Chief Delphi - Team 2383 Shooter Prototype Video

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Robot Showcase (http://www.chiefdelphi.com/forums/forumdisplay.php?f=58)

- - Team 2383 Shooter Prototype Video (http://www.chiefdelphi.com/forums/showthread.php?t=124506)

brrian27

11-01-2014 21:45

Team 2383 Shooter Prototype Video

Check out our initial shooter prototype. Let me know what you think!

http://www.youtube.com/watch?v=0u_NDY-npwc

Rick Wagner

11-01-2014 21:47

Re: Team 2383 Shooter Prototype Video

I like it. Lots of power.

Bryce Paputa

11-01-2014 22:09

Re: Team 2383 Shooter Prototype Video

How is it powered?

Nathan Streeter

11-01-2014 22:56

Re: Team 2383 Shooter Prototype Video

Now that's a lot of power!

How's accuracy looking for scoring high goals?

falconmaster

11-01-2014 23:45

Re: Team 2383 Shooter Prototype Video

Very nice! I am jealous!

dirkleton

12-01-2014 00:02

Re: Team 2383 Shooter Prototype Video

Nice build for a proto-type!

How wide is it at the widest point?
Can you fit within the starting dimensions? Or do you have some extending mechanism?

jsasaki

12-01-2014 09:04

Re: Team 2383 Shooter Prototype Video

should be wearing saftey glasses, especially with a fast wheeled shooter prototype. ::ouch:: but other than that, looks great!

TheJoe

12-01-2014 11:41

Re: Team 2383 Shooter Prototype Video

Looks great!

What is the approximate weight of the prototype?

brrian27

12-01-2014 16:36

Re: Team 2383 Shooter Prototype Video

Thanks for all the compliments everyone!

Quote:

Originally Posted by Bryce Paputa (Post 1325785)

How is it powered?

It is powered by 1 CIM motor on each side (so two total) through a belt internally.

Quote:

Originally Posted by Nathan Streeter (Post 1325799)

How's accuracy looking for scoring high goals?

We haven't done a lot of comprehensive testing, but it seems pretty accurate from about 8 feet away.

Quote:

Originally Posted by dirkleton (Post 1325836)

How wide is it at the widest point?
Can you fit within the starting dimensions? Or do you have some extending mechanism?

The shooter is about 28" from end to end, but with the wheels the widest point is about 34".

To fit this inside the robot when starting, we decided on a circular base with a 35" diameter.

Quote:

Originally Posted by jsasaki (Post 1325895)

should be wearing saftey glasses, especially with a fast wheeled shooter prototype. ::ouch::

Oops! Probably a good idea! :D

Quote:

Originally Posted by TheJoe (Post 1325931)

What is the approximate weight of the prototype?

It is about 38 lbs, I think. But that is just a base frame and shooter.

safiq10

12-01-2014 19:40

Re: Team 2383 Shooter Prototype Video

Wow! thats great!

Ether

12-01-2014 22:17

Re: Team 2383 Shooter Prototype Video

Quote:

Originally Posted by brrian27 (Post 1325771)

Check out our initial shooter prototype. Let me know what you think!

Could you post a couple of close-up photos* of what the ball looks like after it's been through the wringer a few times?

* preferably with a camera that has a macro setting so the focus is sharp

brrian27

12-01-2014 22:25

Re: Team 2383 Shooter Prototype Video

Quote:

Originally Posted by Ether (Post 1326197)

Could you post a couple of close-up photos* of what the ball looks like after it's been through the wringer a few times?

Here's a photo of the damage. (Hopefully the quality is good enough! I had to take everything from my phone yesterday, sorry.) That's tape over some of the more noticeable gashes. No pops yet though.

We've been using 6" treaded wheels and I noticed little pieces of the blue fabric sticking from each contacting edge of the wheel. I'm hoping that we try the smooth gray wheels from Andymark this week, and that causes less damage. Plus right now, the CIMs are just going full power as we haven't done the electrical/programming yet, so hopefully at a lower speed it will be better too.

CheerlessBear

12-01-2014 22:43

Re: Team 2383 Shooter Prototype Video

Are you using pneumatics to push the ball into the shooter? And how do you plan to load the robot?

brrian27

13-01-2014 09:47

Re: Team 2383 Shooter Prototype Video

Quote:

Originally Posted by CheerlessBear (Post 1326216)

Are you using pneumatics to push the ball into the shooter? And how do you plan to load the robot?

Yeah, there's a pneumatic piston in the back. The loading is done by just putting the wheels in reverse at a low speed and lowering the shooter to the ball.

neshera

13-01-2014 09:55

Re: Team 2383 Shooter Prototype Video

If you're going to lower the shooter to the ball, will you raise up to one pre-defined height to shoot, or do you want to try for variable angles so as to shoot from a wider range of distances?

brrian27

13-01-2014 18:14

Re: Team 2383 Shooter Prototype Video

Quote:

Originally Posted by neshera (Post 1326355)

If you're going to lower the shooter to the ball, will you raise up to one pre-defined height to shoot, or do you want to try for variable angles so as to shoot from a wider range of distances?

Right now it is working best at around 45 degrees, but we haven't done any extensive testing of angles yet.

WaterClaw

13-01-2014 18:41

Re: Team 2383 Shooter Prototype Video

Quote:

Originally Posted by brrian27 (Post 1325771)

Check out our initial shooter prototype. Let me know what you think!

http://www.youtube.com/watch?v=0u_NDY-npwc

Check the spin you put on the ball. It looks to me like the source of your inaccuracy. Unless, since you were outside, the wind caught it.

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