How to make a double sided circuit board using the toner transfer method - Part 2 of 2

[jangeenmajid]

nice job ! very clean and pure

[1787dude]

what was the point of the green stuff???

[0ak1e]

@1787dude The point of the green film is to add an additional layer of protection against the Ferric Chloride etch. You can do it without using the green film, but the quality of your traces will not be as good.

[1787dude]

@0ak1e thanks, i am just getting into this. :D

[vze4p6c2]

@0ak1e what is the name of that green film?

[0ak1e]

@vze4p6c2 It's called Toner Reactive Foil (TRF), I think you can buy it from Pulser directly, however, I got it from Abra Electronics. Good luck!

[shamirahamed4u]

thanks for this video i need to know about the green paper using what its name pls say

[jjppmm29]

why dont you use sewing pins to line it up

[zanak]

you can cut the time by 2 if you etch both sides same time. the way I do it : cut you transfer paper and keep 2 or 3 inches of white space . line up your both faces using light. holdem tight together and put a small piece of tape just in the top of the white space to keep them lined, place the pcb between the two pieces of paper, heat transfer and etch, I've made some tiny double sided boards with fine traces (10 mils) using this method . thanks for the video

[CodfishCatfish]

I agree this is a very informative method. I have tried it myself in the past but later went with the toner on a photo-resistive board. I also drill loads of locating holes and used pins to align. I modified a fish tank bubbler to aid the etching process with a fish tank heater too (works amazing on larger boards). Overall one of the best videos on etching out there, Excellent 10/10

[TheAshchronicles]

good job! I have to do an experiment involving a double layer PCB so I have to etch it myself. Thanks for the awesome vid and explanation. It would be awesomer if you could list down the stuffs you used though.

[JoeGancher]

Bought a package of the toner paper. Didn't get any of the green stuff ?? Hope this works without it !!

[Rstan4]

Awesome product, you really should get paid by them.

It'd haven been really nice if you'd have also added a silkscreen layer, hahahaha, just for fun.

[marcelojr]

How come have you removed the green film? isn't it a solder-resist mask?

[0ak1e]

@marcelojr You have to remove it to get a clean solder surface your components. I suppose I could have removed it only where there were solder contacts but I just cleaned off the whole board. This was a prototype board so I didn't really care about the copper oxidizing.

[bayhoecott]

What thickness of pcb board are you passing through the GBC Laminator.

[0ak1e]

@bayhoecott This was one of the sample boards that came in the PCB Fab kit. It was 1/2oz Copper, .032" thick. The etching really was much faster with the 1/2oz copper. I tried another double sided copper from a surplus store and it took almost 30 minutes!

[gblax123]

Wow this is awesome! Good job!

[RetroRepair]

Though I prefer the photoresist method myself, this is by far the nicest toner transfer method I have seen, excellent job.

[Afroquest]

Great video, thanks.

[jmpattillo]

Those pcb fab guys should pay you for this. Awesome. Did you ever get any of the other double sided registration techniques to work?

[0ak1e]

Thanks for the compliment! I actually stuck with the registration method in the video because it was easy enough and my boards didn't have any problems. Since my pads were fairly large there was enough room for errors in drilling.

[Afroquest]

What are the other registration methods?

[FushioRichie]

Yeah!!! it works dude!!!! yeahhhhhh!!!!

[qwert102030]

Coooolllllllll Thanks man...