1678 Two Ball Auto
 

After a lot of work, we're proud to present our two ball auto routine!

https://goo.gl/photos/NLA2oktnyhnwoRjV7

Re: 1678 Two Ball Auto
 

I can't wait to see this happen in a match. So far this has seemed impossible. I'm optimistic that it isn't impossible.

Re: 1678 Two Ball Auto
 

Welp time to program this for our team. Nice job with your two ball auto!

Re: 1678 Two Ball Auto
 

Congratulations!!!

I was almost sure this would never happen. The depositing of the first ball is key here.

In respect of the Loch Ness Monster stickers of 2012, perhaps the 2-ball auto teams should get a big fat bench grinder sticker to place on their robot!

Re: 1678 Two Ball Auto
 

Thats insane Nice job guys

Re: 1678 Two Ball Auto
 

That's a nice bench grinder

Re: 1678 Two Ball Auto
 

Wish people would post pictures of their robot, for all I know this is a benchtop grinder shooting the balls

Re: 1678 Two Ball Auto
 

#TheLittleBenchGrinderThatCould
#TwoBallOrBust

Re: 1678 Two Ball Auto
 

Oh neat! You guys initiated the challenge this year ;)

Re: 1678 Two Ball Auto
 

Good to see we weren't the only ones with this idea. I had a feeling 1678 would be the ones to beat us to it! :D

Re: 1678 Two Ball Auto
 

While dropping the 1st ball helps in preventing another team from trying to steal or move the ball on the ball on the center line, it is not key to this auto.

The placement of that boulder on the center line is in a location that could hinder the other alliance from crossing a defense should they choose that, as the secret passage is directly in front and not a defense. So it comes down to do I stop them from scoring 10 points or do I score 10 points, also do I risk hitting them if we go for that ball at the same time?

Also awesome auto, though i don't think that bench grinder is a legal FRC robot.

Re: 1678 Two Ball Auto
 

Sigh... now our programmers are going to want us to build two practice bots too...

Well done. Not at all surprised that you guys made it happen.

Re: 1678 Two Ball Auto
 

Fantastic job as expected from 1678. Great job getting the timing down.

Re: 1678 Two Ball Auto
 

I don't think dropping the first ball is motivated by wanting to "steal" it from the opposing alliance. They're simply putting their starting ball in a place where they have significantly more leeway on the 2nd run without getting a penalty. Why risk trying to get within 2" of a spot after crossing defenses if you can be much more reliable doing it BEFORE you cross any defenses.

1678 looked at the problem, and found a way to solve it that should be significantly less risky. If they miss the 2nd ball on the way back, oh well, but at least they're much less likely to get a penalty while doing it. Pure genius, and major kudos.

P.S. How long until you can do 3? :-P

Re: 1678 Two Ball Auto
 

I still think the dropping of the first boulder is super key. If you shoot your starting boulder first, you run into a huge problem. How do you approach the midline with enough precision to grab that second boulder, but not get a penalty for crossing the midline in auto. That's a very tall order for a dead-reckoning or vision-tracking robot, which may not know where it is at all times.

Drop your starting boulder far away from the midline, and you don't have to be nearly as precise.