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Worksheets3D Printing Fundamentals and Techniques
Total questions: 20
Worksheet time: 10mins
What are the recommended preheating temperatures for the nozzle and hotbed when printing with PLA filament?
Nozzle 195°C, Hotbed 60°C
Nozzle 200°C, Hotbed 50°C
Nozzle 180°C, Hotbed 70°C
Nozzle 220°C, Hotbed 55°C
Why is 3D printer filament often sealed in a plastic package?
To make it easier to transport.
To keep moisture out of the filament.
To protect it from physical damage.
To prevent it from tangling.
Before loading 3D printer filament, what should you do to its tip?
Heat it slightly to make it flexible.
Cut it at a 30-degree angle to create a sharp tip.
Clean it with a damp cloth.
Bend it into a hook shape.
After loading new filament, why is it important to extrude some material before starting a print?
To test the printer's speed.
To clean out any leftover filament or protective coating from the nozzle.
To make the filament stick better to the print bed.
To check the filament's color accuracy.
When calibrating the nozzle-to-bed distance using a piece of paper, what is the ideal feel when moving the paper?
The paper should move freely without any resistance.
The paper should be completely stuck and unable to move.
The paper should be loose but just tight enough to feel resistance.
The paper should tear slightly when pulled.
What type of file is needed to start a 3D print?
PDF file
JPEG file
STL file
MP4 file
What is the primary function of a slicer program in 3D printing?
To design 3D models from scratch.
To convert 3D model files into instructions for the printer.
To monitor the printer's temperature and speed.
To share 3D models online.
Which three dimensions are crucial to set correctly in the slicer software for a 3D printer?
Length, Width, and Height
X, Y, and Z
Depth, Breadth, and Altitude
Horizontal, Vertical, and Diagonal
Which build plate adhesion type is recommended for better model adhesion to the print plate?
Skirt
Raft
Brim
None
Why should the print bed be cleaned with isopropyl alcohol before starting a 3D print?
To make the print stick less to the bed.
To remove any debris or dirt for better adhesion.
To change the color of the print.
To speed up the printing process.
What motion does the X-axis control in a 3D printer?
Forward and backward
Up and down
Left and right
Rotating the print bed
Which part usually moves along the Y-axis during printing?
Nozzle
Print bed
Extruder motor
Controller
What direction does the Z-axis control?
Left and right
Up and down
Forward and backward
Spinning the filament
What is the print bed used for in a 3D printer?
To heat the filament
To control the printer settings
To build and stick the print on
To push filament into the nozzle
What is the “brain” of the 3D printer where all the parts connect?
Hotend
Controller
Heater block
Cooling fan
What pushes the filament into the hotend for printing?
Bowden tube
Heater cartridge
Extruder
Thermistor
What is the tube called that guides filament in a Bowden style extruder?
Heat break
Bowden tube
Part cooling fan
End stop
What part melts the plastic filament so it can be deposited?
Nozzle
Print bed
Extruder motor
Controller
Why is the heat break important in the hotend?
It cools the filament after printing
It prevents heat from traveling too far up the hotend and clogging
It pushes filament into the nozzle
It controls the temperature of the print bed
What do end stops or limit switches do in a 3D printer?
Heat the filament before printing
Mark the home position and stop axis movement when reached
Cool the hotend
Control the print speed
