The Barrier Thread

[slijin]

Originally Posted by Grim Tuesday

Breakaway was a much higher drop, though.

EDIT: How would we do the math for this?

I believe what you're looking for is shear stress analysis.

Originally Posted by lemiant

To everyone who thinks you can cross the bump unaided (that video shows what lifting the robot before the wheels hit can do) with 6" wheel, I'm fairly sure that is wrong.

If the side-profile of your robot is trapezoidal-esque - that is, you have powered wheels elevated above the ground - you'd be able to do so with 6" wheels.

I don't personally believe that people will break their wheels by anything, including driving into the rail (which is steel, as can be confirmed by the CAD) - if they do, it'll be because the wheels will have already experienced heavy damage - but I do expect to see wheels damaged by collisions and impacts. Plactions will crack very easily if you abuse them enough.

[Grim Tuesday]

My question on math was how we would calculate if a wheel can climb a surface, my bad.

[slijin]

Originally Posted by Grim Tuesday

My question on math was how we would calculate if a wheel can climb a surface, my bad.

Then you'd be comparing the net upwards force (acceleration and friction) to gravity.