[Nuttyman54]

I would also second the gussets. Team 971 did a similar type of frame with 80/20 in 2006. We were fine at SVR, but over the course of the competition the frame had gotten so whacked up that we didn't fit in the size box at champs.

On the omni wheel note, while more rollers are better and offer a smoother ride, they're not essential. As long as everything is tightened down well, you shouldn't have any problems. Team 190's custom omnis last year weren't exactly the smoothest ride (5"od, with 10 evenly spaced 1-1/4" rollers. I don't have a good picture), but they held up for 2 regionals and champs, and it wasn't noticable when the robot was on the field.

I can't tell what size chain you're using, but you should pay close attention to whether the wheels are aligned perpendicular. #35 is more foregiving, but even that will get thrown if the axle blocks aren't aligned well enough.