PCBs, Color marking, Nanoparticles, Focal point diameter, Lightburn w/ EM-Smart MOPA Fiber Laser
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- เผยแพร่เมื่อ 13 พ.ค. 2024
- Site link: em-smart.store/
Item link: bit.ly/42ovsf6
EM-Smart is currently running a huge promotion where all machines are on sale. Enjoy $500 off when your laser is over $2999, enjoy $300 off when your laser is under $2999.
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More from me / marcoreps
00:00 Intro
00:40 No Teardown
01:09 EZCAD 2 Lite
01:33 Lightburn
02:13 Color marking
03:26 PCB structuring
06:49 Nanoparticles
07:39 Focal spot size
08:23 High power marking - วิทยาศาสตร์และเทคโนโลยี
Have you tried cutting stainless SMD stencils ?
That would be great to see !
I wonder if Russ at the New Yorkshire Workshop channel could be persuaded to have a go at cutting some stainless SMD stencils too. His cutter is much more conventional, but a pretty meaty affair, and it would be interesting to see what the spot size is.
That's a great idea; let's hope Marco gets around to it.
@@Zadster how thick is the stainless for SMD stencils? My fiber with my smallest lens has a ~0.02mm spot size....
I see a Marco Reps video, and I must click. Thanks for the excellent content, as usual, and your amazing dry humor. 🤣🤣
Thanks for another great video to help wind down the evening. Also, I really appreciate how you go into great detail about limitations, I find that's where most reviewers fail, they focus purely on what it can do, without covering compatibility etc.
I do copper PCB with a JPT 20W MOPA and it works just fine without burning the board. You do want to have the laser moving over the surface and not spending its time in one small spot all the time.
Its funny that i always watch your videos eating. I just got some chips, opened youtube and saw "posted 1 min ago", perfect~
Fascinating machine indeed! Thanks, Marco! 😊
Stay safe there with your family! 🖖😊
Oooo, New reps video. Great thing I start work late today ☺️
Neat results :-) love your style.
I just knew that a video was coming this week
new Reps Video, let's gooooooo
Thank for sharing Marco! Our machine come with ezacd software and fully compatible with Lightburn!
And thank YOU for etching! ^^
I’ve also been diving into the PCB laser space, but using a cheap 5W diode laser. In my case I’m using Lightburn’s offset fill to get good edges on my outlines, which seems to work quite well. At least, after I run the KiCAD SVG output through an extensive shell script to invert and flip it if necessary, flatten all the beziers, collapse the layers, and do laser beam width compensation while I’m at it. I use a black spray-lacquer as my etch resist, because it burns off easily but is easy to clean off with IPA.
What I’m running into problems with now is the solder mask. I tried painting a full layer of (acetone thinned) UV-cure solder-mask to the board, curing it in the sun, and ablating the parts that I didn’t want, but the solder mask was proving difficult to burn away when over copper, and too easy to burn through when atop fibreglass, causing charring. Also it smells like 5 flavours of cancer. My next tests will involve using high-temperature spray paint as a solder mask, where hopefully the thinner layer will make it easier to burn though. Otherwise I can invert the mask layers and try using the blue laser to preferentially cure areas of the solder mask.
Double sided alignment and automatic drilling have yet to be tackled, though both should be reasonably straightforward. My machine is just a modified Ender 3.
FYI for those with resin printers, UVtools has a UV PCB exposure method that works decently. I found the contrast wasn’t good enough for my sub-par dry film photoresist, but I bet with a double LCD or a DLP it would definitely be good enough.
I have a similar setup, in my case it's a cheap 500mW purple laser module that i attached to my Ender 3, also using black spray paint. I am using FlatCAM to process gerber files from KiCAD, works pretty well. Layer alignment is a bit tricky, i printed out an end stop that allows me to fine tune the angle of the board so that it sits perpendicular to both axes. I measure the exact dimension of the board and offset the layers so that they sit on top of each other once i flipped the board around. Solder mask is something i've kinda given up on though.
Yes, the topic of boobs is not disclosed😐. As I thought so far, for prototyping it is better than an engraver like Bungard will not work. Etching is also, of course, good and fast enough, but this does not solve the problem with drilling. As for the solder mask, it is easier to remove it again with an engraver. The question is about prototyping, because if I need a lot of the same type of boards, I will order them in China.
@@ElectronicsExplored I tried a 500mW laser, but found it could reliably burn through the etch resist. Maybe that’s just because it’s focus was poor.
@@DevilAgent ah yeah, the other option for solder mask is to use one of those spring-loaded engraving tips. They have low enough cutting forces that it’s probably fine to use on an Ender 3. Though without a dual-Z mod I’ll want to be a bit conservative with downward pressure.
The other big bonus you get from Chinese boards is plated through-holes. There are homemade alternatives like electroless silver plating (fibre laser palladium nanoparticles being another), but they all look like a real pain. My thinking is to stick to China fab houses for complicated breakout boards and finished projects, while diy PCBs should be used to stick these breakout boards together in simple ways, and for making sufficiently simple boards.
Wie immer sehr geiles Video .... ich liebe deinen sense for a verrry drrry humorrrr ... Auch die technische Seite ist echt immer sehr interessant bei dir .. *weiter so ...... *thumbs up
Nice throwback to TF2 ! Loved that game.. Jarate!
hiiii love your vids
That last design you lasered was amazing! You could probably make some amazing phone covers with this, but would it stand up to oxidation against skin oil filled hands? Awesome video Marco!
That's what an epoxy coating is good for. Just mix up some clear and paint it on.
Fever Ray + INLAND EMPIRE = much love
If a bike is vaguely functional, somebody will want to steal it. In college, I had a very beat up yet functional bike which I parked in front of my apartment (a duplex unit with its own driveway). Someone eventually stole it.
Can you do a deep obliterating engraving first and then add color to the engraved surface in a finishing pass?
Great video "as always", I so enjoy your style!
What's the artwork of that meditating mushroom guru? Is it available somewhere/somehow?
It's positively awesome!
Fab as ever.
"Not that anybody would ever consider my beat up daily driver worth stealing"
Laughs in Netherlands.
Did the photoresist removal produce a useable result?
I get the feeling there are different lasers for different specialities; the trick seems to be getting the right one first to pay for the others.
Wonder if doing a bit with the laser and then the rest with etching gives a better result than any of the processes alone
I wounder if we can use the same water puddle trick as that are gonna use with the xuv (13.5nm) Lazer for makeing cpu's
If yes that would be awesome
That is really cool. Now I'm wondering how feasible it would be to make your own. Would probably cost more than $3K, but it sure would be fun.
Thank you for the examples set out here. I am looking to design lasers, and this sort of info is key to a good product.
Can you make a video showing how you added the EMSmart to Lightburn?
please
You should try trimming a resistor with this!
Which is the best setting to make cookies?
Hi guys, long time viewer first-time commenter. Would it be possible to use such a laser for SLS 3D printing? It looks like it has the correct wavelength and power. What are your thoughts on this?
Can you decap a few chips?
I Wonder if you could build some sort of a Laser Mill, by ablating layer after layer.
absolutely. This is how and 2.5d or 3d engravings are done... precision in the Z axis isn't accurate as it's based on how much ablation. XY axis are quite precise if calibrated well
It would be very interesting, direct exposure to the photoresist, but a different laser wavelength is needed.
Why would you expose it if you can straight up obliterate it? Are you into extra steps? :D
@@NGC1433 "Obliteration" is a big problem. So far I have not seen a quick and satisfactory result.
Whats about laser silicon doping?
Rep rep rep rep rep rep 👌🏼
Aw Marco I know a guy who would 100% steal your bike x
Repson, welche 240V LiFePo "Powerbank" kannst du empfehlen, mit gutem Preis-/Leistungsverhältnis?
Gerne auch von einem Hersteller, wo du und ich von einem Sponsorcupon profitieren ;)
I'd kill for one of those inland empire badges.
I want to buy one of these for my university lab but require a safety enclosure. Can anyone tell me what options there might be? (Western Canada)
I notice your homepage's TLS certificate ran out in 2022 :D
lpkf lasers !
7:35 thumbs up for Unexpected TF2!!!
adding some citric acid or PVP to the solution will stabalize the nanoparticles.
If you want to get an absorption spectrum on those nanoparticles, let me know
I thought that I could find for 200$ on ali but not ;)
wait, I just noticed, but when did dickutt stop showing up in videos? What's happened?
Sniping's a good job, mate! 🫙
pls make tattoo work with this machine. thanks.
I think I only understood 0.0001% of this video. Listening to his voice is like staring at a camp fire.
me want
maaan, why do some ppl go out of their way to cause trouble xddd
(I mean stuff like sending death threats to manufacturers _which doesn't solve anything :ddd_)
Do you even sleep? I guess germans really don't sleep...
Sleep is for suckers. 🤣🤣
You can sleep when ur dead
@@Schlimbinger Yup!🤣🤣
Why?
I mean, if you only work 25h/day there is plenty time to sleep. Don't forget: Germans are efficient AF.
Isn't that a girls bike?
It's really fast at engraving edgy images.
Bike engraving copycat ❤ our setup was more professional than yours 😂