PCB exposure unit DIY 

This video is proof of how when something matters to a person, that person could make miracles happen. This box is SO well finished, I literally thought it was from a store, or at least a factory prototype. Highly inspirational, the fact that you pushed it through and made it, it counts beyond measure, to me... I’m gonna get working on my recent project: shelves for a 7 foot tall 19” rack frame! I really think that you’ve demonstrated just how far our minds can push us. Absolutely motivational and incredible! Thanks!

Wo-ow. Thats just a perfect video. I admire people that are able to make their projects so perfectly, cleanly, and work-able. I didn't know that wood can look like a metal too..

this is still one of the most wonderful DIY project I've ever seen up now, please upload new videos

Beautiful craftsmanship. And glad to see you still have all your fingers.

Excellent workmanship, I haven't enjoyed watching a video for a while

Actually just wrapped up making my first exposure unit when I found your video. Very nice job!

Это просто шедевр! Такую работу не грех и похвалить! Самое главное, что очень нужная вещь, но купить её нигде невозможно. А здесь пожалуйста, вот она и даже лучше, чем могла бы быть!

Great idee to glue the MDF to the hinge, thanks for sharing. Nice result...

extremely neat and professional great work

wow! impressing workshop+tools! and I also like the product and skills certainly! 😉

Well done! Congratulations, thank you for share your skills

Great job, you have a lot of talent!

Very, very nice work. Congratulations!

Superbe réalisation,bravo !

Beautiful wood working ...

Very nice DIY exposure unit

Nice and clean work, I liked it.

Any specs on the LED's looking to make something similar. I just want to make sure I am using the proper lights

0:24 It's all about "safety firts" 😂 Nice Idea, thanks for the video 😊

Amazing job.

Thanks for sharing. Great video.

How well has this worked for PCB's? I'm not clear on whether 395-400nm is high enough energy for the task at hand?

Way better than any industrial or ready made one!!Give some details about circuit....Also share more such electronics related DIY stuff!!

Super skills!Very impressive!Quick and dirty!

Very nicely done! As others have noted, an interlock switch in the lid to turn off the light and pause the Arduino would be good safety enhancements. I'd also test the LEDs to be sure they all work before cutting and installing them. So how well does it work? Can you make boards clean enough for 0.5mm runs and 0402 SMD parts with the box?

you are a master of wood! My low budget variant is an old scanner housing made of plastic, inside are UV Tubes from a "Toaster" Ballasts are from dead energy safing Bulbs and Time makes a 555. It works too ;)

I haven't found UV LED strips with s/m 360nm.. so it won't be working efficiently. all the strips I've found around the Ali has s/m 395-405nm only. Please let me know if you find the ones.

Really good design I just built one on your design but put another set of LEDs in the lid to make double sided and made a vacuum Frame with square Aluminium tube and Mylar to suck down on the board but forgot about the power supply as both set of LEDs take 2 amps each also put relays in to switch lamps from Top, Bottom or both

Looks awesome!

ottimo lavoro complimenti

Bacana, muito bem acabada ficou profissional.

amazing! please more of that!

Hi! I would like to know what kind of paint did you use to cover the box! and the wet sandig, too. thks!

Great woodwork. Not sure if your LEDs are cooled well being sticked to the plastic sheet. Also I would paint internals of the case into deeep black to avoid any reflected UV light to reach the exposed PCB.

good work,,,,either they r common leds or some special ultra violet?

Nice job.

You could do the same by finding (usually for free) and dismantling an old flatbed scanner (parallel-port ones from the 90s are pretty much useless nowadays). They already have the glass, the box, the cover, and the sponge: all you need to do is to remove everything from the inside and place the LED panel on the bottom.

Yeah! Safety FIRTS (or farts?)! That's where this guy's bandsaw skills are from. Btw, the box came out great! Really nice!

Me podria desir los elrmento que usaste gracias soy jose de argentina

Very nice ! From Brazil.

Cuáles son los materiales que sw utilizaron en el proceso de elaboración de la insoladora y cuáles son las medidas de la misma

Please provide guidance on how to adjust two trimmers. I am still debugging but my lcd backlight works but no text.

​hi, tried to upload code to arduino nano, i got sketch uses 4398 bytes of the program storage space, maximum is 30720 bytes, how to upload please?

just like pro ,nice

Very well built. I didn't catch a safety switch for the lid, though. I hope you fitted one. Not good to look at UV LEDs when running!

Good work! Nice Video thank you :)

Thank you for showing exposure box sir I learn about it how about my Patten the Lamp above the light show down 10 inches distance so process at the screen image lower part what time need to expose thnx again

Sou do Brasil, quanto fica para você mandar para meu pais. Frete e custo da máquina?

nice box but lacks of optical background: 1 to obtain the sharpest possible projection you must use a single point led (with or without collimating optics, otherwise you lower the etandue = making a lot of semishadows) 2 uv source has to have spectral characteristics matched to photoresist (in my experience very powerful but soft uv lamp doesnt polimerize the film well, but correct led works perfect even with low intensity (that was a must to success in 0.1/0.1mm traces with 50um film))

NICE WORK

Very nice craftsmanship. I was jealous until I saw your soldering ;p Perhaps consider raising the LED panel so that it's right up under the glass and using quartz glass or some other UV transparent material. The light will be less spread out and more intense. Less diffusion means the light stays more columnar between the sheet with the PCB artwork and the photoresist, leading to sharper traces. Having the LEDs closer and using a glass that doesn't block as much UV will also shorten the exposure time and shorter exposure time will also lead to sharper traces.

Can I use this to cure powder coatings on MDF?

Please, what is the background music you are using?

Good job

Super work!!!!

Hello! Awesome project! I am building something very similar (some differences since I started from scratch a while ago and just seeing this). I am wondering, since I am building this for photographic purposes, did you find you had hot spots on your exposures? How did you find the spacing and distance to glass for the LED's? Just a lot of testing? Thanks!

**super brother , I 'm your fan.**

If this would be a commercial product and I just watched how it was made, I would buy it.

absolutly magnifique :)

Very nice job.....

Thank you for sharing this awesome video .. how long did it take you to make from start to finish total? Great project dude!

Fantastic!

Such lovely fingers.

Awesome, dude!

Nice great job

Ough.. Awesome project... would you share the arduino program and the wiring... that perfect for my project, adjust timer using POT... thanks before... :)

great job man. i just rushed to instructable to download sch. uploaded the code in uno.... done uploading, hope it will work.

Looks pretty neat.But does it actually work?

Great work , design is not easy

very nice job please give the idea how to make a UV EXPOSURE FOR POLYMER STAMP

Great Hats off to you

Good job....

Awesome! There is no need to diffuse UV light?

Good job excellent

Amazing job!!!! is there any chance that you share your schematics and wood sizes?

i'm your fan!

Fantastic design, both mechanically and electronically, congrats. But *COMPLETELY MISSING THE MOST IMPORTANT INFORMATION,* or I could not find it: where is the test petern of certain size realized, what are the results? *What is the minimum track width that can be reliably realised on this UV unit?* This design is like a beautifull car from outside but we know nothing about it's performance.

You could use a case from a used scanner. This is much simpler and more rational. But your result is pleasing.

please,Ask for the source of the leds ?

great

Great vid! where did you get your UV LEDs

Show!!!!! Parabens!!!

Why the magic smoke? What went wrong?

Why did you use brass for power rails? Is there any advantage over copper?

If your not bothered by straight cuts, use the table saw in the first few minutes. The guide pushes to the left or his right when finishing a cut.

if i dont have uv led, it will work if using super bright led (not uv) for exposing pcb?

Superb

very nicely done (Y)

What products do you use to make the wood look shiny with that metal look? (sorry for my English :-D)

Why did it smoke ?

something like '3w star uv led 370nm' or so on ebay. 400nm is not enough (my resist glowed bright green at correct led). anything random even like tanning bed lamps made crap (+long exposure). correct led needs no more than few seconds (no more than 30 at all)

cool bro 👍

hello, what is the wavelength of the uv led? is it 365nm or 395nm?

That's a beautiful finish on the paint, I'd like to know more about how you did that

Awesome

sir I want this products can you book a order

There is only 1 thing to add to this PCB exposure unit: front-panel labels. Otherwise, it's amazing.

woah! im normally not a safety nut. but cutting a bevel with the blade tilted toward the fence is just begging for a serious kickback accident. I know from experience, and i was lucky to get away with only a bruise from the wood hitting me.

Try to use limit switch if uv light is not good for eyesIf not Skip that

you could use an old scaner