This project is the first of at least 4 prototypes I have planned to develop to finally obtain a Laser Cutting CNC Machine. This is a Mini CNC based on Arduino and open source software. This combines motor drivers concepts, stepping motors concepts, CNC real application, software interfacing, and others engineering concepts, it is a really fascinating DIY.
Phase 1: Two motors(X-Y-Axes)My motor's vendor fails delivering just two, this gave me the chance to test without Z dimension. Believe me is a good way to tuning your machine
In the next video you can watch how this mini CNC works with two motors. In the interim you can be designing how to install and setting up the z axis
You need to connect the motors to the CNC shield according to the schematics, and to tune the resistors of each driver according to the DS of the step motors.
If you have micro step motors, before to install drivers you need to bridge connection in the cnc shield according to the steps you need to use. Please Check your motors DS and your drivers models DS.
For the X,Y axes you need linear bearings and adjust in order to obtain a smooth movement of each screw and the accessory adapted. I used 5mm diameter linear bearings , two for each axis.
I used two step motors extracted from an old CD driver.
Software Issues:
You need to install in your PC and learn how to use Inkscape software
https://inkscape.org/en/release/0.92.3/
You need to install in your pc and learn how to run g-code sender
https://github.com/winder/Universal-G-Code-Sender/tree/master/ugs-platform
You need to upload to your arduino GRBL software
This software should be uploaded before you connect the CNC shield, otherwise you have the risk of damage your drivers.
Phase 2: Three motors (X-Y-Z-Axes)Future
PHASE 3: THREE MOTOR (X-Y-Z AXES) WORKING AREA 1000 mmX 1000mmFuture
PHASE 4: LASER 5 WFuture
PHASE 5: LASER 15 W - MOTORS CLONED-WORKING AREA 1000mmX100mmFuture
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