714's Winch Test

[5n1p3r]

http://www.youtube.com/watch?v=SqlaiC7fHv0

[Brandon_L]

it looks like you guys might get caught under the tunnel, unless im missing something.

[JHSmentor]

is it sliding down once you get up to the top? do you have a pawl or anything to hold it in place? Once the power is off, you don't want it to fall below the platform level or you get 0 points.

[Akash Rastogi]

Originally Posted by JHSmentor

is it sliding down once you get up to the top? do you have a pawl or anything to hold it in place? Once the power is off, you don't want it to fall below the platform level or you get 0 points.

Yes, do you have any method to prevent it from backdriving once power is shut off?

[5n1p3r]

Originally Posted by JHSmentor

is it sliding down once you get up to the top? do you have a pawl or anything to hold it in place? Once the power is off, you don't want it to fall below the platform level or you get 0 points.

Well we have the solenoid for the .5" air tank set to normally open so only when the arm+winch are being moved does the braking system disengage... when off it'll be braking. In order to slide down the motors would have to spin backwards w/o power and our braking system must fail... very unlikely although possible but 7 lbs of pressure being applied to that brake and the motors resistance will do well over hold our robot in position.