pic: FRC1293 Prototype 6wd Chassis

[Zflash]

All parts of a ROBOT between 0 and i belive it was 8.5 inches from the
ground that are used to push against or interact with an
opposing ROBOT must be within 10 degrees of vertical.

This was the rule in previous years it may change. This is just a friendly warning so that you do not have to change anything at an event. The design looks clean and open for easy access to the various systems. Do you have any wieght values yet?

[Cory]

Originally Posted by Zflash

All parts of a ROBOT between 0 and i belive it was 8.5 inches from the
ground that are used to push against or interact with an
opposing ROBOT must be within 10 degrees of vertical.

This was the rule in previous years it may change. This is just a friendly warning so that you do not have to change anything at an event. The design looks clean and open for easy access to the various systems. Do you have any wieght values yet?

I don't think those chamfered parts would ever interact with another robot, and by my entirely unofficial interpretation of a previous year's rule, would be ok.

[Taylor]

Don't forget a way to attach bumpers (assuming they'll be mandatory in '09)

[sdcantrell56]

However, all of the angled bits hanging down past the bottom flat part are unnecessary material. It is not gaining the design any strength and the extra weight could be avoided by eliminating it all together. Possibly make the entire bottom of the frame flat with a 1/2" flange for extra strength.

[Thermal]

Originally Posted by Cory

I don't think those chamfered parts would ever interact with another robot, and by my entirely unofficial interpretation of a previous year's rule, would be ok.

It could, but probably only the top. I was planning on creating a small 5" bumper plate that covers the front of the sideplates. It would attach using the same holes as the spacers.

It would have the added benefit of making us legal, AND keeping stuff out of the wheels ;-). the bot shouldn't weigh more than 50 or so pounds with the electronics (not including battery), but i'll work in inventor for a bit and come up with an accurate calculation of its total weight sooner or later.

Also i'll look into a shop that can do some flanges for us so I don't have to use any UHMW to back and reinforce the aluminum. Thanks for the tips so far.

:edit: The extra bit around the wheels are mostly a safety precaution to just keep stuff from jabbing into the KOP wheels, they arn't the sturdiest wheels around.

[sdcantrell56]

Thats true but imo the added weight is not worth the small small chance that something gets in the spokes and kills the wheel. If something were to happen, it would be a quick swap anyways.

[Thermal]

with the way the toughboxes are mounted, I cannot make the center part of the chassis smaller than 5" tall, so I'm going to keep the inside chamfers.

However I'll think about flattening the front and rear and cutting some material off.

Thanks again for the tips.

[AdamHeard]

Originally Posted by Thermal

with the way the toughboxes are mounted, I cannot make the center part of the chassis smaller than 5" tall, so I'm going to keep the inside chamfers.

However I'll think about flattening the front and rear and cutting some material off.

Thanks again for the tips.

It doesn't have to be that tall on both sides though.

[Zflash]

Originally Posted by Cory

I don't think those chamfered parts would ever interact with another robot, and by my entirely unofficial interpretation of a previous year's rule, would be ok.

The bottom chamfer is fine (Team 1319 has done that in the past) however the top chamfer does create a wedge like surface (which is why we haven't). While I totally agree with you that the top chamfer would not ever come in contact with other robots I was just pointing out what I have seen teams have to fix at a regional in the past. I suppose they would have much rather have had you as an inspector.