Pocket milling (rectangular) in CNC Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start the spindle clockwise.

CNC Programming

M3 [1]

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

AM5

BF200

CG1

DS1000

Attempts:

3 left

💡 Hint

Common Mistakes

Using M5 which stops the spindle.

Using G1 which is a linear move command.

Using F200 which sets feed rate, not spindle speed.

M3 starts the spindle clockwise and S1000 sets the spindle speed to 1000 RPM.

2fill in blank

medium

Complete the code to move the tool to the start point at X10 Y20.

CNC Programming

G0 [1] Y20

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

AZ-5

BX10

CF100

DM3

Attempts:

3 left

💡 Hint

Common Mistakes

Using Z-5 which moves tool down, not X axis.

Using F100 which sets feed rate, not position.

Using M3 which starts spindle, not moves tool.

G0 is a rapid move command. X10 moves the tool to X=10 coordinate.

3fill in blank

hard

Fix the error in the feed move command to cut at feed rate 150.

CNC Programming

G1 X30 Y40 F[1]

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

A150

BG0

C300

DM3

Attempts:

3 left

💡 Hint

Common Mistakes

Using 300 which is too fast for this task.

Using M3 which is spindle start command.

Using G0 which is rapid move, not feed rate.

F150 sets the feed rate to 150 units per minute during the G1 cutting move.

4fill in blank

hard

Fill both blanks to define a rectangular pocket from X10 to X50 and Y20 to Y60.

CNC Programming

G1 X[1] Y[2] F100

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

A10

B60

C20

D50

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping X and Y values.

Using values outside the pocket range.

Using feed rate instead of coordinates.

X50 and Y60 define one corner of the rectangular pocket boundary.

5fill in blank

hard

Fill all three blanks to create a dictionary of pocket corners with their coordinates.

CNC Programming

pocket = {{'start_x': [1], 'start_y': [2], 'end_x': [3]

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

A10

B20

C50

D60

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up start and end coordinates.

Using Y coordinate for end_x key.

Leaving blanks empty.

The dictionary keys map to the pocket's start and end coordinates correctly.