pic: FRC971 Spartan Robotics Presents: Renegade

[kevincrispie]

Originally Posted by Sh1ine

Very nice robot.

We also use belts for our drive train. This is our second year using them and as for a a skid steer type drive train is concerned I do not think we will ever go back. We use live axles in our system. It seems like you are using a dead axle system with the sprockets machined directly into your wheels (very cool). I would love to see a up close and personal view of how your power transmission works.

Sprockets (or pulleys I should say, for this is timing belt) are not machined directly on. They are locktighted on the wheel and obtained from SDP-SI. Directly machining those pulleys would take too much out of our resources.

[James Kuszmaul]

Originally Posted by AlecMataloni

Thank you for the information! Do you know the part numbers for the cylinders and the fittings offhand?

Check here. We used a .313 long stroke, and I can't remember what bore size we have off the top of my head. Probably 9/16 or 3/4.

[NickCrispie]

Here's a photo of our Robot competing at the Sacramento Regional. As you can see, we made a few changes in between taking our reveal shot and competing at the competition.

We hope to make some improvements and be even better at SVR.

[roystur44]

Originally Posted by ttldomination

Vids are private?

Would love to see this thing in action.

- Sunny G.

Take a look at this short video


http://www.youtube.com/watch?v=5aYv5RF2Arg

Man, Renegade looks better and better by the video. That's some of the fastest 3 point shooting I've seen. I'm hoping we get to play with 971 in a few of our matches at SVR. I can see this robot going right to the top.

[Jared Russell]

Originally Posted by roystur44

http://www.youtube.com/watch?NR=1&fe...&v=XkkmNhyo-X8

Some interesting background shots there

Great robot!

[BJC]

Hmmm, 4:57 and 6:04 were pretty unexpected, but I guess they are unveiling week 5 anyways. Looks like a narrow robot with a pretty slick over the bumper collector and a high shooter (probably turreted) Sweet..

Edit: narrow because the fender sticks out 38ish inches.

Originally Posted by BJC

Hmmm, 4:57 and 6:04 were pretty unexpected, but I guess they are unveiling week 5 anyways. Looks like a wide robot with a pretty slick over the bumper collector and a high shooter (probably turreted) Sweet..

How do you get that from the video? I've watched those segments about 20 times myself, and though I see bits of it, I can't tell too much from it.

[Tom Bottiglieri]

Originally Posted by BJC

Hmmm, 4:57 and 6:04 were pretty unexpected, but I guess they are unveiling week 5 anyways. Looks like a narrow robot with a pretty slick over the bumper collector and a high shooter (probably turreted) Sweet..

Edit: narrow because the fender sticks out 38ish inches.

Yes, Yes, No.

[BJC]

Originally Posted by Tom Bottiglieri

Yes, Yes, No.

Not turreted? well I suspect you wouldn't really need it anyways (If that is indeed what you are saying no to.) Good luck at your first competition this year.

Regards, Bryan

[roystur44]

Here's a little video of practice for Champs:

Shooting practice:

http://www.youtube.com/watch?v=kTVE8c_mgoI


Behind the glass:
http://www.youtube.com/watch?v=p32DlVbJpFw

[Mark Sheridan]

Originally Posted by roystur44

Here's a little video of practice for Champs:

Shooting practice:

http://www.youtube.com/watch?v=kTVE8c_mgoI


Behind the glass:
http://www.youtube.com/watch?v=p32DlVbJpFw

Whoa! That is some great accuracy! Looks to me 100%?

[Nuttyman54]

Originally Posted by Mark Sheridan

Whoa! That is some great accuracy! Looks to me 100%?

That was one of our best runs, but we have been hitting 90%+ over the past few days. There is also no camera tracking running in that video, that's pure video feedback to the driver station, and Scott doing what he does best. There may be camera tracking in St. Louis, which could further reduce the cycle time.

[Siri]

Awesome shooting! How do you like the steering wheel for driving control? And is it just the wheel or are the other buttons/pedals/something involved?

[Jared Russell]

Originally Posted by Siri

Awesome shooting! How do you like the steering wheel for driving control? And is it just the wheel or are the other buttons/pedals/something involved?

Given this team's history (and programming mentors), I am guessing that this is their driving arrangement ("Cheesy Drive"):

1. A wheel (you can also use the X axis of a joystick) for turning
2. A throttle
3. A quick turn button

When you are not holding down the quick turn button, the wheel and throttle let you control the bot like a car (in other words, constant radius turns independent of your throttle power, which is hard to do with arcade or tank setups).

When you hold down quick turn, you can turn in place (the wheel becomes like a standard X axis in an arcade drive).

But again, just a guess