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Unread 01-10-2012, 13:27
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Re: Grade Slope for Robot Ramp

In FRC we did a couple platforms that were basically a 1 foot rise with a 3 foot long ramp. This gets you right aroun 30-35 degrees. This was similar to the ramp in the 2006 FRC game. This was very difficult for a lot of teams to climb, but not impossible. Look back over the 2007 FRC game and see what some of the folks did there.
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Unread 01-10-2012, 16:37
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Re: Grade Slope for Robot Ramp

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Originally Posted by IKE View Post
1 foot rise with a 3 foot long ramp. This gets you right aroun 30-35 degrees.
arcsin(1 / 3) = 19.4712206 deg
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Unread 02-10-2012, 13:42
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Re: Grade Slope for Robot Ramp

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arcsin(1 / 3) = 19.4712206 deg
Good catch.
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Unread 23-10-2012, 15:16
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Re: Grade Slope for Robot Ramp

Having delt with several ramp before, I would say 20-25 degrees would be safe. Also, I suggest adding non-slip material such as the stuff used on stairs.

If you have the time, build a seperate (simple) robot so that you can test your ramp. When testing, try using differnt wheel types/sizes and be sure to change the weight of the robot also.
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Unread 31-10-2012, 20:02
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Re: Grade Slope for Robot Ramp

Two years ago? Probably around 55 degrees.

Last year? 25.

This year, I really don't know, but I don't imagine it being more than 15 or 20.


It varies from robot to robot, and is not a stable measurement. Best idea is to go as low as possible so the largest number of robots can drive up.
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