Mitul Aggarwal
Competition Top 5 Switzerland

VEX Robotics

Competition robot design - Top 5 Switzerland

Robotics / Mechanical Engineering

Robotics Mechanical design Competition strategy Iterative testing

The story

Every VEX season is the same trap: you can always add one more mechanism, and it will always make the robot less reliable. As captain, most of my job wasn't designing the cleverest robot - it was talking the team out of building it.

Why I built it

The rules, the field, and the clock never move, so a robot that is slightly less ambitious but never breaks mid-match beats one that can theoretically do more.

What I built

We built around a drivetrain and one or two mechanisms we could make bulletproof, then spent the rest of the season on autonomous routines and driver practice instead of chasing new features.

What I did

  • Captain and lead engineer
  • Designed the drivetrain and the game-specific mechanisms
  • Wrote the autonomous routines
  • Ran driver practice and match strategy

How I built it

Build flow

Game analysis -> concept design -> prototype -> test -> competition iteration loop.

How it works

The robot paired a simple, reliable drivetrain with a small number of well-tested mechanisms, refined match to match based on what actually broke rather than what looked impressive on paper.

Hardware

VEX V5 system Custom-built mechanisms

Software

Robot programming Autonomous routines

What was hard

  • Mechanisms that worked in practice but failed under match stress
  • Knowing which features to cut when time ran short
  • Keeping autonomous routines reliable across different field conditions

Demos and build notes

Results & impact

  • ✓ Top 5 in Switzerland in our first competitive year
  • ✓ Consistent match performance instead of a robot that only worked in practice

What I'd tell past me

  • A robot that does less but never breaks beats one that does more but sometimes doesn't
  • Driver practice mattered as much as anything I designed

If I keep going

  • Bring the same design-for-reliability mindset into university robotics projects