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Citrus Circuits

Iterating a Design

2023 and 2024 Intakes

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Emma

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  • 2023-25 Drive Team
  • 2024 Intake Designer
  • 2025 Design Lead

Matt

​

  • Mechanical Engineer
  • 10 year Mech/Strat coach

Who Are We?

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  1. 2023 Intake
    1. Early concepts
    2. Design pivot
    3. Iteration
  1. 2024 Intake
    1. Under-bumper
    2. Design pivot
    3. Iterations

Outline

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2023 Intake

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Outline

January 14, 2023

  • Original design was a “pinball flipper” with a top roller to push in cubes.

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Outline

January 16, 2023

  • Worked against a wall, struggled with open-field cones

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Outline

January 16, 2023

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Outline

January 17, 2023

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Outline

January 21-22, 2023

  • Early prototypes of Everybot intake

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Outline

January 21-22, 2023

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Outline

January 29th, 2023

  • First design of the intake after prototyping
  • Three rollers, power from carriage base

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Outline

January 29th, 2023

  • Roller height off ground was critical for cones.
  • This height controlled directly from motor torque
  • Bounced a lot

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Outline

January 29th, 2023

  • On the side, experimented with a kicker roller

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Outline

February 13th, 2023

  • Dead axle front roller set up
  • As few rollers as possible (reduce weight and complexity)

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Outline

February 18th, 2023

  • All dead axles to reduce weight
  • Second 2” roller instead of single 4” roller to keep cones from tipping

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Outline

February 18th, 2023

  • Starting to panic about wrist problems and power transfer�
  • Looking back at the pinball flipper�
  • Maybe it works better at a downwards angle? (No)

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Outline

February 18th, 2023

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Outline

February 19th, 2023

  • Experimenting with two rollers for less required torque from motor

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Outline

February 25th, 2023

  • Nowhere near beefy enough

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Outline

February 28th, 2023

  • Remove lightness, add reliability

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  • Replaced round tube with square�
  • Moved motor to intake plate

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2024 Intake

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Outline

January 11th, 2024

  • Alpha OTB. Just sketched something that looked right.

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Outline

January 14th, 2024

  • Original comp over-the-bumper intake design. (based on Alpha)

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Outline

January 15th, 2024

  • Pivot to UTB
    • Based mostly on community hype
    • No prototyping involved
      • Assumed we could learn everything we needed from OA
      • Spoilers: huge mistake

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Outline

January 24th, 2024

  • Under the bumper hype

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Outline

January 24th, 2024

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Outline

January 24th, 2024

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Outline

February 4th, 2024

  • Ole Ironsides
  • Solid 5/16” AL plate to survive impacts

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Outline

February 14th, 2024

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Outline

February 15th, 2024

  • Pointed nose to protect rollers
  • “under-under-bumper”

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Outline

February 20th, 2024

  • large 1" tube shaft deadaxle through the upper front roller, and a 3/8" dead axle shaft through the lower front roller

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Outline

March 1st, 2024 (SVR Friday)

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Outline

March 3rd, 2024 (SVR Sunday)

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Outline

March 8th, 2024

  • Switched to 6mm polycarbonate + 1/16” aluminum plates�
  • Aluminum would buckle when PC bent

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Outline

March 10th, 2024

  • Removed some AL at the tip to protect from buckling

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Outline

Bonus: OCt 14th

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Outline

Any questions?

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Outline

Thank You!