Chief Delphi - Four in the air at one time

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

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

- - Four in the air at one time (http://www.chiefdelphi.com/forums/showthread.php?t=112062)

bfk	25-01-2013 22:35

Four in the air at one time

So over here at 2521 we got our hopper and trigger prototypes working this afternoon.
We could fire four frisbees in about 3 seconds.
After we put up the target we could hit three out of four.

Did you ever notice that a Home Depot bucket holds Frisbees perfectly?

shank948

25-01-2013 23:38

Re: Four in the air at one time

How fast are you running the wheel? (rpms)

Andrew Lawrence

25-01-2013 23:38

Re: Four in the air at one time

Is that a 1-wheeled linear shooter?

PVCpirate

26-01-2013 00:18

Re: Four in the air at one time

Quote:

Originally Posted by Andrew Lawrence (Post 1222006)

Is that a 1-wheeled linear shooter?

I don't think so, if you watch the second video it looks like there's some curve to it.

wilful

26-01-2013 00:49

Re: Four in the air at one time

Quote:

Originally Posted by Andrew Lawrence
Is that a 1-wheeled linear shooter?

In our testing with a linear shooter, we found that one wheel actually produced a more stable flight than a two wheel linear shooter.

Andrew Lawrence

26-01-2013 00:53

Re: Four in the air at one time

Quote:

Originally Posted by wilful (Post 1222040)

In our testing with a linear shooter, we found that one wheel actually produced a more stable flight than a two wheel linear shooter.

Really? What wheels did you use? What speed? Can anyone else confirm this?

bfk	26-01-2013 01:30

Re: Four in the air at one time

Quote:

Originally Posted by shank948 (Post 1222005)

How fast are you running the wheel? (rpms)

We don't have an encoder on it yet, so I don't know the RPM, but in these shots it's running the CIM at about 90% power, direct drive onto the pneumatic wheel.

Quote:

Originally Posted by Andrew Lawrence (Post 1222006)

Is that a 1-wheeled linear shooter?

No it's about 90 degree curve.

MrRiedemanJACC

26-01-2013 08:25

Re: Four in the air at one time

Love the mechanism to hold back the stacked frisbee.

ctccromer

27-01-2013 00:05

Re: Four in the air at one time

Quote:

Originally Posted by bfk (Post 1221982)

Did you ever notice that a Home Depot bucket holds Frisbees perfectly?

Yep! We discovered that today too and after brutally mutilating it to exactly fit our robot, it's now... well, part of our robot.
We were able to shoot 4 frisbees in about the same speed, maybe SLIGHTLY slower by turning two cim motors with pneumatic wheels attached and using a window motor with L-bracket attached to push frisbees into our two wheels. On the controller, x moves the window motor forward and y moves it backwards, so quickly spamming xyxyxyxy means we shoot 4 frisbees extremely fast, and they ALL hit EXACTLY the same spot, not counting mistakes caused by human error (still prototyping)

bfk	27-01-2013 01:09

Re: Four in the air at one time

Quote:

Originally Posted by ctccromer (Post 1222586)

Excellent. I look forward to the no doubt soon-to-be-posted video.

Three weeks in and wishing we were further ahead, but then that's always the case at this point.

tickspe15

20-02-2013 14:34

Re: Four in the air at one time

We found the same thing our 1 wheel linear shooter has been very powerful and accurate, and is easily shooting full court. With an 8 inch pneumatic wheel direct driven by a cim

All times are GMT -5. The time now is 19:40.