Laser Etching a PCB

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Күн бұрын

We used a 30w fiber laser to etch a single sided copper clad FR4 circuit board. After several trials with Lightburn's hash function, we found some suitable settings. Next up, we need to determine if aoldermask is necessary.

Пікірлер: 35

@vdx4616 4 ай бұрын

... for avoiding charcoal, you can spraypaint the PCB, then remove only 90% of the copper, and last remove the last remains with acid (I've used 1:1:1 30% Hydrochloric acid, 30% H2O2 and Aq.Dest). Or use PCB's with aluminium-core, then you can remove all the copper and the ceramic isolator beneath (the aluminium core is pretty resistant against the fiber-laser).

@JM_Tushe Жыл бұрын

That's so dang cool.

@shrinivasganti90 Жыл бұрын

Could you please describe the process you used to find the best settings ? I'm trying the same with a 50 W Raycus and no luck at all, the copper doesn't mark :( It's in focus (red dots aligned) and I'm using 90% power at 20 kHz

@CraigHollabaugh Жыл бұрын

Check my community post, there's an image there of my settings.

@icarossavvides2641 7 ай бұрын

Useless video, no information whatsoever!

@CraigHollabaugh 7 ай бұрын

I agree, watch this instead from electronoobs kzbin.info/www/bejne/hqC8lJ2vnM13rpYsi=jjUmkQBlW5HTC_Vb

@gert_kruger 5 ай бұрын

Burnt FR4 is slightly conductive. Could cause arching at high enough voltage.

@CraigHollabaugh 5 ай бұрын

Good point, I didn't move past this point. Electronoob recently did a complete video on making pcb with a fiber laser. Check it out.

@marc7637 Жыл бұрын

Quel model de tête laser permet un tel résultat puissance? réf, prix

@jimsvideos7201 Жыл бұрын

Did you get the traces the way you wanted them? Any broken ones?

@frankhovis Жыл бұрын

So you're burning away the copper and leaving burnt - and potentially conductive - fibreglass in its place. How's' that useful?

@Bezulba2 10 ай бұрын

Useful as in how a lot of pcb's are made, but instead of etching away the coper, he burns it away.

@frankhovis 10 ай бұрын

@@Bezulba2 By burning the PCB he's carbonising the fibreglass and making it conductive. Its useless.

@marc7637 6 ай бұрын

Ce genre de laser coûte une fortune et difficile à trouver contrairement aux lasers qui grave bois ,cuir etc... ce modèl vaporise le cuivre sa longueur d'onde est d'ailleurs plus grande 1020 environ contre 470 pour les autres

@CraigHollabaugh 6 ай бұрын

watch this Homemade PCBs with Fiber Laser - 0.1mm Clearance - electronoobs kzbin.info/www/bejne/hqC8lJ2vnM13rpY

@skilledcamman4752 4 ай бұрын

How small is that board?

@JBSATE 11 ай бұрын

Gual potencia lazer

@mpelagio-engenharia Жыл бұрын

How long time to make this pcb?

@AngelR1227 Жыл бұрын

Thank you for sharing. Are you able to share more details on the type of laser source and settings?

@CraigHollabaugh Жыл бұрын

sure, next time I'm in the shop I'll send these to you.

@CraigHollabaugh Жыл бұрын

Check my YT posts to get the fiber laser settings used here.

@AngelR1227 Жыл бұрын

@@CraigHollabaugh Thank you.

@lolsypussy Жыл бұрын

Nice video. I'm also planning to have one together with a CNC mill and drill for the holes and cutting but the alignment process might be tedious during tool transfer

@CraigHollabaugh Жыл бұрын

use alignment pins.

@oldekline Жыл бұрын

Also I would like to see the layers in lightburn.

@CraigHollabaugh Жыл бұрын

are you talking about these? yt3.ggpht.com/xBtkD7yEdlWEO9qsEfc0eDtaTpBxMaOaF1vxlOy5nhwTCa07n9HnEJ0BX1unyswwaxCU1mTa8zAHQYs=s640-nd-v1

@oldekline Жыл бұрын

@@CraigHollabaugh No first time i watched this I thought it was multiple operations. Now it looks like two passes with as starting angle of 0 with a crosshatch. Might be a good move to do a line only pass to isolate everything.

@CraigHollabaugh Жыл бұрын

@@oldekline OK, thanks.