Printer calibration basics in 3D Printing - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is printer calibration in 3D printing?

Printer calibration is the process of adjusting the 3D printer's settings to ensure it produces accurate and high-quality prints.

beginner

Why is bed leveling important in printer calibration?

Bed leveling ensures the print surface is flat and at the correct distance from the nozzle, which helps the first layer stick well and prevents print failures.

intermediate

What does extruder calibration involve?

Extruder calibration involves adjusting the amount of filament the printer pushes out to make sure the right amount is used, avoiding over or under extrusion.

intermediate

How can you check if your printer's X, Y, and Z axes are calibrated correctly?

You can print a calibration cube and measure its dimensions. If the cube matches the expected size, the axes are calibrated properly.

beginner

What is the role of temperature calibration in 3D printing?

Temperature calibration sets the right nozzle and bed temperatures for the filament used, which affects print quality and adhesion.

What is the first step in printer calibration?

A Changing filament color

B Calibrating the extruder

C Adjusting print speed

D Leveling the print bed

Leveling the print bed is usually the first step to ensure the print surface is flat and ready.

Why do you print a calibration cube?

A To check printer axis accuracy

B To test filament color

C To clean the nozzle

D To measure print speed

A calibration cube helps verify if the printer's X, Y, and Z axes are producing accurate dimensions.

What happens if extruder calibration is off?

A The printer will move slower

B The print bed will be uneven

C The filament may be over or under extruded

D The nozzle temperature will drop

Incorrect extruder calibration causes too much or too little filament to be pushed out, affecting print quality.

Which temperature is important to calibrate for good adhesion?

A Nozzle temperature

B Both A and C

C Bed temperature

D Room temperature

Both nozzle and bed temperatures affect how well the filament sticks to the bed and the overall print quality.

What tool can help with bed leveling?

A Feeler gauge or paper

B Ruler

C Screwdriver

D Caliper

A piece of paper or a feeler gauge is commonly used to check the gap between the nozzle and the bed during leveling.

Explain the main steps involved in calibrating a 3D printer.

Think about what needs to be adjusted to get accurate and good quality prints.

Describe why printer calibration is important for successful 3D printing.

Consider what happens if the printer is not calibrated well.

Practice

1. What is the main purpose of calibrating a 3D printer?

easy

A. To ensure prints are accurate and reliable

B. To change the printer's color settings

C. To increase the printer's speed only

D. To update the printer's software

Solution

1. Step 1: Understand calibration meaning

   Calibration adjusts printer settings to improve print quality and accuracy.

2. Step 2: Identify main goal of calibration

   The goal is to make prints accurate and reliable, not just speed or color.

3. Final Answer:

   To ensure prints are accurate and reliable -> Option A

4. Quick Check:

   Calibration = Accurate prints [OK]

Hint: Calibration means making prints accurate and reliable [OK]

Common Mistakes:

• Confusing calibration with software updates
• Thinking calibration only changes print speed
• Assuming calibration changes print colors

2. Which step is NOT part of basic 3D printer calibration?

easy

A. Bed leveling

B. Nozzle height setting

C. Extrusion tuning

D. Changing filament color

Solution

1. Step 1: List common calibration steps

   Bed leveling, nozzle height, and extrusion tuning are key calibration steps.

2. Step 2: Identify unrelated option

   Changing filament color is not a calibration step; it's a material choice.

3. Final Answer:

   Changing filament color -> Option D

4. Quick Check:

   Calibration ≠ Changing filament color [OK]

Hint: Calibration adjusts printer settings, not filament color [OK]

Common Mistakes:

• Mixing filament changes with calibration steps
• Thinking color affects calibration
• Ignoring extrusion tuning as calibration

3. If a 3D printer's nozzle is set too high above the bed during calibration, what is the likely print result?

medium

A. The print will be perfectly smooth

B. The printer will print faster

C. The first layer will not stick well to the bed

D. The filament will over-extrude

Solution

1. Step 1: Understand nozzle height effect

   Nozzle too high means filament can't properly stick to the bed.

2. Step 2: Predict print outcome

   First layer adhesion will be poor, causing print failures or warping.

3. Final Answer:

   The first layer will not stick well to the bed -> Option C

4. Quick Check:

   Nozzle too high = Poor bed adhesion [OK]

Hint: Nozzle too high means filament won't stick well [OK]

Common Mistakes:

• Assuming print speed changes with nozzle height
• Confusing extrusion amount with nozzle height
• Expecting perfect prints despite wrong nozzle height

4. A user notices their 3D prints are too thin and fragile. Which calibration step should they check and possibly adjust?

medium

A. Extrusion multiplier or flow rate

B. Bed leveling

C. Nozzle temperature

D. Print speed

Solution

1. Step 1: Identify cause of thin prints

   Thin, fragile prints often result from too little filament being extruded.

2. Step 2: Match cause to calibration step

   Extrusion multiplier or flow rate controls how much filament is pushed out.

3. Final Answer:

   Extrusion multiplier or flow rate -> Option A

4. Quick Check:

   Thin prints = Check extrusion flow [OK]

Hint: Thin prints? Adjust extrusion flow rate [OK]

Common Mistakes:

• Only adjusting bed leveling for print thickness
• Ignoring extrusion settings
• Changing temperature without checking extrusion

5. During calibration, a user wants to ensure the printer extrudes exactly 100 mm of filament when commanded. They measure 90 mm extruded. What adjustment should they make?

hard

A. Lower the bed temperature

B. Increase the extrusion multiplier to compensate

C. Raise the nozzle height

D. Decrease the print speed

Solution

1. Step 1: Understand extrusion measurement

   User commands 100 mm but only 90 mm extrudes, so extrusion is too low.

2. Step 2: Choose correct calibration fix

   Increasing extrusion multiplier tells printer to push more filament, fixing under-extrusion.

3. Final Answer:

   Increase the extrusion multiplier to compensate -> Option B

4. Quick Check:

   Less filament extruded? Increase extrusion multiplier [OK]

Hint: Extrude less than commanded? Raise extrusion multiplier [OK]

Common Mistakes:

• Changing bed or nozzle settings unrelated to extrusion length
• Reducing print speed instead of adjusting extrusion
• Ignoring extrusion calibration step