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Module 2: Machine Setup & Calibration

Duration: 3 hours | Microcredential: MCCPDL-U01M2-v1.0

Module Overview

This module develops hands-on competency in printer hardware configuration and calibration. Students learn to perform bed leveling (feeler gauge and BLTouch methods), load filament safely, configure temperature profiles, tune the first layer for optimal adhesion, and verify mechanical alignment. All activities occur on operational printers, with instructor supervision for safety.

Learning Objectives

  1. Perform manual bed leveling to ±0.1mm tolerance using feeler gauge method
  2. Load and unload filament without cross-threading or material waste
  3. Configure and test nozzle and bed temperature profiles for specific materials
  4. Diagnose and correct first-layer adhesion issues (level, temperature, speed)
  5. Verify printer mechanical alignment (frame square, axes moving smoothly)
  6. Establish and execute a preventive maintenance checklist

Module Structure

  • Slides: 5 presentations (Bed Leveling Theory, Filament Loading, Temperature Tuning, First Layer Optimization, Alignment & Maintenance)
  • Activities: 3 hands-on labs (Bed Leveling Exercise, Filament Load/Unload, First Layer Test Print)
  • Assessment: 10-question quiz + practical competency checklist
  • Common Pitfalls: 4 troubleshooting scenarios
  • Safety Protocols: 2 procedures (Filament handling, thermal safety during calibration)
  • Student Materials: 3 reference guides (Leveling Checklist, Temperature Profile Sheet, Maintenance Log)
  • Discussion Guides: 2 facilitated discussions (Calibration trade-offs, Printer maintenance philosophy)
  • Neurodiverse Accommodations: 4 learning profile adaptations

Key Concepts

  • Bed Leveling: Achieving 0.1mm clearance between nozzle and bed across entire build platform
  • First Layer Height: Most critical parameter for print success; determines adhesion quality
  • Temperature Profiles: Material-specific settings accounting for ambient conditions and printer hardware variations
  • Mechanical Alignment: Ensuring all axes move smoothly and frame remains square
  • Filament Path: From spool through drive mechanism to hot end; identifying potential jam points
  • Preventive Maintenance: Regular cleaning and inspection to prevent failures

Time Allocation

Segment Duration Activity
Introduction & Safety Review 10 min Thermal hazard, tool safety
Slide 1: Bed Leveling Theory 20 min Presentation + discussion
Activity: Bed Leveling Hands-On 40 min Supervised leveling on real printer
Break 10 min —
Slide 2: Filament Loading 15 min Presentation + demonstrations
Activity: Filament Load/Unload 30 min Load new material, unload used material
Slide 3: Temperature Profiles 20 min Presentation + material data sheet review
Slide 4: First Layer Tuning 15 min Presentation + live printer demo
Activity: First Layer Test Print 40 min Execute leveling calibration print
Q&A & Assessment Preparation 15 min Review, address questions, introduce quiz

Assessment Strategy

  • Formative: In-module 10-question quiz (70% threshold)
  • Practical Competency: Bed leveling verification (instructor checks ±0.1mm tolerance on all corners and center)
  • Filament Handling: Successfully load filament without air bubbles or cross-threading (instructor observation)
  • First Layer: Print successful first layer test print with good adhesion across 70%+ of platform

Standards Covered

  • ANSI/ISO 52901:2020: Machine setup and configuration per manufacturer specifications
  • ISO 52911-1:2019: Tolerance and precision requirements for FDM machines

Prerequisites

  • Completion of Module 1 (FDM Technology Fundamentals)
  • Understanding of basic thermoplastic properties (Tg, CTE, moisture sensitivity)
  • Familiarity with printer components (from M1 activities)

Resources Needed

  • Operational FDM printer (Prusa, Creality CR-10, Ultimaker, or equivalent)
  • Feeler gauges (0.1mm thickness; set of 5-10 gauges)
  • Thermal imaging camera or non-contact thermometer (2-3 per lab)
  • Filament samples (PLA, PETG, ABS; 5-10 meters each)
  • Nozzle cleaning tools (brass brush, plastic scraper, cotton swabs)
  • Digital calibration print file (MatterHackers leveling test or similar)
  • Maintenance supplies (IPA, paper towels, nozzle cleaning kit)

Success Criteria

  • Bed leveling: All four corners and center verified to within ±0.05mm of target height
  • Filament loading: No air bubbles in extrusion, smooth feed, proper tension
  • Temperature profile: Nozzle and bed temperatures achieve set values ±2°C
  • First layer: 70%+ of platform has good plastic adhesion without excessive squish
  • Maintenance: Student completes and documents one full maintenance cycle
  • Assessment: Score ≥70% on knowledge quiz; pass practical competency checklist

Next Steps

  • Module 3: Slicing Software & Print Preparation (translate design files to printer commands)
  • Advanced elective: Multi-material printing, nozzle swapping, enclosure setup

Last Updated: 2026-03-18 Maintained By: MCC Prototype Design Lab