[Ri3D] The Greenhorns

[jeremylee]

Very cool. Did you still have drop center?

[CalTran]

One question for now, probably more after I look through all your posted designs:

If members are a mixture of Bison and CIS, and "hosted" by ToolCats, where on earth does Greenhorn come from?

[Ginger Power]

Originally Posted by CalTran

One question for now, probably more after I look through all your posted designs:

If members are a mixture of Bison and CIS, and "hosted" by ToolCats, where on earth does Greenhorn come from?

The GreenHorns are a team made up primarily of members of Bison Robotics from NDSU. NDSU's colors are Green and yellow. The mascot is a bison. We are all freshman and sophomores in college. Our thinking was that Greenhorn which basically means rookie fit who we were to a T. Plus it sounded cool.

[CalTran]

Ah. That's a pretty sweet coming together for names!

[Ginger Power]

Originally Posted by CalTran

Ah. That's a pretty sweet coming together for names!

I originally wanted something way more terrible but when somebody said it we were all like "wow that just happened".

[Shu]

We are having trouble with our uprights separating and the elevator coming off track. I see that you captured your elevator upright with a set of rollers on each side of the upright. Did you just use a longer shoulder bolt between the 2 brackets? if so, how long?

[Ginger Power]

We actually used the stock bolts that came with the competition robot parts elevator kit. We simply didn't tighten them down all the way and they worked perfectly. If you are still having trouble with the uprights separating even after adding a second set of wheels on the other side of the upright I would recommend adding some sort of cross structure at the top of the uprights.

[Shu]

Thanks, we were looking at adding a cross brace but I wasn't sure if it will be enough.

[Ginger Power]

Originally Posted by jeremylee

Very cool. Did you still have drop center?

Yes and it was incredibly annoying to work with. We decided to keep 6 omni wheels because 4 wouldn't give us the clearance necessary to get over the bump. Because we had the drop center with strafe when we weren't moving our robot would balance and wouldn't be able to move because the drive wheels didn't have enough traction (our strafe wheel was 3/16" lower than our outside wheels). We solved with by making the front of our Robot ridiculously heavy (battery+ almost all mechanical components). We didn't think we had enough time to put the center wheel on a pneumatic cylinder which is what I would recommend for teams who are looking to do a slide drive. Don't do slide with drop center!