What's going in your Withholding Allowance?

[Billfred]

For 1618:

-School/sponsor logos
-Vinyl to complete the team's blackout look--imagine how they wrap cars, and apply to a robot.
-Spare 545 motors with the BaneBots pinion pressed on

I'm not sure what exactly 2815 will be bringing.

[Vikesrock]

We removed our turret with shooter and the electronics to run it (our small electronics board +1 Jag from the side wall of the 'bot)

Not sure what the final weight on these parts was, but it should be well under 40 lbs.

We may be adding upgrade parts for the first conveyor (deeper Gates belts to prevent slipping) and the intake roller (investigating ways to make it faster).

[artdutra04]

Originally Posted by Vikesrock

We may be adding upgrade parts for the first conveyor (deeper Gates belts to prevent slipping) and the intake roller (investigating ways to make it faster).

If timing belts are slipping, they need a lot more tension; making them wider only increases the force you can transfer through them.

[Vikesrock]

Originally Posted by artdutra04

If timing belts are slipping, they need a lot more tension; making them wider only increases the force you can transfer through them.

The belt that is on there is tight as a drum. It was tensioned into place by moving one of the parts with a clamp and does not appear to flex at all when pushed on. It is not one of the 5mm kit belts, it has a much shallower profile. We are looking at belts with a deeper profile, not wider belts.

We have a nearly identical 2nd conveyor running perfectly using some fo the 5mm kit belts.

[ZakuAce]

We're keeping our control system, part of the turret, and we are bringing in our redesigned rollers.

[chelseymelsey]

ARGGGG! You always beat me to posting

[artdutra04]

Originally Posted by Vikesrock

The belt that is on there is tight as a drum. It was tensioned into place by moving one of the parts with a clamp and does not appear to flex at all when pushed on. It is not one of the 5mm kit belts, it has a much shallower profile. We are looking at belts with a deeper profile, not wider belts.

We have a nearly identical 2nd conveyor running perfectly using some fo the 5mm kit belts.

If it's a wrong/shallow profile belt, fair enough. If you're looking to buy more 5mm pitch belts or timing belt sprockets, SDP/SI has a wide selection, including a ton of really light polycarbonate timing belt pulleys with aluminum hubs.

[rcflyer620]

cRio board which we made modular for easy removal.
Camera system for further testing on a second robot,
Drivers station.
Some Lexan panels so they can be lettered and logos applied.
Spare wheels.
Everything else is COTS.

[Zholl]

We're holding on to our control board and driver station. We had some issues at this weekends scrimmage, all programming, mostly problems with watchdog. Everything else is pretty simple and doesn't need fixing

[Uberbots]

we are actually bringing -6 pounds of stuff and putting it all on the bot when we get to ct regional.

[Vikesrock]

Originally Posted by artdutra04

If timing belts are slipping, they need a lot more tension; making them wider only increases the force you can transfer through them.

The belt that is on there cannot get any tighter, it was tensioned into place using a clamp and does not appear to flex at all if you push on it. It is not one of the kit belts it is one with a much shallower tooth profile that we got for free from a mentor's work. We are looking at replacing it with some of the kit 5mm belts after we find some local teams not using the parts we need and we calculate what belt length we need to purchase.

[dtengineering]

Our robot was built to take advantage of the withholding allowance from the beginning. The drive modules detach, as a unit, from each side of the frame, and the control module is completely detachable, too.

Now we just need to build a dummy chassis to mount the modules on to and we've got five weeks of traction control and driving practice before Seattle.


(And, yeah... we could sure use it!)


Jason

[Brandon Holley]

Originally Posted by artdutra04

If timing belts are slipping, they need a lot more tension; making them wider only increases the force you can transfer through them.

Even properly tensioned belts can slip if they are not being used in the correct situation.

[Kims Robot]

Maybe its just tiredness setting in... but I was rereading all of the Withholding allowance rules, and being that it is 40lbs of FABRICATED items, this means things like anything in the electronics system (other than fabricated wires), ie speed controllers, camera (w/out mount), cRio, wireless bridge, etc dont count... Am I reading that right? I couldnt find anything in the Q&A or rules to contradict that. (Although I think my electrical team would think it insane to unplug any of the board other than the basic controls to keep!).

We are only keeping the control system basics, likely the camera, our lexan panels to add stickers, and we are going to do some upgrades to our conveyor system.

[dlavery]

Originally Posted by JVN

Kim,

You've got it right. 40 lbs IN ADDITION to your control system.

John

Be VERY careful about how you are interpreting "control system" and how it applies to this case. "Control system" does not equal "cRIO" does not equal "control electronics board" does not equal "operator console" does not equal "driver station." If there is any question about whether your "control system" is a FABRICATED ITEM (and therefore must be included within the WITHHOLDING ALLOWANCE weight limit) or an unmodified COTS item (and therefore permitted into the competition by Rule <R35>), - PLEASE - ask for an official determination via the official FIRST Q&A system. Do not rely on an unofficial opinion (including this one) for this topic. This is not an area where you want to have problems. Don't let bad information be the cause of a lot of heartburn at the competitions.

-dave



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