|
Re: Bump climbing issues
I have a few questions.
Do you know the coefficient of friction of your tires on carpet? Can you calculate that? If your coefficient of friction is around 1, you should have no problems on the bump from that end.
What gear ratio is going through the box?
What happens when you drive your robot against a wall? Like, put your robot against a wall, and try to drive forward. Do the wheels spin in place?
You probably are short on torque. Ideally, when you're not shifting, you want your drive to be traction limited. If you're traction limited, your wheels will slip if you drive against a wall. This will probably require 2 more CIMs (you could use the FPs, but why wouldn't you use 2 more CIMs if you have them?) and an appropriate Toughbox gear ratio. It'll require you to move one or two around from the rest of your robot (you can probably replace them with FPs depending on the application), but it'll let you get over the bump or push a robot without moving at an unacceptably slow pace otherwise.
__________________
Mentor / Drive Coach: 228 (2016-?)
--2016 Waterbury SFs (with 3314, 3719), RIDE #2 Seed / Winners (with 1058, 6153), Carver QFs (with 503, 359, 4607)
Mentor / Consultant Person: 2170 (2017-?)
.
College Mentor: 2791 (2010-2015)
-- 2015 TVR Motorola Quality, FLR GM Industrial Design -- 2014 FLR Motorola Quality / SFs (with 341, 4930)
-- 2013 BAE Motorola Quality, WPI Regional #1 Seed / Delphi Excellence in Engineering / Finalists (with 20, 3182)
-- 2012 BAE Imagery / Finalists (with 1519, 885), CT Xerox Creativity / SFs (with 2168, 118)
Student: 1714 (2009) - 2009 MN 10K Lakes Regional Winners (with 2826, 2470)
2791 Build Season Photo Gallery - Look here for mechanism photos My Robotics Blog (Updated April 11 2014)
Last edited by Chris is me : 10-02-2010 at 21:39.
|