# Laser module for making regular and flexible circuit boards

**URL:** <https://forum.snapmaker.com/t/laser-module-for-making-regular-and-flexible-circuit-boards/1639>\
**Category:** Showcase & Prints\
**Created:** [February 17, 2018, 8:30pm UTC](https://forum.snapmaker.com/t/laser-module-for-making-regular-and-flexible-circuit-boards/1639 "2018-02-17T20:30:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![dgohara](https://avatars.discourse-cdn.com/v4/letter/d/48db29/32.png) [@dgohara](https://forum.snapmaker.com/u/dgohara)\
**Post date:** [February 17, 2018, 8:30pm UTC](https://forum.snapmaker.com/t/laser-module-for-making-regular-and-flexible-circuit-boards/1639/1 "2018-02-17T20:30:20Z")

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After some experimentation I was able to produce nice copper-clad circuit boards and flexible boards (Kapton tape backed). Using the laser with PCB dry-film photoresist, followed standard processing to etch the copper and remove the resist material.

The best prints for my applications use the laser at 10% power w/ an engrave speed of around 400 mm/minute.Higher power results in light bleeding on the photoresist causing the small tracks and pads to overlap. For the fiberglass board, the track size is about 0.5mm.

 ![IMG_0350](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/2X/9/9f69d51e1a522990e67c78bff1520cc22e2c5336.jpg) ![IMG_0361](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/2X/2/29581dd8bce434ef204770851b6d2fc00c14ecfc.jpg) ![IMG_0355](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/2X/b/b5b406a47951cc6640c98fc4f5401bb42baa8f24.jpg)

Video of flexible circuit after placing parts can be seen at the following link:

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**Author:** ![nmohnot](https://avatars.discourse-cdn.com/v4/letter/n/f17d59/32.png) [@nmohnot](https://forum.snapmaker.com/u/nmohnot)\
**Post date:** [February 25, 2018, 6:43pm UTC](https://forum.snapmaker.com/t/laser-module-for-making-regular-and-flexible-circuit-boards/1639/2 "2018-02-25T18:43:06Z")

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Would you mind writing a step by step?  
Or do you have any “instructables” anywhere?

thanks

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**Author:** ![dgohara](https://avatars.discourse-cdn.com/v4/letter/d/48db29/32.png) [@dgohara](https://forum.snapmaker.com/u/dgohara)\
**Post date:** [March 1, 2018, 1:02pm UTC](https://forum.snapmaker.com/t/laser-module-for-making-regular-and-flexible-circuit-boards/1639/3 "2018-03-01T13:02:02Z")

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Hi @nmohnot,

Sorry for the delay. I don’t have an Instructable, but I’d be happy to write up and share the steps I took (as well as the materials I used). I’ll try and get that together in the next few days and I’ll post it here.

Thanks,

Dave