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Unread 23-02-2013, 00:57
z_beeblebrox's Avatar
z_beeblebrox z_beeblebrox is offline
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AKA: Cal
FRC #4183 (Bit Buckets)
Team Role: Alumni
 
Join Date: Jan 2012
Rookie Year: 2012
Location: Cambridge MA
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4183 2013: Murphy's Lawyer

So, we built a robot. We love it very much. We will share our love for it at the Arizona and Las Vegas regionals and, hopefully, World Championships.

Video

Drivetrain:
Vex Pro Drive in a Day
6 4" Vex Pro Traction Wheels
4 CIMs in Vex Pro Ball Shifters
Geared for about 15 and 7 ft/s
Can easily push any team member in low gear
Robot is below 30" tall

Disc acquisition, storage:
Shooter tilts down for floor intake
Primarily human loaded
Stores 4 discs in bucket hopper

Shooting:
Linear shooter
2 8" AndyMark pneumatic wheels directly driven by CIM and miniCIM
Pneumatic cylinder pops discs out of bucket into shooter
Fires at least 1.5 discs per second
Adjustable angle and wheel speed
Can shoot much farther than full court
Not bagged with robot; have 4 weeks to improve it before AZ regional

Hanging:
10 Point Hang
2 pneumatic cylinders lift robot and retract to let us go under the pyramid

Control System:
254-inspired "Cheesy Drive" with custom pistol-grip RC controller
Gyro for driving straight, encoders for speed measurement
Shooter angle controlled by PID controller with input from potentiometer
Shooter speed controlled by bang-bang controller with input from optical encoders
3+ disc autonomous

More features coming, as we have 3.5 weeks to work on our shooter and software.

I'll get some photos up tomorrow, unless GUI or TheOtherGuy would be so kind as to post some
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2012 Utah Regional Rookie All-Star
2013 Phoenix Regional Judge's Award for "design process and prototyping"
2014 Hub City Regional Quality Award, Arizona Regional Excellence in Engineering Award
2015 Arizona East Regional Creativity Award, Winner
2016 Arizona North Regional Finalist, Arizona West Excellence in Engineering Award, Finalist
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Unread 23-02-2013, 17:37
z_beeblebrox's Avatar
z_beeblebrox z_beeblebrox is offline
Custom User Title
AKA: Cal
FRC #4183 (Bit Buckets)
Team Role: Alumni
 
Join Date: Jan 2012
Rookie Year: 2012
Location: Cambridge MA
Posts: 811
z_beeblebrox has a reputation beyond reputez_beeblebrox has a reputation beyond reputez_beeblebrox has a reputation beyond reputez_beeblebrox has a reputation beyond reputez_beeblebrox has a reputation beyond reputez_beeblebrox has a reputation beyond reputez_beeblebrox has a reputation beyond reputez_beeblebrox has a reputation beyond reputez_beeblebrox has a reputation beyond reputez_beeblebrox has a reputation beyond reputez_beeblebrox has a reputation beyond repute
Re: 4183 2013: Murphy's Lawyer

Here's the best photo I found:
http://www.chiefdelphi.com/media/photos/38717?
__________________
2012 Utah Regional Rookie All-Star
2013 Phoenix Regional Judge's Award for "design process and prototyping"
2014 Hub City Regional Quality Award, Arizona Regional Excellence in Engineering Award
2015 Arizona East Regional Creativity Award, Winner
2016 Arizona North Regional Finalist, Arizona West Excellence in Engineering Award, Finalist

Last edited by z_beeblebrox : 23-02-2013 at 17:43.
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