Robot Tipping issues

[JohnSchneider]

Originally Posted by Abhishek R

I would think you would want a long base, so that if you accelerate quickly forwards then back you won't tip yourself easily?

Though I guess if you get swiped from the side with a long base, you may risk falling over sideways, though I haven't seen that a whole lot.

Just use your robot to right itself

[ratdude747]

One of the oddest tricks I remember was in 2008. My team at the time (1747 HBR) had a problem with overshooting when hurdling the overpass which would snare the grabber on our angled forklift and tip us over to the point of being caught on the overpass with the wheels off the ground. Our fix was to (IIRC) zip tie a piece of 3/8" round stock to the lower rear frame rail, which worked as a makeshift wheelie bar and prevented the tipping issue from disabling us.

[MrForbes]

We did the sideways tipping test last night, our robot has to go to about 45 degrees leaned over before it will tip over.

Still need to do the front and rear tipping tests, unloaded and loaded. Although we kind of have a safety, since the tote stack falls over way too easily.

[Batterink]

We did two things to prevent tipping. We designed as much wait opposite to where we hold the totes/cans as possible. That wasn't enough, so we added weights (dumbbell plates) to the back. We also noticed that if the driver accelerated, or "decelerated" to quickly we could either tip, or lose our stack. So we implemented "ramping" code that limits the acceleration of the bot.

[Jon Stratis]

We're about as tippy this year as we've ever been... it takes about 65 degrees before we'll tip over this year. We've had that number as high as 80 degrees in the past!

[Trey178]

We've designed the top deck of robot with the ability to slide back via a motorized lead screw. When we lift up 3+ totes above the top of our frame, our operator will slide the deck back, moving the C.O.G. with it. It will move forward when we're ready to score.