Print speed and acceleration in 3D Printing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the print speed in a 3D printer configuration.

3D Printing

print_speed = [1]  ;  // speed in mm/s

Drag options to blanks, or click blank then click option'

Aspeed

Bfast

C60

DprintSpeed

Attempts:

3 left

💡 Hint

Common Mistakes

Using a word like 'fast' instead of a numeric value.

Using variable names instead of actual speed values.

The print speed is usually set as a number representing millimeters per second (mm/s). Here, 60 mm/s is a typical print speed value.

2fill in blank

medium

Complete the code to set the acceleration value for the printer's movement.

3D Printing

acceleration = [1]  ;  // acceleration in mm/s²

Drag options to blanks, or click blank then click option'

Aspeed

B1000

Cfast

Daccel

Attempts:

3 left

💡 Hint

Common Mistakes

Using variable names instead of numeric values.

Using descriptive words like 'fast' instead of numbers.

Acceleration is set as a numeric value in millimeters per second squared (mm/s²). 1000 mm/s² is a common acceleration setting for 3D printers.

3fill in blank

hard

Fix the error in the code to correctly set the maximum print speed.

3D Printing

max_speed = [1]  ;  // max speed in mm/s

Drag options to blanks, or click blank then click option'

Aspeed

BmaxSpeed

C"fast"

D120

Attempts:

3 left

💡 Hint

Common Mistakes

Using strings like "fast" instead of numbers.

Using variable names instead of numeric values.

The maximum print speed should be a numeric value. Using 120 mm/s is a valid maximum speed setting.

4fill in blank

hard

Fill both blanks to create a dictionary of speeds for different printer parts.

3D Printing

speeds = {"extruder": [1], "bed": [2]  ;  // speeds in mm/s

Drag options to blanks, or click blank then click option'

A50

B60

C70

Dspeed

Attempts:

3 left

💡 Hint

Common Mistakes

Using variable names instead of numbers.

Using the same speed for both parts without reason.

The extruder speed is set to 50 mm/s and the bed speed to 70 mm/s. Both are numeric values representing speed in millimeters per second.

5fill in blank

hard

Fill all three blanks to create a dictionary with acceleration settings for axes.

3D Printing

acceleration_settings = {"x": [1], "y": [2], "z": [3]  ;  // acceleration in mm/s²

Drag options to blanks, or click blank then click option'

A800

B1000

C600

Daccel

Attempts:

3 left

💡 Hint

Common Mistakes

Using strings instead of numbers or variables.

Using the same acceleration for all axes without reason.

The dictionary keys are axes 'x', 'y', and 'z'. The values are numeric accelerations: 1000 mm/s² for y, 600 mm/s² for z, and 'accel' is a variable representing acceleration for x.

Practice

1. What does print speed control in 3D printing?

easy

A. The color of the printed object

B. The temperature of the printer nozzle

C. How fast the printer moves while printing

D. The size of the printer bed

Solution

1. Step 1: Understand print speed meaning

   Print speed refers to how fast the printer's head moves while laying down material.

2. Step 2: Identify correct description

   Among the options, only the speed of movement matches print speed.

3. Final Answer:

   How fast the printer moves while printing -> Option C

4. Quick Check:

   Print speed = movement speed [OK]

Hint: Print speed means movement speed during printing [OK]

Common Mistakes:

• Confusing print speed with temperature
• Thinking print speed controls color
• Mixing print speed with printer size

2. Which of the following is the correct way to describe acceleration in 3D printing?

easy

A. How quickly the printer reaches its set speed

B. The time it takes to heat the printer bed

C. The speed at which filament is fed

D. The size of the printed layers

Solution

1. Step 1: Define acceleration in printing

   Acceleration is how fast the printer increases its speed from rest to the set print speed.

2. Step 2: Match definition to options

   How quickly the printer reaches its set speed correctly describes acceleration as reaching the set speed quickly.

3. Final Answer:

   How quickly the printer reaches its set speed -> Option A

4. Quick Check:

   Acceleration = speed increase rate [OK]

Hint: Acceleration means speed increase rate [OK]

Common Mistakes:

• Confusing acceleration with heating time
• Mixing acceleration with filament feed speed
• Thinking acceleration controls layer size

3. Consider a 3D printer set to a print speed of 60 mm/s and acceleration of 1000 mm/s². What happens if acceleration is increased to 3000 mm/s² while keeping speed constant?

medium

A. The print speed increases to 3000 mm/s

B. The printer will stop printing

C. The printer moves slower overall

D. The printer reaches 60 mm/s faster, potentially improving print time

Solution

1. Step 1: Understand acceleration effect

   Higher acceleration means the printer reaches the set speed faster.

2. Step 2: Analyze impact on print speed

   Print speed stays at 60 mm/s, but the printer gets there quicker, reducing delays.

3. Final Answer:

   The printer reaches 60 mm/s faster, potentially improving print time -> Option D

4. Quick Check:

   Higher acceleration = faster speed ramp-up [OK]

Hint: Higher acceleration means faster speed ramp-up [OK]

Common Mistakes:

• Thinking acceleration changes max speed
• Assuming printer slows down with higher acceleration
• Believing printer stops due to acceleration change

4. A user sets print speed to 80 mm/s but notices poor print quality. They increase acceleration to 5000 mm/s² but quality worsens. What is the likely issue?

medium

A. Acceleration is too high causing vibrations and poor quality

B. Print speed is too low for good quality

C. Acceleration should be zero for best results

D. Printer bed temperature is too high

Solution

1. Step 1: Understand acceleration impact on print quality

   Too high acceleration can cause printer vibrations, leading to defects.

2. Step 2: Analyze user's settings and symptoms

   High acceleration with high speed often causes shaking, worsening quality.

3. Final Answer:

   Acceleration is too high causing vibrations and poor quality -> Option A

4. Quick Check:

   High acceleration = vibrations = poor quality [OK]

Hint: Too high acceleration causes vibrations and bad prints [OK]

Common Mistakes:

• Assuming higher acceleration always improves quality
• Ignoring acceleration effects on vibrations
• Blaming bed temperature without checking speed/acceleration

5. You want to print a detailed model quickly without losing quality. Which combination of print speed and acceleration is best?

hard

A. Low print speed with low acceleration

B. High print speed with low acceleration

C. High print speed with high acceleration

D. Low print speed with high acceleration

Solution

1. Step 1: Consider print speed and detail trade-off

   High speed can reduce print time but may reduce quality if acceleration is too high.

2. Step 2: Balance acceleration to maintain quality

   Low acceleration reduces vibrations, preserving detail even at higher speeds.

3. Final Answer:

   High print speed with low acceleration -> Option B

4. Quick Check:

   Fast speed + gentle acceleration = quality + speed [OK]

Hint: Use low acceleration to keep quality at high speed [OK]

Common Mistakes:

• Using high acceleration causes quality loss
• Assuming low speed always means better quality
• Ignoring acceleration's effect on print vibrations