Mounting hole placement in PCB Design - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define the mounting hole diameter.

PCB Design

mounting_hole_diameter = [1]  # in millimeters

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

A5.0

B3.2

C10

D0.5

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing a hole diameter too small for screws.

Using a diameter that is not standard for mounting holes.

The standard mounting hole diameter is often 5.0 mm to fit common screws.

2fill in blank

medium

Complete the code to place a mounting hole at the top-left corner coordinates.

PCB Design

mounting_hole_position = ([1], 0)  # x, y in mm

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

A50

B10

C0

D-5

Attempts:

3 left

💡 Hint

Common Mistakes

Using a negative coordinate for the hole position.

Placing the hole too far from the edge.

The top-left corner x-coordinate is 0 mm, so the hole is placed at (0, 0).

3fill in blank

hard

Fix the error in the code to correctly calculate the center position of the mounting hole.

PCB Design

center_x = board_width [1] 2

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

A*

B/

C+

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Using addition or multiplication instead of division.

Subtracting 2 instead of dividing by 2.

Dividing the board width by 2 gives the center x-coordinate.

4fill in blank

hard

Fill both blanks to create a dictionary of mounting hole positions with their labels.

PCB Design

mounting_holes = {"[1]": (0, 0), "[2]": (board_width, 0)}

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

Atop_left

Bbottom_right

Ctop_right

Dbottom_left

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up corner labels.

Using bottom corners instead of top corners.

The top-left hole is at (0,0) and the top-right hole is at (board_width, 0).

5fill in blank

hard

Fill all three blanks to calculate the distance between two mounting holes.

PCB Design

distance = ((x2 - [1])[2]2 + (y2 - [3])[2]2) ** 0.5

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

Ax1

B**

Cy1

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using addition instead of exponentiation for squaring.

Mixing up x and y coordinates.

This formula calculates the Euclidean distance between points (x1, y1) and (x2, y2).