In this video we will build a professionally finished PCB using a CNC machine and a laser module. We will see how to create doublesided PCBs, how to perform the alignment, how to electrically connect both sides and how to add the soldermask and the silkscreen.

00:00 Introduction
00:47 Drilling
03:06 Connecting the two faces
06:58 Machining of the PCB
11:50 Soldermask & Silkscreen
18:55 Final result

In the following article on my website you will find all the details, frequently asked questions, configuration parameters and 3D models used in this video:

https://gomezgimenez.com/electronica/...

%% SOFTWARE

You can find the software to perform the laser alignment and test in the following links:
Project page and instructions:
https://github.com/alvarogimenez/gco...
Installation and executables:
https://github.com/alvarogimenez/gco...

FlatCAM version: 8.994
https://bitbucket.org/jpcgt/flatcam/d...

Candle version: 1.1.7
https://github.com/Denvi/Candle/relea...

%% MATERIALS

~ Chemicals and consumables ~
Copper sulfate: https://www.amazon.es/dp/B07QB89QN3
Citric Acid: https://www.amazon.es/dp/B07BMVYTNX
Polysorbate 20: https://www.amazon.es/dp/B009EO1Y7Q
Hydrochloric Acid: https://bit.ly/3i0yHog
Conductive Ink: https://liquiwire.tech/products/liqui...
UV mask: https://es.aliexpress.com/item/329005...
Screen printing fabric (80T 200M): https://es.aliexpress.com/item/330271...

~Tools~
CNC 1419: https://es.aliexpress.com/item/400110...
Magnetic stirrer: https://www.amazon.es/dp/B08VRNKLJS
Precision scale: https://www.amazon.es/dp/B089T3YFVB
Airbrush: https://es.aliexpress.com/item/329660...
Compressor: https://www.amazon.es/dp/B00JUZNGY8
Hot air gun: https://www.amazon.es/dp/B00MA01HXW
Sandpaper: https://www.amazon.es/dp/B07VTTSKQW
Cleaning brushes: https://www.amazon.es/dp/B08XXS3NPN
PCB drill bits: https://www.amazon.es/dp/B073P4PQLZ
Conical drill (0.1mm 30º): https://es.aliexpress.com/item/400096...
Virgin Copper PCB: https://www.amazon.es/dp/B07RBK9WW6
UV lamp: https://www.amazon.es/gp/product/B08D...
Screen printing spatula: https://www.amazon.es/gp/product/B07W...

Music by Ketsa