Metacafe hacked flashlight laser

Etching is certainly doable for THT and low-density SMD, but for high resolutions it is hard to do repeatably without a fair bit of equipment. Depends on etchant. I used to get very fine results with dilluted ferric chloride. Even a 20W q-switched fiber laser can do it nicely. It does tend to lightly blacken the PCB, but most of that is just copper or copper oxide particles and much can be wiped away.

The substrate remains nonconductive as verified by my megaohmmeter at V. There are a couple of solutions out there, but the material availability is prohibitive for DIYers. You also need to switch to a copper chloride etchant, dehydrate the photoresist post exposure, control the development cycle accurately, etc. It took us several weeks to get it stable on professional equipment with high-quality film masks in a cleanroom. Of course the professional systems have more power and scan using an array of galvos.

I have used black paint sprayed onto the copper board and etched with my Ortur laser and the results are stellar. See how I vent my machine out a basement window via 4 small holes in window frame. Looks good. Thank you. Two, and print both sides at the same time! Maybe use two laptop screens and sandwich your pre-sensitized board between them?

You need a resolution of dpi or better for a decent PCB. Also photoresist wants nm light with substantial power. And of course, the image must be perfectly focused and distortion-free. Now guess why advanced hobbyists still make contact copies with an old-fashioned UV lightbox….

Lots of such videos on the tube. It is amazing how many solutions people have thought up for diy pcb. Useless for tiny stuff like MSOP with 0. With the classic contact printing method there is no such scattering, because the ink or emulsion side of the mask is in direct contact with the photoresist. Have you tried making a pcb inductor?

Perhaps you could try stacking bifilar coils in an alternating stack of pancakes? It seems like a 0. Also a nice solution. I know a few guys that built this 7 years ago and this inspired me. They had issues getting the focus equal over the full with as the lens Was not made for Blue Light.

Anyway, for small Boards this is no issue. I might try multi-layer PCB process with a similar technique. That is the conundrum these days.

TacoNut , Jul 13, Zombie Runner , Jul 13, That's badass! ST77 , Jul 13, Doesnt look like I have a spare DVD burner That would be a sweet device to have. Yeah yeah, I know. Hell Yes! Where do I sign up? Far right. I just so happen to manage an electronics and battery recycling company.

JDMcQ , Jul 13, Will Hooters allow us to solder at the tables? I have a cordless, butane soldering iron. Show Ignored Content. For the love of God If i had money to drop on a dvd drive Can I just power the laser diode with 2 AA batteries to make it burn things?

Hey dumbass, we just did it. Cool, but too complicated for the average person. Wow thats nice and dangerous cool. Use a blue ray diode! If you have an old hardrive you could use the diode from that. Or laptop. Dont talk so fast and go through it so fast youre goning to confuse people. Didn't work! Mine looked like a lens with some copper wire around