pic: Ball Harvester

[IndySam]

Originally Posted by falconmaster

Well we feel that we will be allowed with our bumper design. W willadd bumpers to the diagonal sections with 6 inch sections. If we are not allowed we will swap them out with a straight six inch sections. Our argument though will be that the corners will be protected, no bumper section will be less than 6 inches and the weight of the part not on the bumper perimeter will be counted against the robot weight. Even if you had a straight section instead of diagonals the corners would not be protected on the inside. Oh well we will see

Wow I think you are taking a big chance.

If I were your inspector I would rule that your angled bumpers do not qualify as BUMPERS.

[Bob Steele]

I like your design but there is another rule that the bumpers must make first contact with the wall... I think your outside bumper corners should prevent your rollers from hitting the wall first... so that should be ok.

I would be careful though as another robot or trailer can hit the roller area... with the corner of their robot.. I can speak from experience in 2006 with a front roller that picked up the poof balls...

It was an issue then.. but of course ... in 2006 we didn't have mandated bumpers on the robot... just suggested...so we took many hits from unbumpered robots. We ended up having to use a titanium bar to protect our roller.

Good luck with your design... I hope it works great!!

[Greg Needel]

Originally Posted by falconmaster

Well we feel that we will be allowed with our bumper design. W willadd bumpers to the diagonal sections with 6 inch sections. If we are not allowed we will swap them out with a straight six inch sections. Our argument though will be that the corners will be protected, no bumper section will be less than 6 inches and the weight of the part not on the bumper perimeter will be counted against the robot weight. Even if you had a straight section instead of diagonals the corners would not be protected on the inside. Oh well we will see

i think you should look at this http://forums.usfirst.org/showthread.php?t=11170

[waialua359]

wow. seems pretty black and white to me.

[Wetzel]

We've built several iterations of intake and lift prototypes, and the tubes work well. What are you using to secure them to the roller?

Wetzel

[JVN]

Originally Posted by falconmaster

Well we feel that we will be allowed with our bumper design. W willadd bumpers to the diagonal sections with 6 inch sections. If we are not allowed we will swap them out with a straight six inch sections. Our argument though will be that the corners will be protected, no bumper section will be less than 6 inches and the weight of the part not on the bumper perimeter will be counted against the robot weight. Even if you had a straight section instead of diagonals the corners would not be protected on the inside. Oh well we will see

Send that inspector my way and we'll increase the size of our intake.

-John

[Vikesrock]

Originally Posted by falconmaster

Well we feel that we will be allowed with our bumper design. W willadd bumpers to the diagonal sections with 6 inch sections. If we are not allowed we will swap them out with a straight six inch sections. Our argument though will be that the corners will be protected, no bumper section will be less than 6 inches and the weight of the part not on the bumper perimeter will be counted against the robot weight. Even if you had a straight section instead of diagonals the corners would not be protected on the inside. Oh well we will see

Here's the problem with this. In order to protect the corner on the angled side the bumper will have to extend out past the corner itself placing it outside the bumper perimeter. With this being a bumper and not BUMPER it must fit within the volume constraints and would also redefine your bumper perimeter which would be problematic.

[WhiteShadow1474]

how exactly did you get the pnumatic tubing to stay on there.

And; the bumper rules are so complex. I have no idea if this design is legal.