3D Printing Basics Quiz
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Questions and Answers

What is the recommended printing speed range for optimal accuracy?

  • 90-100mm/s
  • 10-20mm/s
  • 70-80mm/s
  • 50-60mm/s (correct)

    • The nozzle diameter for the model is 0.3mm.

    False

    What should the file name for the GCode in Cura only contain?

    English letters, underscore, and space

    The diameter of the selected wire is _____mm.

    <p>1.75</p> Signup and view all the answers

    Match the following components with their corresponding sizes:

    <p>Wire diameter = 1.75mm Nozzle size = 0.4mm Recommended print speed = 50-60mm/s</p> Signup and view all the answers

    Which mode in Cura allows you to see the toolpath and check for issues before printing?

    <p>Layers mode</p> Signup and view all the answers

    To enable uniform scaling in Cura, the lock in the scaling window should be clicked.

    <p>False</p> Signup and view all the answers

    What driver needs to be installed for online printing with Cura?

    <p>CH341SER</p> Signup and view all the answers

    What is the factory default voltage setting for the 3D printer?

    <p>220V</p> Signup and view all the answers

    Filament should be inserted into the hotend before preheating.

    <p>False</p> Signup and view all the answers

    What temperature range is ideal for filament to flow properly through the hotend?

    <p>180-190°C</p> Signup and view all the answers

    The main board wiring diagram is shown in Figure ___.

    <p>10</p> Signup and view all the answers

    Match the components to their installation steps:

    <p>Step 1 = Install the top Aluminum (AL-5) Step 2 = Preheat the hotend Step 3 = Cut off the bent tip of the filament Step 4 = Manually insert filament through Teflon tubing</p> Signup and view all the answers

    What should you do if you feel resistance while inserting the filament?

    <p>Rotate the filament.</p> Signup and view all the answers

    It is important to ensure that the filament reel is tangled before installation.

    <p>False</p> Signup and view all the answers

    What can customers use to remove extruded filament from the nozzle tip before printing?

    <p>Tweezers</p> Signup and view all the answers

    What is one recommendation for easier feeding of the filament?

    <p>Cut off the bent tip before inserting it</p> Signup and view all the answers

    The DMSCREATE DP-X 3D printer can resume from outage when printing online.

    <p>False</p> Signup and view all the answers

    What should you do if the filament is leaking too much?

    <p>Check if the nozzle or throat tube is tightened properly.</p> Signup and view all the answers

    To ensure adhesion of the first layer, the print platform should be kept _____ and the heat bed temperature should match the filament.

    <p>clean</p> Signup and view all the answers

    Match the troubleshooting issue with its potential cause:

    <p>Nozzle clogged = Replace or clean the nozzle Filament tangled on spool = Check for proper spool arrangement First layer doesn't adhere = Level the heat bed Filament flowing insufficiently = Measure the filament diameter</p> Signup and view all the answers

    Which of the following is NOT mentioned as a reason for the first layer not adhering?

    <p>Filament type not matching the model color</p> Signup and view all the answers

    You should always open the cooling for the first layer when printing with ABS filament.

    <p>True</p> Signup and view all the answers

    What is the recommended bottom layer print speed to ensure good adhesion?

    <p>Approximately 20 mm/s</p> Signup and view all the answers

    Which of the following is NOT a reason for gaps or hollows on the top layer of a printed model?

    <p>Insufficient withdrawal distance</p> Signup and view all the answers

    Setting the Fill value too low in the slicing software can cause gaps in the printed model.

    <p>True</p> Signup and view all the answers

    What is the first step in leveling the heat bed?

    <p>Adjust the 4 nuts under the platform</p> Signup and view all the answers

    The nozzle should always be lower than the platform when leveling.

    <p>False</p> Signup and view all the answers

    What should be checked if the print head is moving too fast?

    <p>Slow down the print speed.</p> Signup and view all the answers

    If the printing temperature is too high, it can lead to the model ___ because of melting.

    <p>melting</p> Signup and view all the answers

    What file extensions can be loaded into Cura?

    <p>STL, OBJ, DAE, AMF</p> Signup and view all the answers

    It is very important to ensure the flat portion of the model is well attached to the platform, so please use the ______ option after rotating the model.

    <p>Lay Flat</p> Signup and view all the answers

    Match the issue with its possible solution:

    <p>Grinding filament = Clean or replace the nozzle Hot end clogged = Manually feed the filament Nozzle clogged = Increase printing temperature Filament runs out = Check filament supply</p> Signup and view all the answers

    What is one consequence of setting the printing temperature too low?

    <p>Excessive temperature difference causing cracking</p> Signup and view all the answers

    How can you zoom in or out in Cura?

    <p>Use the mouse wheel</p> Signup and view all the answers

    Match the following actions in Cura with their corresponding descriptions:

    <p>Zoom in/out = Scroll the mouse wheel Change viewing angle = Right-click and move the mouse Position change = Left-click and drag the model Rotate = Click the rotate button on the model</p> Signup and view all the answers

    It is recommended to grease the rods and tighten nuts and bolts to prevent layer shifting.

    <p>True</p> Signup and view all the answers

    Name one reason for filament not extruding during the printing process.

    <p>Filament runs out</p> Signup and view all the answers

    You should adjust the Z adjustable nut only once during the leveling process.

    <p>False</p> Signup and view all the answers

    What should you do after loading a 3D model into Cura?

    <p>Clear the platform</p> Signup and view all the answers

    What could cause stripes or bulges on the surface during printing?

    <p>Z axis not straight</p> Signup and view all the answers

    A high printing temperature can lead to wrinkles on the surface.

    <p>False</p> Signup and view all the answers

    What is one potential cause of uneven extruding?

    <p>Hot end clogged</p> Signup and view all the answers

    Remove the SD card and insert into ___ to check if Gcode files are readable.

    <p>PC</p> Signup and view all the answers

    Match the printing issue with its potential cause:

    <p>Vibration = Printing speed is too fast Touch screen no response = Cables are loose Print stopped halfway = Gcode file is corrupted Extruding unevenly = Hot end clogged</p> Signup and view all the answers

    What is a possible solution to fix the issue of a touch screen not responding?

    <p>Check for loose cables</p> Signup and view all the answers

    If the motor makes abnormal sounds, the wiring connections should be inspected.

    <p>True</p> Signup and view all the answers

    What should you do if a print abruptly stops halfway?

    <p>Check if the Gcode file is corrupted</p> Signup and view all the answers

    Which type of laser is primarily used for cutting, boring, and engraving?

    <p>CO2 laser</p> Signup and view all the answers

    The Nd:YAG laser is primarily used for applications requiring low energy and high repetition.

    <p>False</p> Signup and view all the answers

    What is the classic wavelength of emission for CO2 lasers?

    <p>10.6 μm</p> Signup and view all the answers

    A CO2 laser provides a much lower electrical-to-optical conversion efficiency than ______ lasers.

    <p>Nd:YAG</p> Signup and view all the answers

    Match the types of lasers with their primary applications:

    <p>CO2 laser = Cutting and engraving materials Nd laser = Boring with high energy Nd:YAG laser = Very high power boring and engraving Fiber laser = Not mentioned in the content</p> Signup and view all the answers

    Which of the following is NOT a common use for CO2 lasers?

    <p>Printing textiles</p> Signup and view all the answers

    Lasers can only cut metal materials.

    <p>False</p> Signup and view all the answers

    What is one future scope for laser cutting machines mentioned?

    <p>Integrating design software to provide a GUI</p> Signup and view all the answers

    Study Notes

    3D Printer (Chapter 1)

    • Safety Instructions:

      • High temperatures are generated during operation, avoid touching the machine parts or extruded materials.
      • Allow printed objects to cool before handling.
      • Keep the printer in a well-ventilated area.
      • Be cautious with scrapers, do not point towards hands.
      • Protect the printer from water and rain.
      • Maintain operating temperature and humidity (8°C - 40°C, 20%-50%).
      • Use protective eyewear during cleaning/sanding of printed models.
      • Turn off the printer in emergency situations and consult for professional advice.
      • Do not modify or upgrade firmware unless necessary.
      • Never leave the printer unattended during operation.

    • Contents of Manual:

      • Part List 1
      • Product Overview 2
      • Menu Directory 3
      • Assembly Instructions 6
      • Leveling Instructions 13
      • Cura Instructions 18
      • Online Printing 26
      • Offline Printing 29
      • Change Filament 30
      • Resume From Outage 31
      • Trouble Shooting 33

    • Technical Specifications:

      • Printing Parameters:
        • Printing Volume: 300 x 300 x 400 (mm)
        • Layer Resolution: 0.05 - 0.3 mm
        • Positioning Accuracy: X/Y 0.0125 mm, Z 0.002 mm
        • Extruder Quantity: Single
        • Nozzle Diameter: 0.5/0.4/0.3/0.2 mm
        • Printing Speed: 10 - 180 mm/s (60 mm/s recommended)
        • Movement Speed: 100 mm/s
        • Printing Materials: PLA, ABS, HIPS, WOOD, PETG, etc.
      • Temperature Parameters:
        • Ambient Operating Temperature: 8°C - 40°C
        • Operational Extruder Temperature: up to 260°C
        • Operational Print Bed Temperature: up to 110°C
      • Software Parameters:
        • Slicing Software: Cura, etc.
        • Software Input Format: STL, .OBJ, .DAE, .AMF, etc.
        • Software Output Format: G-Code
        • Connectivity: SD card, USB (Expert users only)
      • Electrical:
        • Power Input: 110V/220V AC, 50/60Hz
        • Power Output: 24V 15A 360W
      • Physical Parameters:
        • Machine Size: 482mm x 551mm x 656mm
        • Net Weight: 12.8kg

    Assembly Instructions

    • Detailed step-by-step instructions for assembling the various components are provided (Fig. 1-10).
    • Includes diagrams for visual guidance.

    Leveling Instructions

    • Detailed instructions and diagrams on how to level the printing platform before printing ,(Fig. 13-16)
    • Explains how to adjust the nuts for proper surface-nozzle distance (typically about 0.1-0.2 mm).

    Cura Instructions

    • Installation: Steps on installing and configuring the Cura slicing software.

      • Provides guidance on selecting appropriate machine profiles and settings.

    • File Loading and Manipulation: Explains how to import 3D models, (Fig. 26-27) scale, reposition, and rotate 3D models within Cura for proper printing orientation.

    • Saving G-code: Instructions on saving the generated G-code files

    Online and Offline Printing Instructions

    • Offline Printing: Explanation of printing via SD card.
    • Online Printing: Details on how to connect the 3D printer to a PC through USB, and use printer control software.

    Troubleshooting

    • General Problems: A list of common problems and their potential solutions is provided.
    • Hot End Clogged: Troubleshooting steps for a clogged hot end.
    • Not Extruding: Troubleshooting steps for extruder problems.
    • Filling virtual filament: Troubleshooting steps for issues with filling virtual filament.
    • Printing Model Issues: Solutions for various print quality issues (e.g. gaps, stripes, rough surfaces).
    • Vibration: Solutions for issues with the 3D printer vibrating excessively during operation.

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    Description

    Test your knowledge on essential 3D printing concepts. This quiz covers topics such as printer settings, filament characteristics, and software usage in Cura. Perfect for beginners looking to solidify their understanding of 3D printing practices.

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