Assignment: Mechanical Design

The task of our team is to make a "Laser Draw Machine", you can see our machine here.
In our team, I do my job following four step:
  • Step1: Schedule
  • Step2: Frame design and fabrication
  • Step3: Hardware Circuit
  • Step4: Software Control

    • Laser Draw Machine

    We want to make a laser machine, which can draw pictures by laser, and the picture is continuous in the length direction. At first,our scheme shows below:


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    Frame design

    I design the frame of the laser machine by AutoCAD, we use the Acrylic material.

    I design the Laser support panel in Solidworks, and use 3D printer to print it.


    Fabrication

    The following is the a part of the machine.


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    Hardware List

    The whole machine used the following hardware:

  • Arduino UNO
  • V3 CNC sheild
  • two step motors
  • Laser cutter


    • Circuit

    The Laser power in controlled by the Arduino Pin11, in order to control the on/off of the laser, we use a transistor. And in order to control the strength power of the laser, we connect serial connect a resistor to the circuit.


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    GRBL Configuration

    We use the GRBL as the control firmware. I config the parameter by the Serial Port Utility. Set the X and Y axis speed to 667 and 25.

    Laser Control Software

    We use Laser Master software to import pictrues and export to our machine.


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