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ROBO 201: Anatomy of Motion Systems

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Full course content (video lessons, exercises, downloadable files, and QR references) is part of Pro.

The preview above gives you the full course structure, learning outcomes, prerequisites, and what you will be able to do after completion. Free for everyone.

  • ✓Video lessons with real 3D printing setups
  • ✓Calibration parameters
  • ✓Downloadable STL examples + gcode profiles
  • ✓AI tutor for questions
  • ✓Completion certificate
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The motor is the heart of every 3D printer. This course explains the three core types – stepper, servo and BLDC – and identifies when each technology delivers real value in additive manufacturing.

What you will learn

  • Operating principle of a hybrid stepper motor
  • Microstepping, current control and resonance
  • Stepper drivers – A4988, TMC2208, TMC2209, TMC5160
  • Closed-loop servo motors and position errors
  • BLDC motors and their use in high-speed printers
  • Calculating torque requirements for a specific axis
  • Thermal behaviour and driver cooling

Course outline

  • Lesson 1: Electromagnetics fundamentals for operators
  • Lesson 2: Stepper motors – NEMA17, NEMA23 and their parameters
  • Lesson 3: Microstepping and StealthChop vs SpreadCycle
  • Lesson 4: Closed-loop – servo and closed-loop stepper
  • Lesson 5: BLDC adoption in CoreXY high-speed machines
  • Lesson 6: Torque calculation for X, Y, Z and extruder
  • Lesson 7: Diagnostics – skipped steps, resonance, overheating

Prerequisites

Basic electrical knowledge and ideally a completed course-fdm101-basics for context.

Outcome

You select the right motor and driver for a printer upgrade, diagnose positional issues and tune current settings without losing steps.

Who it is for

Technical engineers who run upgrades or maintain a printer fleet, designers of new printer machines, and mechatronics students.