DIY Mini CNC Plotter Machine





Introduction: DIY Mini CNC Plotter Machine

Mini CNC plotter machine with 3D printed frame

Step 1: Video

Hello friends

I have made a micro size CNC plotter machine out of old scrap DVD drive stepper mechanism

The best part of this machine is i 3D print its frame to give it very compact look, all the 3D parts i have printed on tevo tarantula 3d Printer @ 0.15 layer hight, 60% infill PLA

T controller this CNC machine we need a microcontroller board called arduino Nano and we need motor driver IC for each stepper motor that is L293D IC all the electronics components are solder on a costume made PCB

I prepared a PCB layout and order it from JLCPCB.COM as soon as you get PCB you just need to solder header pins,PCB terminals & CNC is ready to load code to run. JCLPCB is PCB manufacturing company they provide upto 10 prototype PCB in just 2$ with first shipping free it was a great deal. If you need any PCB to order you can consider to visit JLCPCB.COM

For more please visit

Step 2: Material Required

Following are the list of major material you need for this project

2 nos Scrap DVD drive

Arduino nano :-

L293D IC :-

PCB Terminal :-

Header pin :-

Servo motor : -

5V adapter :-

Prototype PCB

apart from this you need some hardware like nut bolts some acrylic sheet and double side 3M tape

Step 3: 3D Printed Parts

Mainly there is four 3D printed parst

Two are the stepper motor platform (one for each axis)

Two are the X-axis clamp to hold the X-axis above from the Y-axis

link is given to download 3D parts

my 3D printer is Tevo tarantula

printer settings are : - 0.15 layer hight, 60% infill PLA

Step 4: Mechanical Assembly

Assemble the machine as shone in video

Step 5: Eelctrical Circuit & Code

The PCB is manufactered as per the cuircuit diagram

The editable fritzing file & Gerber file is also attached along with all data

now you have to download Zip file from the link given above and unzip it

load the cnc.ino code to arduino

an dopen processing software Run the GCTRL code to processing

as new window pop up press "p" to select the com port then press "g" to load gcode hit enter

and plotter start plotting

To know complete procedure of how to operate this machine please watch this video

the basic operation of both machine are same



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    Amazing Project !!! Do you sell the printed parts? I do not own a 3d printer and would like to build one too.

    Great project - Plotting is great but have you considered adding a cutter so you can cut PCB patterns then of course add a drill bit to drill the holes ???


    I'm usually pretty critical of most of the cnc's posted on instructable, but in this case. It's well made, well thought out, and has good x,y,z control.

    Nicely done.