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EleksMaker laser machine upgrades

Unless I get one of those used fiber coupled high power semiconductor lasers from eBay, this is my last laser video for now. Because it's more than good enough for PCBs now.

EleksMaker laser machine upgrades

Comments

Grate to see you. Will you be able to assist me on the question in my previous comment

Back online! GDPR says hello ...

Marco Reps

Hi Marco. The upgrade you have made is just outstanding. I have tried the link to the software and wiring in your video, but this bring me back to your home page. Would be possible to send me photos and explanation on how you did it. I'm new to all this, but keen to make such upgrade to my printer I bought recently

You can probably use a 445 nm 1 W or better 2 W laser diode for hardware store spray paint and similar. Those work fine for normal SMD sizes like 0805 passives and SOT packages. The dot isn't perfectly round and not as small as that of 405 nm diode. The 405 nm diodes are less powerfull on the other hand, probably difficult to remove spray paint. They are perfect for exposing photosensitive boards and maybe film, but I haven't tried the latter.

Marco Reps

Marco, you're still using the laser to ablate a layer of paint off the copper, right? I'm curious, what laser power do you think would be sufficient to ablate the paint cleanly? I have a spare 3D printer I've been thinking about turning into a PCB engraver, but I've been hesitant because I'm not sure what laser power would be strong enough. I figured a 1W laser should be enough, but do you think I could get away with 500 mW, which are a lot cheaper?

Jason Hite

Yeah, that's what I though. Damm, I'll have to buy one of those then.

Haven't tried that, but I am 86.5% sure it does.

Marco Reps

Does that process work for exposing pcbs laminated with Dry Film?

Hm I like the black aluminium profiles, but the controller / display? Not sure ... WiFi would be pretty cool, I've grown to love the fact that I can put the Cetus3D _everywhere_

Marco Reps

Have you see the newest Laser cutter offering that Banggood has? It has a stand alone controller/display on it. <a href="https://www.banggood.com/A3-2500mW-DIY-Laser-Engraving-Machine-Mini-CNC-Desktop-Wood-Engraver-SD-Card-30X38CM-p-1240238.html" rel="nofollow noopener" target="_blank">https://www.banggood.com/A3-2500mW-DIY-Laser-Engraving-Machine-Mini-CNC-Desktop-Wood-Engraver-SD-Card-30X38CM-p-1240238.html</a>

Jon Raymond

No, not yet. Definitely possible because step / dir interface, but not plug and play, because "closed" controller and soldered stock drivers

Marco Reps

Did you try the trinamic driver with the cetus "laser" setup? For me it would be interesting because I plan to buy a cetus.

Holger Scade

Damn, that bothers me very much :| But who knows, maybe it is 265 accidentally, haven't counted

Marco Reps

It would have been genius if I had managed to squeezed SPI into the GRBL controller, but that is a surprisingly complex software project with only a few bytes of memory left on the ATmega

Marco Reps

1:06 Your jumper color matches the color of the 3D printed part. Not that this is important. Just needed to point that out ;) Oh and later on you say "265 microsteps". Typical german mistake, I do that all the time :)

Holger P Kleinert

Wow that was really impressive! I need some of these Trinamic drivers in my life. Also the use of the secondary pro-mini is genius.

Jon Raymond


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