Tracked gel blaster robot

An STM32-based tracked robot that combines a tracked chassis, a gel-bead launcher and an embedded control system. A two-axis servo turret handles aiming and a motor-driven module feeds the launcher. It was built for engineering demos, control experiments and prototype validation.

Tracked metal chassis with a white 3D-printed launcher on a servo turret, blue battery pack and acrylic electronics enclosure, on a workbench with a hopper of yellow gel beads and a bench power supply
On the bench with the bead hopper fitted

Tech stack

Main controller
STM32 series
Drive
Tracked chassis, dual DC motors, differential steering
Turret
2-axis servo system
Launcher
Motor-driven gel-bead feeding module
Wireless
2.4 GHz remote, serial command expansion
Power
Dual supply for motors, launcher and control electronics
Firmware
STM32 program for motor, servo and launcher control plus remote/serial communication; expandable to app or PC control

What we built

  • Mechanical design: chassis design and machining, rotating turret structure
  • Circuit design
  • Embedded device code for drive, turret aiming and launcher feed
  • Tracked drive system and launcher drive integration

Development time

15 days

Photos and design files

Closer angled view of the tracked robot showing the servo turret, wiring and acrylic electronics enclosure, with lab equipment behind
Turret, battery and electronics stack
High-angle view of the tracked robot on a blue workbench mat, with the yellow gel-bead hopper on the launcher and tools around
Top-down on the workbench
Angled view of the tracked robot's turret, battery and acrylic electronics stack in front of bench equipment
Turret and electronics, angled

All builds →

Building something similar?

Review my project

Or email [email protected] · WhatsApp +1 (323) 719-3730