PCB Making-Part 3-Photo Resist Method of Etching a Printed Circuit Board

Part 3 in a series of informative how-to videos of my personal experiences with photo resist etching method of making precision printed circuit boards at home

While designing and building my first prototype of a BLDC Hub Motor Controller board for my e-bike, I documented the whole process on video from start to finish which you can now watch in HD 720p.

In this part I show you how to expose the board to UV light source to transfer image onto coppler clad.

I expose the board for 5-7 minutes of UV light coming from a 250W SUNLAMP.
Once completed you can actually see the layout pattern on the board before placing in the developer tray.
Remember the coating is light sensitive.
The developer is MG Chemical Cat-No. 418 and says it is for use with 600 series boards.
It is mixed with ten parts tap water and is reuseable so don't throw away.
It will turn really dark when it can't be used anymore.
Wear a rubber glove if you are placing your fingers in solution.
Rinse board with cold water after developing.
This will set the coating and prepare it for the etchant.

In the next video I will show you how to etch the pattern you now have on the board. Check it out. http://www.youtube.com/watch?v=KU_gtZmEgMM

The last part in the series shows the completed controller as well as a few other PC boards made including CNC stepper motor driver and a couple other neat electronic projects I have built to date.

©Copyright 2010 D.C. Boyce. Cranial Sponge Productions.

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[jackwall5]

Excellent detail here. Great tutorial thanks

[X2YeZCAMCNC]

@jackwall5 Thanks

[prashan1991]

nice work... thank you a lot...

[EV6475000]

@EV6475000 I figured it out, GC Electronics makes it. I ordered one and finally received it, for the price I am not all that happy with the quality. I should have fallowed my initial gut reaction and made one myself.

[EV6475000]

That is a really nice contact frame, do you remember where you got it? I cannot seem to find it anywhere.

[Keyframe3D]

Great video! How thick is the copper on a plate? Is that variable among boards?

[X2YeZCAMCNC]

@cristoretornebiblia I am sure there is such a program but in the end you don't learn how to layout board. I get more satisfaction if I make it myself. I learned by doing. Also by having a mentor or two showing me a few tricks at my first job. That is the best way. Also someone who will tell you all the things to look for will save alot of time. Electronics gurus are going by the way side because programs do everything for people. Keep watching my vids for more electronics talk.

[cristoretornebiblia]

@X2YeZCAMCNC Im 24 so you been doing E for many years before I was born. Can you give me tips please as Im new to electronics, I repair tvs, motherboard, monitor, but just know the basics like multimeter changing transistors, mosfet, caps, resistors. I was told electronics is dead and al gone to china because they make things cheaper. When you degisn and repair circuit boards cannot a computer programme just degisn the circuit board if you put all the inputs?

[X2YeZCAMCNC]

@cristoretornebiblia 35 years in electronics and I design build and repair circuit boards of any kind

[cristoretornebiblia]

@X2YeZCAMCNC Great, Can you tell me how many years you been into Electronics? Your shop is excellent id love to work in a unit as that, what kind of repairs do you do and what are the most common tasks you undetake in your shop? I subed to you..