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4613 Offseason Minibot #1

pilleya

By: pilleya
New: 07-11-2017 06:22 AM
Updated: 07-11-2017 06:22 AM
Views: 947 times


4613 Offseason Minibot #1

The Barker Redbacks first offseason project, a minibot built over the past few months for the Australian Duel Down Under Offseason competition.

Without bumpers the robot is approximately 19x16x15" and 32lb.

Please keep all questions/discussion in this thread.

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07-11-2017 08:45 AM

marshall


Unread Re: pic: 4613 Offseason Minibot #1

Can we get a pic next to a banana for scale? Or maybe a koala?



07-11-2017 08:46 AM

notmattlythgoe


Unread Re: pic: 4613 Offseason Minibot #1



Is there any video of this on the field with other robots?



07-11-2017 08:52 AM

TheBoulderite


Unread Re: pic: 4613 Offseason Minibot #1

Aw, what a cute little robot.



07-11-2017 08:55 AM

pilleya


Unread Re: pic: 4613 Offseason Minibot #1

Quote:
Originally Posted by notmattlythgoe View Post
Is there any video of this on the field with other robots?
The competition was livestreamed and the footage is available here:

Day 1( Practice)

Day 2( Quals)

Day 3( Quals+Elims)

Here is some footage of the robot in action, listen to the great commentary if you can!

Day 3 1:12 in (thanks Matthew)

Day 3 2:36 in



07-11-2017 09:10 AM

Thayer McCollum


Unread Re: pic: 4613 Offseason Minibot #1

It looks really fun to drive! How fast does it go?



07-11-2017 09:10 AM

EdgarAlenPoe


Unread Re: pic: 4613 Offseason Minibot #1

It's so small, how does it even fit a control system?



07-11-2017 09:19 AM

pilleya


Unread Re: pic: 4613 Offseason Minibot #1

Quote:
Originally Posted by Thayer McCollum View Post
It looks really fun to drive! How fast does it go?
Drivetrain Specs:

-Single CIM per side( 2 total)

-12:40 reduction

-3.5" Colsons wheels(4)

-9mm belt to outer wheels

-Geared for 25fps



07-11-2017 09:22 AM

notmattlythgoe


Unread Re: pic: 4613 Offseason Minibot #1

OMG ITS SO CUTE



07-11-2017 09:38 AM

fergus180


Unread Re: pic: 4613 Offseason Minibot #1

Quote:
Originally Posted by EdgarAlenPoe View Post
It's so small, how does it even fit a control system?
Well with difficulty the pdp is underneath the battery mount. The motor controllers are sort of spread wherever there was room so mostly next to the pdp on the left and right (there only needs to be five) the VRM fits on top of one of the drive tubes along with the radio. The roborio was then strapped on top of the battery in a protective case we had made for our comp bot. of course there was no room for pneumatics so we didnt have to worry about them.


Sorry for the low quality.



07-11-2017 10:43 AM

JesseK


Unread Re: pic: 4613 Offseason Minibot #1

How many times did your drivers lose it in traffic during elims?



07-11-2017 11:48 AM

TheBoulderite


Unread Re: pic: 4613 Offseason Minibot #1

Quote:
Originally Posted by notmattlythgoe View Post
DAWWWWWW!!!!!!!!!! WOOK AT THAT WIDDLE WOBOT!!!!!!!!!



07-11-2017 12:35 PM

araniaraniratul


Unread Re: pic: 4613 Offseason Minibot #1

Holy $@#$@#$@#$@#, I thought our 58lbs 24x24 was a little bit nuts. This is sooo coool!



07-11-2017 01:03 PM

gorrilla


Unread Re: pic: 4613 Offseason Minibot #1

Sneaky boy



07-11-2017 01:08 PM

Ryan Dognaux


Unread Re: pic: 4613 Offseason Minibot #1

What a cool off-season project! You really need to watch the match to see just how small it is, fantastic.



07-11-2017 01:11 PM

bbensel


Unread Re: pic: 4613 Offseason Minibot #1

I think my new favorite thing is watching it zip across the field at 2x speed. That and watching it climb.



07-11-2017 01:26 PM

Leap


Unread Re: pic: 4613 Offseason Minibot #1

I want five of these for a tiny robot army.



07-11-2017 02:13 PM

RoboChair


Unread Re: pic: 4613 Offseason Minibot #1

Copy Cats >_>



07-11-2017 02:17 PM

Aren_Hill


Unread Re: pic: 4613 Offseason Minibot #1

Quote:
Originally Posted by RoboChair View Post
Copy Cats >_>
What was that Devin? hmm?


(I love that this robot exists and think you should ship it up to Chezy Champs, and by ship it, I mean carry on luggage)

-Aren



07-11-2017 02:21 PM

RoboChair


Unread Re: pic: 4613 Offseason Minibot #1

Quote:
Originally Posted by Aren_Hill View Post
What was that Devin? hmm?


(I love that this robot exists and think you should ship it up to Chezy Champs, and by ship it, I mean carry on luggage)

-Aren
But that was your Season robot. But I do like this bot. Great learning experience in Engineering.



07-11-2017 02:41 PM

frcguy


Unread

Quote:
Originally Posted by Aren_Hill View Post
What was that Devin? hmm?


(I love that this robot exists and think you should ship it up to Chezy Champs, and by ship it, I mean carry on luggage)

-Aren

Dude... this one actually fits in a Vex sizing box...



07-11-2017 03:29 PM

Justin Foss


Unread Re: pic: 4613 Offseason Minibot #1

This is awesome. Any chance you'd be willing to post the CAD up online?



07-11-2017 03:46 PM

ollien


Unread Re: pic: 4613 Offseason Minibot #1

Quote:
Originally Posted by pilleya View Post
Drivetrain Specs:

-Single CIM per side( 2 total)

-12:40 reduction

-3.5" Colsons wheels(4)

-9mm belt to outer wheels

-Geared for 25fps
What's the gearing on the climber? Is that 2x2 box tubing I spy on the drive rails?



07-11-2017 04:06 PM

Jjmase123


Unread Re: pic: 4613 Offseason Minibot #1

I love this mini-bot. Just imagine if 2015's rules were still in play ... all the mini bots. While you're at it, why not make another mini-bot, this time with swerve. That would be pretty awesome. I already wanna make one like this



07-11-2017 07:15 PM

414cnewq


Unread Re: pic: 4613 Offseason Minibot #1

Specs on Intake?



07-11-2017 07:38 PM

pilleya


Unread Re: pic: 4613 Offseason Minibot #1

Quote:
Originally Posted by ollien View Post
What's the gearing on the climber? Is that 2x2 box tubing I spy on the drive rails?
-Climber is a 775pro geared 30:1 with a 1.25" spool( about 1.375" after velcro)

-Good catch, the drive rails are 60x50x3mm tube. These drive rails contain the 12:40 gear reduction as well as room for 9/15mm belts.

Quote:
Originally Posted by 414cnewq View Post
Specs on Intake?
-12mm Polycarbonate sides

-3mm Polycarbonate spatula

-BAG with a 12-48t GT2/3 reduction powering 2-3/8 in T40 wheels( they slightly compress which is nice).

-Raised and lowered by a BAG+VersaPlanetary using a dyneema cord winch with a limit switch at the top position.



07-11-2017 11:18 PM

EdgarAlenPoe


Unread Re: pic: 4613 Offseason Minibot #1

This is actually now my favorite robot design.



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