Team 753 short and wide mecanum over the bump

[jason701802]

The title really says it all, here's the video http://www.youtube.com/watch?v=z--8Pb5tb1c

[PaW]

Nice save at the 1:40 mark! Speed control and driver practice will be key to avoid an "end over".

[V_Chip]

The ability to sit at the top of the hump and move laterally has the potential to be a great defensive advantage

[jason701802]

Originally Posted by PaW

Nice save at the 1:40 mark! Speed control and driver practice will be key to avoid an "end over".

yes they will, we are actually looking into putting an accelerometer on it to automatically transition us back onto the flat ground.

[lenny8]

not to be mr. negative bot id be surprised if u don't tip at least once during regionals.

[V_Chip]

You might look into lowering your CG. However that will affect your entire configuration it seems

Originally Posted by Vector MycroftH

The ability to sit at the top of the hump and move laterally has the potential to be a great defensive advantage

Until a traction bot slams into a strafing robot and flips it. Keep in mind that Mecanums are insanely maneuverable, but can be pushed around by almost any other drive system.

Especially tracks.

[V_Chip]

However the other team may risk the consequence of a penalty. . . IF the contact is outside of bumper perimeter.

Good point though

[Rion Atkinson]

Originally Posted by CraigHickman

Until a tracked bot slams into a strafing robot and flips it. Keep in mind that Mecanums are insanely maneuverable, but can be pushed around by almost any other drive system.

Especially tracks.

That's where the fast eye comes in handy. And hand...

Basically, as long as you can see that it is coming, it should be to much of a problem.

[jason701802]

The CG will be significantly lower in the final bot, the electronics board is going to be at about the level of the bottom of the transmissions and there is a scoring mechanism going in as well. The electronics board was just put where it is to get our bot up and running so we can get some practice driving it.

Who can figure out what the plywood came from?

[vhcook]

I'm a little concerned by a couple of the hops your electronics rig took. I'd recommend restraining the battery a bit more, and giving the delicate parts on the cRIO some overhead protection in the event your driver or software doesn't pull off the save next time. I realize you're testing, but nothing on that board is a cheap replacement. If you roll the robot and weight ends up on, for example, the analog breakout, it will bend and/or break.

Originally Posted by Vector MycroftH

However the other team may risk the consequence of a penalty. . . IF the contact is outside of bumper perimeter.

Good point though

The bumper zone does not apply when on the bump.

Originally Posted by Formerly Famous

That's where the fast eye comes in handy. And hand...

Basically, as long as you can see that it is coming, it should be to much of a problem.

Ah, but as long as a defender is causing a team to focus on anything other than scoring, their job is successful.

Besides, all it takes is one solid push to tip a robot on the ramp over.

Jason-

Do you guys happen to have any footage of the bot driving around in the open? I always love seeing Mecanums systems drive, as they're always so fluid looking when they translate around.

[jason701802]

Originally Posted by vhcook

I'm a little concerned by a couple of the hops your electronics rig took. I'd recommend restraining the battery a bit more, and giving the delicate parts on the cRIO some overhead protection in the event your driver or software doesn't pull off the save next time. I realize you're testing, but nothing on that board is a cheap replacement. If you roll the robot and weight ends up on, for example, the analog breakout, it will bend and/or break.

As you may have noticed, we did have people running back and forth to help keep the bot from tipping. We actually did tip the bot during this testing (the spotters weren't paying enough attention), but luckily the only damage was one of the screws on the D-sub connector got bent. We are done testing over the bump until everything is in its final place.

Originally Posted by CraigHickman

Do you guys happen to have any footage of the bot driving around in the open? I always love seeing Mecanums systems drive, as they're always so fluid looking when they translate around.

sorry, i don't have any good footage of it running around in the open.

[Vikesrock]

Originally Posted by PaW

Nice save at the 1:40 mark! Speed control and driver practice will be key to avoid an "end over".

Looks like the robot almost flipped because it was put into reverse when the back end was up in the air.

[Fe_Will]

Originally Posted by CraigHickman

Until a tracked bot slams into a strafing robot and flips it. Keep in mind that Mecanums are insanely maneuverable, but can be pushed around by almost any other drive system.

Especially tracks.

We'll see how the tracks vs mecanum ends up Feb. 20th. I'm looking forward to seeing that little creation you've had a hand in. Until then, I like what 753 has been gracious enough to post (minus the near tip).