Chief Delphi - Got Weight?

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- General Forum (http://www.chiefdelphi.com/forums/forumdisplay.php?f=16)

- - Got Weight? (http://www.chiefdelphi.com/forums/showthread.php?t=44155)

MrForbes

21-02-2006 22:51

Re: Got Weight?

we shaved about 40 lbs in 3 days.....

NeedMoreEngines

23-02-2006 10:16

Re: Got Weight?

On the aluminum frame with the 1/4" holes in it, I used a Uni-Bit (one of those stepped-bits with wider rings for each size hole) to drill out EVERY hole to 5/16". We may need to go to 3/8", but for now this has worked.

Also, we drilled out nearly every peice of Lexan on the robot in cool designs and patterns.

NeedMoreEngines

23-02-2006 10:18

Re: Got Weight?

Quote:

Originally Posted by ryan_f

Switch the air in your tires with helium.

For real?

Kims Robot

23-02-2006 13:18

Re: Got Weight?

We took off about 20lb in 6 hours on sunday... it was quite the feat, but we learned some interesting things...

Like did you know that it takes 6 2"dia holes in 1/8" lexan to take out 0.1lb?

And that 3 1 1/2" bolts with their washer & nut weigh 0.1lb?

But it takes 50+ 1/2" holes in 1/16" alumnum to take out 0.1lb! Thats a very overworked drillpress!

We took out as much unnecessary support, bolts, lexan, steel plate, etc as we could. Ashley kept track of how much we had lost each half hour, and it was cool to see the giant bucket of parts & hacked off pieces in the end.

Now our poor little robot is all skin and bones!

Jack Jones

23-02-2006 13:26

Re: Got Weight?

It's a little to late for this tip I use, but I design my least favorite (aka risky, cute but not worth much, or complicated) components to be massive. That way I have one more excuse to get rid of them.

MrForbes

23-02-2006 16:18

Re: Got Weight?

there is one of these puppies, with even more sizes, at the shop we were working in. If you have to punch a bazillion 2" holes, this is the only way to fly!

Dan Petrovic

23-02-2006 16:26

Re: Got Weight?

Quote:

Originally Posted by PVCMike

You'd be surprised with the speed holes. Last year we removed almost 20 pounds from ours, granted we had an 18' telescoping boom made of 1/8 aluminum box tubing, but still, it adds up, every little bit counts. And the thinner lexan is a good point, thinner everything will work really, we cut alot of weight a few years ago by going down 1 size in all the PVC tubing we used.

Also, smaller/less motors if you can, they weigh a bit.

Oh yeah, that lift was huge!

AV_guy007

23-02-2006 18:29

Re: Got Weight?

if you bring your robot to a place with less gravity hmmm... lets say the moon for example you will be all set and plenty under weight. :yikes:

nehalita

23-02-2006 18:42

Re: Got Weight?

It was mentioned twice before but my personal favorite tool in the Dremel. That means any screw that is too long gets the axe. Believe it or not, it does help. More so with the longer screws. Then again, our robot is all nuts and bolts so obviously, it would make a difference to us.
(Of course, we also swissed our robot. now we are comfortably under weight =D)

BrittanyV

23-02-2006 18:43

Re: Got Weight?

Zip ties are your friends. I can't tell you exactly how much lighter they are, but they sure are much lighter than steel.

We were so concerned about weight, we even used smaller zip ties in areas of little stress. I love zip ties.

Rickertsen2

23-02-2006 19:19

Re: Got Weight?

Quote:

Originally Posted by BrittanyV

Last year all of our speed controllers and electronics were held on soley by zipties. They never gave us any trouble.

pyro20911d

27-02-2006 22:06

Re: Got Weight?

An antigravity generator...oh and a drill

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