Post-processor and G-code output in CNC Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start the G-code program with the correct command.

CNC Programming

write_line('[1]')  # Start of G-code program

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

AM30

BG00

CG90

DG21

Attempts:

3 left

💡 Hint

Common Mistakes

Using M30 which ends the program instead of starting it.

Using G00 which is a rapid move command, not a setup command.

The command G21 sets units to millimeters, which is commonly the first line in G-code programs.

2fill in blank

medium

Complete the code to output a rapid move to X=10, Y=20.

CNC Programming

write_line('G00 X[1] Y20')

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

A10

B20

C30

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing X and Y values.

Using zero instead of the correct coordinate.

The rapid move command G00 moves quickly to the specified coordinates. Here, X should be 10.

3fill in blank

hard

Fix the error in the code to output a spindle start command at 1000 RPM.

CNC Programming

write_line('M03 S[1]')

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

A500

B1500

C1000

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using zero speed which stops the spindle.

Using a speed different from 1000 RPM.

The spindle start command M03 with speed S1000 starts the spindle at 1000 RPM.

4fill in blank

hard

Fill both blanks to output a linear move to X=50 and feedrate of 1500.

CNC Programming

write_line('G01 X[1] F[2]')

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

A50

B1500

C1000

D25

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up feedrate and coordinate values.

Using incorrect feedrate values.

G01 is a linear move command. X=50 sets the position, and F=1500 sets the feedrate.

5fill in blank

hard

Fill all three blanks to output a program end with spindle stop and coolant off.

CNC Programming

write_line('[1]')
write_line('[2]')
write_line('[3]')

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

AM05

BM09

CM30

DM03

Attempts:

3 left

💡 Hint

Common Mistakes

Using M03 which starts the spindle instead of stopping it.

Ending program before stopping spindle and coolant.

M05 stops the spindle, M09 turns coolant off, and M30 ends the program.