Finishing strategies (contour, scallop) in CNC Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to select the finishing strategy for a smooth outer edge.

CNC Programming

G01 X[1] Y0 F100 ; Move to start point for finishing

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

Acontour

Bscallop

Cdrill

Dpocket

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'scallop' which is for internal surface finishing.

The contour strategy follows the outer edge precisely for a smooth finish.

2fill in blank

medium

Complete the code to set the finishing strategy that removes small surface irregularities.

CNC Programming

M06 T1 ; Tool change to finishing tool
G01 [1] ; Start finishing pass

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

Ascallop

Bcontour

Cdrill

Drough

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'contour' which is for edges, not surface smoothing.

The scallop strategy is used to remove small surface bumps by making overlapping passes.

3fill in blank

hard

Fix the error in the finishing strategy command to correctly apply a scallop finish.

CNC Programming

G01 X10 Y10 F200 ; Move to start
G01 [1] ; Apply finishing

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

Acontour

Bscallop

Cpocket

Ddrill

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'contour' which only follows edges, not surface.

Using scallop here correctly applies the surface finishing passes.

4fill in blank

hard

Fill both blanks to create a finishing pass that uses contour strategy with feed rate 150.

CNC Programming

G01 [1] F[2] ; Start finishing pass

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

Acontour

Bscallop

C150

D200

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing scallop with contour or wrong feed rate.

The command uses contour for edge finishing and feed rate 150 for smooth movement.

5fill in blank

hard

Fill all three blanks to define a finishing pass using scallop strategy, feed rate 120, and tool number 2.

CNC Programming

M06 T[1] ; Tool change
G01 [2] F[3] ; Start finishing pass

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

A1

Bscallop

C120

D2

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong tool number or finishing strategy.

Tool number 2 is selected, then scallop finishing starts with feed rate 120.