pic: Team 1523 Shooter + Video

[Tim Arnold]

[cdm-description=photo]22906[/cdm-description]

[BoyWithCape195]

What motor is that running the shooter?

[Alex Cormier]

I watched the video and i am totally impressed, great job guys!

[Rickertsen2]

Thats really awesome. Its really great to see some other non-pitching machine shooters.

[Arefin Bari]

Nice shooter M.A.R.S. Can't wait to see you guys in person next saturday.

[Rich Wong]

That video was extremely cool!
The design is excellent!

Thanks for the preview.
:)

[Joel J]

Very nice.

[Dan Petrovic]

Wow

That's really impressive. I wasn't expecting to see anyone using a catapault assembly for their launching mechanism.

[Tim Arnold]

Thanks all for your kind words!

What motor is that running the shooter?

We are using the van door motor to turn the arm.


Nice shooter M.A.R.S. Can't wait to see you guys in person next saturday.

Thanks and we are all looking forward to the scrimmage! Is there any official information from team 179 about the event for this year?

[b-rant]

you've got my props! very impressive

[cire]

Very very impressive! I didnt think anyone would be able to find a quick way to do it.

[Alekat]

Is there a mechanical way you got the arm to move slow grabbing the ball and fast throwing it? Or is it done with a sensor and programming? I don't think I have to tell you how awesome your robot is. everyone else did a good job of it.

[663.keith]

I believe the change in speed is due to the surgical tubing stretching and contracting

[Greg Marra]

Thanks and we are all looking forward to the scrimmage! Is there any official information from team 179 about the event for this year?

Indeed.

http://www.chiefdelphi.com/forums/showthread.php?threadid=43614

[BoyWithCape195]

Indeed.

http://www.chiefdelphi.com/forums/showthread.php?threadid=43614

He was speaking of 179's yearly event down in Florida, not WWZ :cool:

But Indeed

http://www.chiefdelphi.com/forums/showthread.php?t=42736

ha ha

[Arefin Bari]

Is there any official information from team 179 about the event for this year?

According to Tytus,

February 18th... from 1 p.m. till 4 p.m. at the Swampland.

Inlet grove high school
7071 Garden Road
Riviera Beach, FL 33407

[Joe Johnson]

You must be using a one-way roller clutch so that the rubber band can over run the van door motor. Very clever.


Lets the elastic take over when it needs to.
Doesn't require an elaborate catch.
Rapid firing without complex sequencing issues.
Allows the "follow through" of the arm to partially wind the arm for the next toss.
van door motor starts rewind automatically when the arm slows down
Beautiful!

I had my doubts about the feasability of making a rapid fire catapult.

But, you ave done a great job, one that I think has a chance to compete with the pitching machine solutions.

Well done.

Joe J.

[nuggetsyl]

how far back were you shooting from in the video

shaun

[spamified88]

Wow, that is a really cool shooting mechanism! How did you come up with that idea? Did you base it off of a batting cage launcher?

[Chris_Elston]

Great job guys.

The only comment I have though.


I don't know much about measuring with a radar gun, are you suppose to measure the ball on coming into the radar gun or away from the radar gun?

It looked to me in the video you are measuring your Poofy Balls as it was leaving the range of your radar gun.

Which way should it be or more accurate to make sure the reading you are getting from the gun is indeed what it says it is?

[Eldarion]

Great job guys! Very impressive! :yikes:

[Eric Scheuing]

Wow. That's very impressive. I have one question though.

How does it load? Does the belt you have load into something, or is it incomplete?

[d.courtney]

very cool shooting mechanism (do I smell innovation award)

[TriggsJr]

REALLY COOL

Can you change the distance it can fire

are you going to use the camera to aim.

This is a great rapid fire machine.

[rocknthehawk]

i'm jealous!

NOT of the shooter (which looks really good!), but of the fact that you're wearing shorts!

[miketwalker]

Very nicely done, I didn't think that catapults could come out with a rapid-fire. I can't wait to see it when you guys tweak it and work out the accuracy bugs. Just be careful with the surgical tubing since over time it doesn't pull as hard, which will change how fast your motor pulls those balls up over time. Great job guys.

[phrontist]

This is by far the coolest shooter I've seen mechanically. Can you fire from multiple distances?

[LightWaves1636]

Awesome shooter! I really love the design and idea. The best use of a catapult ever!

[Mike AA]

It appears you have exceeded your bandwidth limit on your website? This I cant watch :(

If you would like it hosted at another location I can host the file for you, or there is also mediaputfile I believe it is?

-Mike Aalderink

[Scott Morgan]

It took me a while but I was able to figure it out without seeing the video
but i would really like to see it in action
looks awesome

[EricRobodox]

Im with Eric Scheuing on this, How will it get balls during comp? Throwing into that hole seems hard.

I love the throw on this thing. Reminds me of Mythbusters when they built the card throwing thing. Very cool.

[Matt Gent]

-the loader shown is a prototype. Balls will be collected from the ground via the belt mechanism and/or thrown into a basket (not shown) which feeds the loading tube.
-roller bearings with integral clutching are used for the arm
-not sure which video was posted but most of them were shot at about 20' range.
-trajectory angle is not adjustable in-match. It could be, but we're not trying to. Properly tuned it can score from a wide range of distances from target without adjustment
-in order to aim, the driver and/or camera need to aim the entire bot.
-the radar gun was behind the launcher. They work in either direction. Can't speak to the accuracy of this gun at this speed range though.

[Tim Arnold]

It appears you have exceeded your bandwidth limit on your website? This I cant watch :(

If you would like it hosted at another location I can host the file for you, or there is also mediaputfile I believe it is?

-Mike Aalderink

Thanks for the offer but I have been working on this issue all day. Basically our web host was reporting us going over bandwidth limits... every hour. Eventually I figured out that I had not removed unneeded accounts after our domain name change (kickbot1523.com to marsbot.org - might not be much shorter but easier to remember I think). The bandwidth was being doubled as the new domain was active on both accounts (don't ask how, I would like to know as well).

Regardless, I believe the problem is finally fixed. We also had a brief period of downtime while the DNS updated from the old account to the new one (again, don't ask why this happened in the first place). A friend has mirrored the video (http://funtimenetwork.com/shooting.wmv) with an unlimited bandwidth account.

I apologize to anyone who wanted to watch our video during our technical difficulties!

[Mike AA]

Thanks for the offer but I have been working on this issue all day. Basically our web host was reporting us going over bandwidth limits... every hour. Eventually I figured out that I had not removed unneeded accounts after our domain name change (kickbot1523.com to marsbot.org - might not be much shorter but easier to remember I think). The bandwidth was being doubled as the new domain was active on both accounts (don't ask how, I would like to know as well).

Regardless, I believe the problem is finally fixed. We also had a brief period of downtime while the DNS updated from the old account to the new one (again, don't ask why this happened in the first place). A friend has mirrored the video (http://funtimenetwork.com/shooting.wmv) with an unlimited bandwidth account.

I apologize to anyone who wanted to watch our video during our technical difficulties!

Thanks, Looked at your site earlier this afternoon and got the video, quite the interesting setup! My offer is there incase something happens and you need additional bandwidth/storage. I literally have over 1TB or storage at my server's disposal.

-Mike

[Tim Arnold]

Thanks, Looked at your site earlier this afternoon and got the video, quite the interesting setup! My offer is there incase something happens and you need additional bandwidth/storage. I literally have over 1TB or storage at my server's disposal.

-Mike

Wow. I am guessing this is a local dedicated server, nice. Well, if you don't mind putting it on there I would be happy to link to it :p . My previous post was basically in general as an update for everyone (I hope I wasn't rude - rather frustrated at the time).

Anyway, if you are interested that would be great. Instead of filling up this thread perhaps you could email me (timarnold[AT]adelphia.net). I am also curious by what you mean by "interesting setup" :yikes: .

EDIT: Actually... I could give you a better quality version too if you wish. Perhaps we can work something out :) .

[MarsBOtkid]

wOW tim this is a very kool website we are getting alot of posts 4 our bot so weet :D

[MarsBOtkid]

how far back were you shooting from in the video

shaun

In the video we were shooting from about 20 feet

[MarsBOtkid]

bye the way tim its kyle :ahh:

[Kyle Love]

I wonder if there will be anyother catapults? :confused:

[carmen]

looking good!!!!!
what is your drive - train?
What is your basic strategy?- aim higheror bottom feed?
what are you guys better at defense or offense?
what are you doing during autonomous mode?

[Tim Arnold]

looking good!!!!!
what is your drive - train?
4 wheel drive (makes turning difficult, we need to replace front wheels with something slicker)

What is your basic strategy?- aim higheror bottom feed?
Well we can do both so it dosen't really matter... at the scrimmage yesterday we discovered that our lift uses the most power of anything on our bot. We basically relied on human loading as much as we could.
what are you guys better at defense or offense?
I would say offense in that we don't have the strongest drive train ever. One benifit to both sides however, is that our release point is about at 4.5 feet. At the scrimmage yesterday only one of our shots was blocked. We did get pushed around a little bit though.

what are you doing during autonomous mode?
Well.. as of now, nothing. Our programmers have their work cut out for them, as we were hoping to utilize the camera to get into position and fire in the beginning of the match. They make it sound like we will not be able to do that, but time will tell.

If you want to see the video of our robot in action at 179's scrimmage, check out http://www.chiefdelphi.com/forums/pictures.php?action=single&picid=12958