[Djur]

Originally Posted by Duke461

Not to rain on people's parades here, but.....
***Before I go on, I feel I need to point out that I do have experience with Mecanums. 2 years. 1.5 years driving***

• In that first video, some on the other side is holding the ramp up (or down, however you look at it). Now, I can't prove it, but I'm pretty darn sure that that helps the robot get up.
• It took a long time to get up that ramp. Too long.
• 1 out of 5 times that drivetrain will probably fall off, unless you go super slow, which in that case see Bullet point #2
• What happens if for some reason you can't go over the bridge that round? Mecanum's will have an extremely hard time maneuvering the ridge.
• The material on that bridge was different than that of in the real game
• In the second video, the Mecanum's were having a very hard time getting up the bridge (not too sure how it helped Mecanum's case). If anything, it shows that carefully done programming will be required just for your drivetrain.
• The more top heavy these robots become, the harder it will get.
• A preponderance of team's this year will have a strong hard pushing robot. Good luck scoring on one. It's not fun.

Please take my criticism in a constructive manner, as I will do the same.
-Duke

• I was holding the opposite end of the bridge up to allow the robot on because it doesn't have a lowering mechanism (last year's bot). The robot moved under its own power the entire time.
• There's uneven friction on the mecanums and the fiberboard is ~3x more slippery than the actual Lexan surface, so it takes longer to drive up.
• The drivetrain will not fall off the robot (if that's what you meant), nor will the robot drive off the edge if there's a careful driver.
• Not really. Mecanums still have good grip on the surface of the bridge.
• Not my robot, so I don't know what's up in that video.
• That applies for every robot, too.
• I can't see how that's applicable specifically to mecanums.

Hope this helps.