Cu Circuits

The Cu Circuits Blog: PCB Manufacturing and 3D Printing Guides

01PCB4 min read

How to Prepare Gerber Files for PCB Manufacturing:
A Practical Checklist

A pre-upload checklist for Gerber files: formats, required layers, drill files, board outline, solder mask and the small mistakes that delay PCB orders.

The Cu Circuits Blog

Written on the factory floor, Chennai

02PCB3 min

HASL vs ENIG: Choosing the Right PCB Surface Finish

HASL or ENIG? Compare cost, flatness, shelf life and fine-pitch suitability to choose the right PCB surface finish for your next board.

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033D Printing3 min

PLA, PETG, ABS or Nylon: Picking the Right 3D Printing Material

A practical guide to 3D printing materials: strength, temperature resistance, flexibility and cost of PLA, PETG, ABS, TPU and Nylon compared.

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