Five Wheel System?

[LaserWorks]

I was just wondering if this would be a horrible idea for this year. I was gone for two night in a row so our Frame team shot it down and slaughter my idea. But Wondering if it's been done before.
Having a robot with wider like a four wheel system, but in the front have a angled front (Like a triangle) with an Omni-wheel.
Having the angled front would make it easier to slip past or even in some cases push other robots, and take lower any accident smashing stress that could occur on the front end of the robot.
Any information?
Thanks

[Vikesrock]

I don't think this is really what you meant, but 2175 is going with a 5 wheel drive system this year. It is based on the "Slide drive" that was used as a part of the Nonadrive system on the 148 and 217 robots last year and has been used prior to that in Vex.

There are four omni wheels on the robot corners facing forwards, and one omni wheel in the center of the robot facing sideways. The robot will drive like a traditional skid-steer drivetrain, but will also have the ability to strafe sideways.

[JesseK]

Team 16, Baxter Bomb Squad, has had 3-wheel drive for a couple of years now; however their frame has always remained 4-sided. See if they can help you with some insight to the advantages/disadvantages of a wedge-like frame, or even a 3/5-wheel triangle type design.

[MCahoon]

A sketch would help. Would your chassis be essentially a pentagon with the omniwheel in the front and traction wheels on the other 4 corners chained like a skid steer system? Given that it meets the bumper rules and fits into the starting dimensions, that is probably legal. The single wheel would provide forward/back traction but be able to slide sideways when the robot turns. That part would probably work. Dependinng on how many motors and how much weight your team wants to apply to the drive base it might reduce the power applied to the other 4 wheels.

Powering that single wheel would probably need its own motor/gearbox so that when your robot is spinning on it's axis that wheel would not be turning, but would turn when powering forward/backward.
Other than the pointed front end for deflecting collisions, what other advantages do you see?