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EleksMaker laser machine upgrades (Patreon)

Published:
2017-12-20 01:53:47
Edited:
2017-12-20 11:39:50
Imported:
2021-08

Content

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.

Files

Important upgrades for the EleksMaker PCB laser CNC machine

Laser machine: https://goo.gl/5AsDBU Laser diode: https://goo.gl/sb2m4k Laser patreon: https://www.patreon.com/marcoreps L ... Stepper driver: http://www.watterott.com/de/SilentStepStick-TMC2130 Final wiring and software setup: Coming soon This videos is about modifications that turned the EleksMaker machine into a better performer than the already amazing 3D printer. First I 3D printed belt holders and adjustable roller mounts for the X axis to ease all movements. Then I equipped a small-dotted 405 nm laser diode, to improve on fine details. Finally I replaced the Pololu A4988 stepper drivers with Watterott TMC2130 ones. All the advantages of these Trinamic ICs will not fit in this text field.

Comments

Anonymous

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

Anonymous

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

Jon Raymond

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.

Holger P Kleinert

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 :)

marcoreps
>>8989994

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

marcoreps
>>8993927

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

Holger Scade

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

marcoreps
>>8994964

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

Jon Raymond

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>

marcoreps
>>8999230

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_

Anonymous

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

Anonymous

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

Jason Hite

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?

marcoreps
>>9038058

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.