Pre-Stop Build Scrimmages - What Have We Learned So Far?

[Steven Donow]

Originally Posted by nikeairmancurry

It was raining frisbees!

You miss 100% of the shots you don't take

[joelg236]

As expected, 30 point climbs are rare.

[Garten Haeska]

Originally Posted by joelg236

As expected, 30 point climbs are rare.

We had one here in the week zero i attended in Minnesota, it took a good minute and 20 seconds for them to reach from the bottom to the top.

[joelg236]

Originally Posted by Garten Haeska

We had one here in the week zero i attended in Minnesota, it took a good minute and 20 seconds for them to reach from the bottom to the top.

Correction: Fast 30 point climbs are rare.

[PVCpirate]

Very few robots picking up from the floor at Suffield Shakedown. My old team is working on a very reliable pickup system, and we anticipate it being a big advantage at GSR. I thought it was great seeing solid teams like 2168 and 177 avoiding the big row of frisbees at midfield like the plague.

[ehfeinberg]

Originally Posted by stevend1994

You miss 100% of the shots you don't take

You best not be stealing my signature!

But in all seriousness, I am scared. A lot of discs from the human player hit near the pyramid. If a robot was attempting a 30 point climb, that could be something to watch for.

[Gregor]

3 bolts per wheel on a dead axel setup isn't a good idea.

[DELurker]

Originally Posted by Gregor

3 bolts per wheel on a dead axel setup isn't a good idea.

Can you give a little more detail on that? It sounds like a good learning moment ... and probably a really entertaining video or photo set...

[FRC BOTMOM]

Any teams that just went for the 30pt climb and were successfull?

[Gregor]

Originally Posted by DELurker

Can you give a little more detail on that? It sounds like a good learning moment ... and probably a really entertaining video or photo set...

First of all, excuse my typo of axle, which I can't edit now.

We are running a 6-wheel drive with a 1/8 drop on the centre wheel, with AM performance wheels geared quite aggressively for 15 and 7 ft/second (calculated including efficiency loss). Performance wheels are threaded for 10-32. Each wheel had 3 grade 8 10-32 bolts in them.

About 10 minutes into driving yesterday, we noticed VERY limp chain. Upon closer examination, we found that the entire sprocket assembly had sheared off of the middle wheel. All 3 bolts had sheared. We promptly replaced the wheel with the bolts ends lodged in with our spare, pulled all the wheels off, and added 3 more bolts to each wheel.

Today I drove just as aggressivly, and we haven't had any issues (at least not with the drivetrain ). I suspect they sheared when I was braking while downshifting, but I'm not sure.

[joelg236]

Originally Posted by ehfeinberg

A lot of discs from the human player hit near the pyramid. If a robot was attempting a 30 point climb, that could be something to watch for.

Interesting. Do you think this would fall under G16? How could you tell if it was intentional or not? I guess its under the discretion of the refs, but it seems like this could be a pretty big factor, especially for teams who assume nothing will contact them while climbing.

[ehfeinberg]

Originally Posted by joelg236

Interesting. Do you think this would fall under G16? How could you tell if it was intentional or not? I guess its under the discretion of the refs, but it seems like this could be a pretty big factor, especially for teams who assume nothing will contact them while climbing.

You would be hitting your own robots, so i don't think G16 would apply.

[joelg236]

Originally Posted by ehfeinberg

You would be hitting your own robots, so i don't think G16 would apply.

Not sure how I didn't think about that.

[Samwaldo]

we were so worried that there wouldn't be enough Frisbee on the ground to pick up. our robot was built practically around the pick-up because we worked so hard and were so dedicated to picking up. After seeing webcasts we know that a pick up will for SURE work out and be beneficial! it took awhile for teams to drive and load to and from the feeding zone. also alot of missed shots and alot of human players throws made it look like it was snowing.

Lastly i saw a few teams angling their shooters extremely high and shooting into the 5pt goal right next to the pyramid. none went in.

[nikeairmancurry]

Originally Posted by Samwaldo

Lastly i saw a few teams angling their shooters extremely high and shooting into the 5pt goal right next to the pyramid. none went in.

Not true.