Why proper tool setup prevents crashes in CNC Programming - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the tool length offset correctly.

CNC Programming

G43 H[1]

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

A01

B10

C5

D99

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong tool number in the H code.

Omitting the G43 command entirely.

The code G43 H01 applies the tool length offset for tool 1, which is essential to avoid crashes.

2fill in blank

medium

Complete the code to move the tool to the safe Z height before starting the cut.

CNC Programming

G0 Z[1]

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

A-5

B10

C0

D5

Attempts:

3 left

💡 Hint

Common Mistakes

Using a zero or negative Z value which risks collision.

Not moving to a safe height before rapid moves.

The command G0 Z10 moves the tool up to 10 units above the workpiece, ensuring it clears clamps and fixtures before moving horizontally.

3fill in blank

hard

Fix the error in the tool change command to prevent crashes.

CNC Programming

T[1] M6

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

A2

B0

C01

D10

Attempts:

3 left

💡 Hint

Common Mistakes

Using tool number without leading zero causing tool mismatch.

Using zero as tool number which is invalid.

The correct tool change command uses the tool number with leading zero if needed, like T01 M6. This ensures the machine selects the right tool and avoids crashes.

4fill in blank

hard

Fill both blanks to set the spindle speed and feed rate correctly to avoid tool breakage.

CNC Programming

S[1] F[2]

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

A1500

B100

C500

D200

Attempts:

3 left

💡 Hint

Common Mistakes

Setting feed rate higher than spindle speed causing tool overload.

Using very low spindle speed causing poor cutting.

Setting spindle speed to 1500 RPM and feed rate to 100 mm/min helps maintain safe cutting conditions, preventing crashes and tool damage.

5fill in blank

hard

Fill all three blanks to create a safe tool path that avoids crashes by retracting, moving, and then plunging.

CNC Programming

G0 Z[1]
G0 X[2] Y[3]

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

A10

B50

C25

D5

Attempts:

3 left

💡 Hint

Common Mistakes

Moving horizontally without retracting tool first.

Using coordinates outside the workpiece area.

Retracting the tool to Z10, then moving to X50 Y25 safely positions the tool before cutting, preventing crashes.