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STM32 Based Desktop CNC – Version 2018

I have been playing with simple moving tables equipped with stepper motors since years.

Last year (2017) I decided to develop a “useful version” of the desktop CNC as a support tool for my hobby electronics. Once I started to have the first prototypes, it became a main hobby item itself  with its never ending more and more improved versions.

I did not develop a Mach3 compatible interface, instead, I tried to develop a smarter device that directly accepts Gcode commands and executes them.  We need to send it Gcode commands line by line. To do that, I developed a “streamer” and HMI of CNC that runs on a PC.

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HOW TO MAKE a PCB USING A CNC ENGRAVER

Some of the photos of this publication have been lost during migration to a new platform by BLOGPRESS. Sorry for the inconvenience.

PCB engraving using a CNC

HOW TO MAKE PRINTED CIRCUIT BOARDS BY CNC ENGRAVING

(BU POSTANIN BLOG İÇİNDE TÜRKÇE SÜRÜMÜ DE BULUNMAKTADIR)

Selçuk ÖZBAYRAKTAR  MARCH 2018     Rev 1

PCB Engraving using a CNC

INTRODUCTION and SCOPE

Mostly only one or two of printed circuit boards are needed by hobbyists when developing a new device. When these boards are simple, so that they can be realized on a single sided PCB, I used to make them using photoresist spraying and chemical etching methods. I also tried to use photosensitized dry films and toner transfer methods. But none of them were practical enough, I was spending a lot of time and effort to have a PCB on my assembly table. Finally I decided to take another route: Engraving copper lamination of the blank PCB using my desktop CNC.

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