Edit

Note Viewer


Cargo 2019

Attendance

Note Info

Students
Mentors
Date & Time
Location & Author
  • 1/9/2019

  • 3 hours

  • Aquiferland

  • Solomia D.

Guests

+ Shashank


Work Completed

- finished the frame of the prototype, fitted with plastic and omni wheels on the top and small wheels on the bottom. the top was 10" off of the ground, and the offset between the top and bottom wheels was 8" horizontally

- hooked motors up to said prototype and ran it (video in drive). we discovered a few things:

  • intake is very smooth - the ball gets sucked right in, even without traction on the wheels
  • outtake is a different story: without a back plate pushing the ball forward, it just kinda bounces around inside of the mechanism

 

Challenges

we debated whether mechanum wheels are a whorthwhile pursuit. 

  • pros: centers the ball, making alignment with the rocket easier. 
  • cons: they are heavy, and they require our entire wheel set-up to be 4" hard wheels, which are also heavy
  • Solo will look into dimensions for various field elements to see what percent of the intake would be a "dead zone" (aka, if the robot is centered to the element and when the ball is fed out it wouldnt make it into the goal)

in addition, we don't actually have many tread wheels with tread on them, so we either need to make more, or simulate them in another way

Work for Next Meeting

 

- discuss the findings for dead zones

- intake some balls into the current prototype and see what percentage ends up in said "dead zones"

- create a few more bars with different wheel set-ups: compliant, similar to bottom bar, omnis on the sides. for all of these, get a hex shaft the same width as the one currently housing the tread/omni set-up, and evenly space 8-10 4" wheels or large number (however many fit) of small wheels along it, with spacers in between and a pulley on one side for the belt/motor. 

- if we have time, test said set-ups

 

On Schedule?

yes