CLIMBING RULES ?
 

OK so our team is wondering if after the match ends if the robot can the slide down i ask this because as soon as the robot is disabled it slides down because the motors are no longer powered PLZ SOMEONE HELP:yikes:

Re: CLIMBING RULES ?
 

The CLIMB is scored 5 seconds after the match or after all objects come to a rest, whichever is sooner.


I'd look into adding some sort of interlock on your robot, since if it can't stay up for 5 seconds then it won't count.

Re: CLIMBING RULES ?
 

Technically...that's not okay. So no, you robot can't slip back down, and it will be assessed from the lowest point of your robot.

Re: CLIMBING RULES ?
 

It's a little late to be asking this. Really. Go read the manual.

Here's the answer - Only look at it once you've read the rulebook:

Re: CLIMBING RULES ?
 

In short: Yes, it can slide down, but no climb points will be awarded due to the timing (the scores are assessed after 5 seconds or when everything stops moving--including your robot sliding down the pyramid).

There are some relatively simple ways to deal with this, including having a piston or servo put a pin into your climber's drivetrain to lock it.

Re: CLIMBING RULES ?
 

The rules (always a good place to start) says
"Points are awarded to ALLIANCES per the details below. Final scores will be assessed five (5) seconds after the ARENA timer displays zero (0) or when all elements come to rest, whichever event happens first. "

So if you robot should be scored where ever it is after 5 Sec after the end of the match. As a practical matter it might be when the Ref verifies your location which might be more than 5 sec.

Re: CLIMBING RULES ?
 

Suggestions:

Switch your motor controller to "brake mode"

Start working on a locking mechanism, stat... Maybe a pneumatic piston that slides into a hole on your gear, or something.

Re: CLIMBING RULES ?
 

Brake mode only "brakes" when the motor is slowing down. It won't hold the position.

My suggestion would be a winch kind of thing. Like a volleyball crank, or maybe a rope cleat. Try googling those, see what you come up with.

Edit:
I also happen to have seen your climber. If you were to add another of a certain mechanism that is on the top to the bottom, it could just sit on that.

Re: CLIMBING RULES ?
 

It will hold position, just potentially not very well.

Victors will break if there is no pwm signal and the break jumper is set.

Re: CLIMBING RULES ?
 

Brake mode on any of the legal controllers only shorts the motor leads together. The motor must spin to generate the electricity that is fed back into the motor which opposes the motor's rotation. So if the motor is not rotating there will be no braking action.

The amount of the braking action is in direct proportion to the speed of the motor. The higher the speed of the motor they greater the braking action. The lower the motor rpm the lower the braking action.

So with a high enough reduction setting it to brake mode will slow down the "slide" but not prevent it.

Re: CLIMBING RULES ?
 

Which is true, but that was my point, because if their mechanism is slipping when the power is cut there's no need to make it hit the ground harder than it has to.