Are you still worried about what gifts are best suited for your friends? Do you want to choose something creative to express your sincere wishes? With economic development, people now have more sophisticated requirements for presents. Gifts that can not only express best wishes but are also full of clever ideas are coming into sight.
Lots of my friends want to print their favorite pictures and cartoon characters on some small ornaments. People who are keen on DIY also wish to make their own electronic products using home-made PCBs. Due to these demands, the idea of making a laser engraving machine came into my mind. The machine is made almost completely from wasted materials, which not only saves money but also puts the concept of “resource recycling and reuse” into practice. However, the first generation of my laser-engraving machine can only satisfy the need of printing personalized pictures, but not etching the PCB. Thus, I expanded the machine frame size to create the second generation and came up with an innovative method of PCB etching, broadening the machine’s uses.
The machine is made from discarded CD-drives and printers – either taken from wasted home appliances or bought from the second-hand market for a few RMB. I will show my print work at the end.
Step 1: Demo Video 演示视频
This is a demonstration of the engraving process.
Step 2: (first generation) Using the CD drives – dissemble the wasted drive and take down the laser and stepping motor
The first step is to dissemble the wasted CD drives, taking the stepping motors and laser heads from them. The last picture shows the laser head after disassembly.
Step 3: (first generation) Assemble the circuits and the drive frames
This is my first-generation product, using the wasted CD drives and Arduino.
Let’s start assembling! This is the specific making process: solder the circuit board by Arduino Nano and a4988 stepper driver; use the waste wood slats and the disassembled drives’ stepping motors. Wood is not only easy for making changes, even with a saw or utility knife, but also environment-friendly. Always remember to keep the stepping motors on the x and y axes perpendicular to avoid printing crooked or skewed pictures.