Author Topic: screen printing video  (Read 1883 times)

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Offline siliconmix

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screen printing video
« on: July 13, 2012, 08:31:49 am »

wouldn't be too expensive to set up

Offline chrome

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Re: screen printing video
« Reply #1 on: July 13, 2012, 05:25:56 pm »
I don't believe any professional company uses this method, there has to be a better way right?

Especially the bricks part.

The voice over was kinda hard to understand at some/most parts.

I LOL'ed at the "SUCCES!" at the end though.

Offline SeanB

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Re: screen printing video
« Reply #2 on: July 13, 2012, 05:46:15 pm »
Well, the factory setup was done on a shoestring, using whatever was around. They are doing something right, as they are still in production, and are pushing out product. Perhaps not exactly correct OHS wise, and possibly there should be more done with the waste stream they generate, both solid and liquid.

Loved the hairdryer for all purposes, who knows, they might even use it to dry hair as well in the evenings.

Offline codeboy2k

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Re: screen printing video
« Reply #3 on: July 13, 2012, 08:07:43 pm »
I think this method might be really good for making PCB's at home too.  Screen printing is way easy, if you've never taken a college art class about screen printing you should sign up and have a go, if you want to make PCB's this way.

In the past I did screen printing with an Xacto knife cutting away at acetate or some such to make letters, which we subsequently printed on T-shirts.  I liked the way they did it using the UV paint emulsion on the threads and washing it away to make the positive artwork from the negative (which looks like a photo negative, which is also very easy to develop yourself in a darkroom)

Being able to use the same screen printing technique for the resist, soldermask and silkscreen keeps your chemicals and station count down at home. Plus almost everything can be done in the open light, and hardened under UV, and that makes it easy to work with.

They are using a screen with 120 threads-per-inch (0.008333", a little more than 8 mils), but it's probably not possible to get 8/8 line and spacings, maybe you can get 10/10 or better.

I don't make boards anymore at home, but when I did I used a photographic method, with photosensitive boards that I coated myself and contact printed artwork on light sensitive A4 sheets from Kodak. Back then (70s. 80s. ) I didn't even do soldermask or silkscreen legends, even though at that time I did have experience with silkscreening, just not on PCB's :)


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