Introduction: Sin Wave Plotter

The sine wave plotter is a design made to help demonstrate the sine function wave, that we made to help students in a Vietnamese school. Some of the restraints that we need to keep in mind is that the prototype must be light in weight and made of recyclable materials (MDF Wood and PLA). The prototype should also show the difference between two waves of varying amplitude.


1- Base plate

2- Rotating disk

3- Fitting rod

4- Nut

5- Moving arm

6- Pen holder

7- Bearing

8- Pen holder handle

Step 1: Materials and Tools

The tools and materials that we used in this project :

-CNC Machine

-Glue Gun

-3D Printer

-Press Drill



-Filing tool

-MDF Wood


Step 2: Assembly

Step 3: Results

We had a couple of results. The first picture is the first position, and the second picture is the second position.

Step 4: 3D Designs

All of the 3D designs are available here :