MOBILE ROBOTS / DELIVERY ROBOT

CourierExplore what it takes to carry more.

Courier adds a cargo tray and a starting payload of 1 kg to a mobile platform. Explore a practical engineering tradeoff: how much battery and motor effort does your design need when the useful load changes?

Build with Courier Explore the design

Includes assembly, starter wiring and executable virtual JavaScript.

ASSEMBLY PREVIEW/DELIVERY

Courier · Delivery robot concept illustration; the 3D preview uses the actual preset geometry

Static illustration · loading 3D

Orbit the actual starter assembly. Open the workbench to edit or run it.

20components

43starter connections

1.56 kgestimated component mass

Virtual controller + AIcontrol platform

Courier · Delivery robot, an illustrated mobile robots assembly

Concept illustration · inspect actual geometry above.

A COMPLETE STARTING POINT

Get to know
what's inside.

A delivery platform with a cargo tray and a 1 kg starting payload. All 20 components and 43 starter connections remain editable in your own project.

Payload comparisonsDelivery robot conceptsMotor and battery sizing studies

View the included component types

Rover chassis
2S battery · 2.2 Ah
5 V buck regulator
Robot controller
AI compute module
Emoji OLED display
MEMS microphone
Mini speaker
Dual H-bridge
Geared DC motor · 35:1
Rubber wheel · 90 mm
Ball caster
RGB camera
Forward range sensor
6-axis IMU
Wheel encoder
Cargo tray

The preset also starts with 1 kg of environmental payload, separate from the estimated component mass above.

YOUR FIRST THREE EXPERIMENTS

Build understanding.
One change at a time.

Use the starting assembly to ask better questions about your design. Save a copy, change a parameter and compare what happens.

Inspect the design

Change payload in the environment and compare acceleration and current draw.

Try a change

Inspect how cargo tray mass contributes to the complete assembly.

Compare and learn

Compare source voltage, traction demand and obstacle-avoidance behavior under load.

delivery-rover.jsVIRTUAL API

function step(robot) {
  robot.drive(0, 0);
  if (robot.brownout || robot.battery.voltage < 6.25) { robot.display('🪫'); return; }
  const range = robot.sensors.range;
  if (!Number.isFinite(range)) { robot.display('⚠️'); return; }
  const obstacle = range < 0.65;
  robot.drive(obstacle ? -0.3 : 0.6, obstacle ? 0.35 : 0.6);
  robot.display(obstacle ? '🤔' : '😊');
}

The full, editable starter script is included in the workbench.

KNOW WHAT YOU'RE TESTING