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-   -   [FTC]: FTC Block Party! Official Thread (http://www.chiefdelphi.com/forums/showthread.php?t=119058)

Scott_4140 09-09-2013 21:31

Re: [FTC]: FTC Block Party! Official Thread
 
Quote:

Originally Posted by Nuttyman54 (Post 1290681)
For what it's worth, you can only physically fit 27 blocks in each bin if you stack them perfectly (3x3x3 cube). In practice, I found that around 19-20 can be dropped in before they start falling out. Now..the way they define "Inside" is within the vertical projection of the object, so you could theoretically continue stacking blocks on top and if they don't fall off or extend beyond the projection of the walls of the pendulum bins they still count.

In practice, I would say that if you're careful you could realistically get 25 per bin.

Interesting. I only did two quick tests.

Stacking blocks I too got 3x3x3 for 27 blocks.

On the second test, I gently tossed blocks in from the side. 8 settled in nice and flat on the bottom. Then the next 2 sat on an angle between two of the base rows of blocks and supported by the first 8. I continued to toss blocks one at a time and it settled out with a pattern that allowed me to toss 35 blocks with 33 locking into the bin. After that they would slide off the stack.

Your mileage may vary! It all depends on how the first blocks start stacking on the bottom tier of blocks.

DanielH 10-09-2013 15:10

Re: [FTC]: FTC Block Party! Official Thread
 
I really like this challenge.

Because of the variety of ways in which a robot can score points this year (the bar, the flag, blocks, and autonomous) I feel that a number of strategies will emerge.

For example, a team could play defense the entire match, and then score both the flag and on the bar.

Or, a team could entirely focus on scoring blocks for the entire match.

Or, a team could make a 60 point autonomous (by scoring your cube in the beacon basket and parking on the ramp) and then play defense.

This is opposed to last year, where hanging as many rings as possible was the only viable strategy (lifting just didn't seem to be worthwhile enough last year).

16skittles 10-09-2013 16:59

Re: [FTC]: FTC Block Party! Official Thread
 
Quote:

Originally Posted by DanielH (Post 1290796)
I really like this challenge.

Because of the variety of ways in which a robot can score points this year (the bar, the flag, blocks, and autonomous) I feel that a number of strategies will emerge.

For example, a team could play defense the entire match, and then score both the flag and on the bar.

Or, a team could entirely focus on scoring blocks for the entire match.

Or, a team could make a 60 point autonomous (by scoring your cube in the beacon basket and parking on the ramp) and then play defense.

This is opposed to last year, where hanging as many rings as possible was the only viable strategy (lifting just didn't seem to be worthwhile enough last year).

An autonomous of at least 50 points seems to be really simple, if you have the equipment. (I don't know what the toolkits of most teams look like, but last year our team did not have the IR sensor) I imagine a side-mounted dedicated module that holds one block, as well as the IR sensor. It would drive forward until it detects the IR, line up, and deposit the block. Then it could go forward, turn 90 degrees and go forward until it hits the center line, turn a little farther then follow the line up the bridge. My biggest concern is that robots would collide and mess up the autonomous for both bots on the alliance. But I hope to get a 50 point, but with contitions on the bridge who knows if it's going to be possible every time.

ftcTeam6389 08-10-2013 13:36

Re: [FTC]: FTC Block Party! Official Thread
 
If your team is considering some sort of "grappling hook" design to lift your bot, and you're thinking of launching it from your bot over the pullup bar, think again. The FTC officials put the kibosh on that idea on their forum here...

http://ftcforum.usfirst.org/showthre...ull=1#post7285

- FTC Team #6389

donnaorozco 09-10-2013 12:50

Re: [FTC]: FTC Block Party! Official Thread
 
I was wondering if corner braces were allowed as appropriate building material in this years FTC challenge. The manual states that fasteners and structural materials are allowed, but there is no specific rule for corner braces. If not would an individual have to make their own from raw materials or is there another alternative?

These are the braces we would like to use: http://www.homedepot.com/p/Everbilt-...2#.UlWJCtKsjTo

Many thanks!
Team 6169
The countdown to world domination has begun......


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