ?
 

What were your sponsor panels made from that they weigh 14 pounds?

I hope you got lots of $$ if they are such "heavyweight" sponsors ;)

Re: Worried about weight ?
 

No size limit means a 26'x6.5' banner with sponsors on it.

Re: Worried about weight ?
 

We're worried about weight. We put up a couple of stacks this weekend and all of that's well under weight. We've known all along that we'd want to add a specialty mechanism or two, so we've been fairly weight-conscious about everything. If something will be CNC'ed, we save as many ounces as seems practical. If something will be manual milled, we try to do holes, slots or planing. Not everything got done in its lightest form, but I can't complain that we have an integrated robot with a 9/10 primary mechanism at the end of Week 5.

The good news is, it looks like our entire specialty mechanism will fit in under the 30lb withholding, so we can keep that back for more tuning and focus on driver practice while we can.

It's the first time we've ever actually worried about weight - the rest of the years we knew where we were but didn't have to modify anything specifically to get under weight. c.g. isn't the best, but it hasn't been an issue yet during practice.

Re: Worried about weight ?
 

40lbs.?! WOW! I think that is the lightest robot I have seen. Ours is currently at 115lbs.

Re: Worried about weight ?
 

...or maybe someone is stronger than he thinks he is?

Re: Worried about weight ?
 

We are a 4-H team we use a scale for weighting hogs and sheep. Very portable and light weight. Call your local 4-H in your area.

Re: Worried about weight ?
 

No, we didn't forget about the battery... that would have been too easy! ;)
Lol! No, the sponsor panels only weigh a couple pounds, but we ended up removing some of the light weight structure that our sponsor panels were attached to, so they will need to find a new home.

Re: Worried about weight ?
 

If we put everything we wanted to on our robot we would be about 30lbs overweight. Just the bare minimum is already pushing 120. So yeah, we're getting the saws and drills ready.

Re: Worried about weight ?
 

Final practice robot weighed in at 126.5 lb. Started doing some budgeting and calculations, looks like we're replacing our 8020 super-structure with 1/16" tubing. Looking to have atleast 4+lb left over to use as ballast.

Re: Worried about weight ?
 

We're always at the limit so it's a worry but nothing we haven't dealt with. We're currently sitting at about 105 pounds, gives us a little bit to play with in case anything small needs to be added or it at least gives a little play to add some additional weight as a ballast.

Re: Worried about weight ?
 

This is the first time we've been concerned about weight in years. In the past we've used Lexan sheets to display our sponsors and cover electronics from damage but this season we've had to print stickers and apply sponsor logos directly to the frame. We even cut our 3' ethernet cable in half to save an ounce. Currently weighing in around 124, some basic refinements should get us down to 120..