The purpose of this entry is to indicate the necessary steps to create a very basic design of Arduino Nano I/O shield in QCAD for your robot.

Our goal of design is to create a CAD design for the Arduino Nano I/O Shield. It’s worth mentioning that the shield is glued over the robot base, not requiring holes or additional fixing elements. We will use the engraving layer to indicate where the board will be placed.

The measurements of the expansion board are shown below:

We will start from this template:

Select the engraving layer and create a polyline with the following set of commands:

polyline

0,0

@57.2,0

@0,53.2

@-57.2,0

@0,-53.2

Them, we create another polyline with the following set of commands (also in the engraving layer):

polyline

57.2,17.6

@-46.7,0

@0,18

@46.7,0

Finaly, in the “Aux” layer, we will right a text using the “Text” tool from the tools menu (at the left). Select letter size and type (we have used Arial size 5). And also, you can add some dimensions using the “dim” tool.

Here you can find the solution: