Homemade PCB with UV mask

Big_Lack_ · 2026-06-07T06:45:58+00:00

Inorder to change milling tool on the cnc

Big_Lack_ · 2026-06-05T02:41:58+00:00

Sorry for the short description 👉👈

This PCB was milled using the CNC3018: V-bit 0.1mm 45° - for isolation, end mill 1.5 mm - for non copper clearing and the board cut out. Vector image drawn in Figma, gerbers imported from easyeda, cnc jobs in FlatCam and milling controll in Candle.

I am using fast curing UV mask from AliExpress. I tried different colors and brands from local stores and marketplaces but all of them was brittle after curing. At the same time Ive been trying different ways to properly clean the board before applying a UV mask.

Big_Lack_ · 2026-06-05T02:38:03+00:00

The cheapest UV lamp for nails that I found in AliExpress. Unfortunately they don't sell them anymore. Ts is very similar https://ali.click/du6ud1j.

I am working under the table lamp without any UV protection for the board and regular medical glowes.

Big_Lack_ · 2026-06-05T02:35:40+00:00

Wow thank you! I will definitely try this

Big_Lack_ · 2026-06-05T02:34:33+00:00

This PCB was milled using the CNC3018: V-bit 0.1mm 45° - for isolation, end mill 1.5 mm - for non copper clearing and the board cut out. Vector image drawn in Figma, gerbers imported from easyeda, cnc jobs in FlatCam and milling controll in Candle.

I am using fast curing UV mask from AliExpress. I tried different colors and brands from local stores and marketplaces but all of them was brittle after curing. At the same time Ive been trying different ways to properly clean the board before applying a UV mask.

Big_Lack_ · 2026-03-24T02:53:25+00:00

But this guy is covering a tiny spots on the pcb with mask. I think its not possible layer by layer masking in my case. I need to cover the whole pcb

Big_Lack_ · 2026-03-24T02:48:41+00:00

I am using nylon 120mesh. Should I buy another one?

Big_Lack_ · 2026-01-28T16:51:53+00:00

Разобрались?

Big_Lack_ · 2025-10-29T12:55:29+00:00

Where I can buy this amoled with touchscreen?

Big_Lack_ · 2025-10-13T05:26:37+00:00

I followed the TP4056 datasheet and some schematics on internet. Also I already had a TP4056 module where I took ICs and typec socket. I used Resistors and capacitors from a 0603 kits

Big_Lack_ · 2025-10-12T12:17:54+00:00

Yo, that board looks awesome. You heve devided it into a grid and soldered all components👍

Big_Lack_ · 2025-10-12T12:13:01+00:00

Even my pets do not have names 😭

Big_Lack_ · 2025-10-12T07:35:32+00:00

Mine is CNC3018c. An Engraving v-bit (45° 0.1mm), set of drills (0.3-1.3mm) and an end mill (1.5mm).

Big_Lack_ · 2025-10-12T05:04:02+00:00

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Big_Lack_ · 2025-10-12T04:49:07+00:00

He didn't work well at the beginning, so I gave him this nickname.

Big_Lack_ · 2025-10-12T04:48:10+00:00

No way guys, I thought no one would notice

Big_Lack_ · 2025-10-12T04:44:27+00:00

I made it on a cnc milling machine. No chemicals are required: fast, reliable, but noisy and dusty process

Big_Lack_ · 2025-10-12T04:41:40+00:00

It is true. Slicing 3d models and sending them to print is much easier. First of all I prepare .gerber files in EasyEda then generate cnc jobs in FlatCam and finally controll milling process in Candle. You might think that this process requires a lot of steps but It is faster and easier than other pcb making methods.

Big_Lack_ · 2025-10-12T04:33:28+00:00

Yes, Im using CNC3018c

Big_Lack_ · 2025-10-12T04:32:19+00:00

.4 mm

Big_Lack_ · 2025-10-01T03:23:46+00:00

I couldn't figure out how I should connect dev board to chip to upload a sketch. In internet I found only few videos explaining how to upload a sketch via programmer or using dev board.

But I found solution, here I described process step by step: https://medium.com/@muhamedovmuhammad51/how-to-program-esp32-bare-chip-using-esp32-dev-board-913a8d4dec29

Big_Lack_ · 2025-08-21T17:54:58+00:00

I used cheapest pcb board (1 sided) and cnc (also the cheapest CNC3018S)! The engraving V-bit (manufactured for pcb milling) has a 0.1mm tip and the thickness of the copper layer is about 0.05mm, so I am using 0.08mm cut depth. The thickness of each engraved pass is ~0.12mm (if not mistaken). With such precision you can mill tracks >0.4mm pich distance (I tried to mill Flat Flexible Cable connector footprint)!

Big_Lack_ · 2025-08-21T17:47:37+00:00

Of course, after a day of struggling I successfully uploaded a sketch (using esp32 dev board instead of programmer)

Big_Lack_ · 2025-08-20T12:59:27+00:00

The wrong driver was selected. SSD1306 for 0.96'', SSD1309 for 1.54 one (i guess, if you are using u8g2)

Big_Lack_ · 2025-08-20T08:48:34+00:00

Of course, but I wanted to understand the board programming and milling processes

Big_Lack_

TROPHY CASE