Go to Post Sometimes our greatest failures lay the foundations for our greatest success. - =Martin=Taylor= [more]
Home
Go Back   Chief Delphi > CD-Media > Photos
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

photos

papers

everything



57 Five Weeks In

Kevin Sevcik

By: Kevin Sevcik
New: 10-02-2013 19:38
Updated: 10-02-2013 19:38
Views: 2237 times


57 Five Weeks In

Five weeks in and all that's left is wiring up pneumatics and CAN, finishing some plumbing, and a whole lot of fancy programming. Don't tell anyone, but I think we're actually going to make it to a scrimmage this year.

Recent Viewers

  • Guest

Discussion

view entire thread

Reply

10-02-2013 19:54

AllenGregoryIV


Unread Re: pic: 57 Five Weeks In

Kevin,

Does you shooter change angle? Also I'm excited to have 57 at the Week 0 next week, please try to make it.

Allen



10-02-2013 19:55

inkspell4


Unread

Quote:
Originally Posted by AllenGregoryIV View Post
Kevin,

Does you shooter change angle? Also I'm excited to have 57 at the Week 0 next week, please try to make it.

Allen
It seems as though it does change angle as you can se pneumatic pistons bellow it



10-02-2013 19:57

AllenGregoryIV


Unread Re: pic: 57 Five Weeks In

Quote:
Originally Posted by inkspell4 View Post
It seems as though it does change angle as you can se pneumatic pistons bellow it
The two on the sides look to be for hanging unless they do both. I think there is a center post that might tilt it but it's hard to see in that picture.



10-02-2013 19:57

Chris is me


Unread Re: pic: 57 Five Weeks In

Looks simple and effective.

Any reason why those 10 point hanging hooks aren't completely passive? Could save yourself a little weight and time at the end of a match that way, though I am sure your solution is already fast (and it's a buzzer beater).



10-02-2013 20:23

Kevin Sevcik


Unread Re: pic: 57 Five Weeks In

Quote:
Originally Posted by AllenGregoryIV View Post
The two on the sides look to be for hanging unless they do both. I think there is a center post that might tilt it but it's hard to see in that picture.
The center post is indeed the angle changer. There's a 20:1 BAG versa at the base attached to a 1/2" 0.25 lead screw. Yeah, the 1/2" screw is a bit overkill, but we already had it and the nut in the shop.

Quote:
Originally Posted by Chris is me View Post
Looks simple and effective.

Any reason why those 10 point hanging hooks aren't completely passive? Could save yourself a little weight and time at the end of a match that way, though I am sure your solution is already fast (and it's a buzzer beater).
We're planning on shooting either from the far side or near side of the pyramid. For ranging and alignment we want to just run into the pyramid. A passive hanging system wouldn't have allowed that. If the active system gives us any problems we'll just bolt a passive hanger on.

The simplicity is thanks to designing and building within means. We graduated a lot of experienced seniors and had a lot of new students and mentors this year. Plus a lead mentor with a lot more time constraints due to a new son. So said lead mentor put some limits on what we could practically accomplish in our 6 weeks. As a result we're going to finish with time to spare for practice this year.



10-02-2013 21:00

Alan Anderson


Unread Re: pic: 57 Five Weeks In

That's a nice clean design. I like how spacious it is. I almost wish we hadn't had a 30" height restriction built in to our initial specifications, since it made finding room for all the electronics a bit of a challenge.

No floor loading? I wonder how many teams will make that decision work well, and how many will have problems with a floor-pickup-only design.

I do worry about the placement of your D-Link, though. It's awfully close to that last shooter motor, and potential interference is an issue.



10-02-2013 21:20

Kevin Sevcik


Unread Re: pic: 57 Five Weeks In

Quote:
Originally Posted by Alan Anderson View Post
That's a nice clean design. I like how spacious it is. I almost wish we hadn't had a 30" height restriction built in to our initial specifications, since it made finding room for all the electronics a bit of a challenge.

No floor loading? I wonder how many teams will make that decision work well, and how many will have problems with a floor-pickup-only design.

I do worry about the placement of your D-Link, though. It's awfully close to that last shooter motor, and potential interference is an issue.
Floor loading wasn't in the cards. If we added that system, we'd likely be wiring and programming in Week 7.

As for the radio, we can move it to the other side if it becomes a problem. You didn't see electrical's previous proposals which included buried in the nest of the main electrical board and just above the three Jags for the shooter.



11-02-2013 07:41

Pjohn1959


Unread Re: pic: 57 Five Weeks In

What? No ramps this year? I thought that was a Leopard tradition...



11-02-2013 09:05

Kevin Sevcik


Unread Re: pic: 57 Five Weeks In

I suggested it in brainstorming, but then people threw things at me. Apparently there ARE bad ideas in brainstorming.



11-02-2013 11:05

Pjohn1959


Unread Re: pic: 57 Five Weeks In

Quote:
Originally Posted by Kevin Sevcik View Post
I suggested it in brainstorming, but then people threw things at me. Apparently there ARE bad ideas in brainstorming.
LOL!



11-02-2013 13:28

lynca


Unread Re: pic: 57 Five Weeks In

I'm really excited to hang out with 57 at the Week 0 scrimmage this weekend !

The design looks simple and effective !
I spy a lowe's bucket under those leopard spots, we stuck with a home depot bucket for a while and eventually moved on to clear plastic sheet that works really well.

We went with a week 7 collector design that is still in the works ! So I can understand your decision in keeping things simple,

My first robot scrimmage was in high school at 57's shop in Houston, times have changed



11-02-2013 17:13

ChuckDickerson


Unread Re: pic: 57 Five Weeks In

Looks nice Kevin. Sure wish you guys were coming to Bayou again this year. It's hard to tell looking at the photo but are you sure your CRIO is isolated from the chassis? It sort of looks like it is bolted right to the metal bar. If so you might want to double check you don't have a chassis short to ground.



11-02-2013 17:44

Kevin Sevcik


Unread Re: pic: 57 Five Weeks In

Quote:
Originally Posted by DeepWater View Post
Looks nice Kevin. Sure wish you guys were coming to Bayou again this year. It's hard to tell looking at the photo but are you sure your CRIO is isolated from the chassis? It sort of looks like it is bolted right to the metal bar. If so you might want to double check you don't have a chassis short to ground.
It's actually mounted on that Lexan, but I'll admit I wasn't looking close at the back side when they mounted the whole electronics board to the robot. I'll electronics check that and work out a fix if it's making contact or risking doing so. Thanks for the catch.

EDIT:I'm assured it's an optical illusion caused by the angle I shot the picture from. The lexan sheet is a good inch or more away from that bar.



view entire thread

Reply
previous
next

Tags

loading ...



All times are GMT -5. The time now is 14:42.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi