Print bed leveling (manual and auto) in 3D Printing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start manual bed leveling on a 3D printer.

3D Printing

G28 ; Home all axes
G29 [1] ; Start manual bed leveling

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

AM0

BS0

CP1

DZ1

Attempts:

3 left

💡 Hint

Common Mistakes

Using G29 without parameters starts automatic leveling, not manual.

Confusing G28 (homing) with leveling commands.

The command G29 P1 starts manual bed leveling on many 3D printers, prompting the user to adjust the bed at specific points.

2fill in blank

medium

Complete the code to run automatic bed leveling on a 3D printer.

3D Printing

G28 ; Home all axes
[1] ; Run automatic bed leveling

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

AG29

BM104 S200

CG1 Z0.2

DM106 S255

Attempts:

3 left

💡 Hint

Common Mistakes

Using temperature commands like M104 instead of leveling commands.

Confusing fan control commands with leveling.

The command G29 runs automatic bed leveling, where the printer probes multiple points on the bed to adjust leveling automatically.

3fill in blank

hard

Fix the error in the manual leveling command to correctly start the process.

3D Printing

G28 ; Home all axes
G29 [1] ; Start manual bed leveling

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

AP0

BZ0

CS1

DP1

Attempts:

3 left

💡 Hint

Common Mistakes

Using P0 which may disable leveling.

Using parameters unrelated to leveling.

The correct parameter to start manual bed leveling is P1. Using P0 or others will not initiate manual leveling.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps bed points to their Z-offsets during leveling.

3D Printing

bed_offsets = { [1]: probe_data[[2]] for [1] in points if probe_data[[2]] != 0 }

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

Apoint

Bz_offset

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names for key and index causing errors.

Using variables not defined in the comprehension.

The dictionary comprehension uses point as the key and accesses probe_data[point] as the value to map bed points to their Z-offsets.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that stores adjusted Z values for points with positive offsets.

3D Printing

adjusted_offsets = { [1]: [2] - [3] for [1], [2] in probe_points.items() if [2] > 0 }

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

Apoint

Boffset

Cbed_level_offset

Dprobe_points

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing variable names for keys and values.

Using the wrong variable for subtraction.

The comprehension iterates over probe_points items, using point as key and offset as value, subtracting bed_level_offset for positive offsets.