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Crusty1
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Re: Fritzing
Crusty1   10/16/2013 6:31:04 AM
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@ David, Max

The EE-Times  link is here http://reprap.org/wiki/PCB_Milling

Funny thing the link was in one of your posts.

Klick to the section on Fritzing, I especially like it as it is available for Mac OS.

They seem at home with SMD, so I am very much going to give it a go.

@Max if you can with stand furthur articles from Crusty Mansion's then I will write a piece about getting my first Fab done by Fritzing?

Direct link is http://fritzing.org/

Best Crusty

David Ashton
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Re: Fritzing
David Ashton   10/16/2013 5:42:41 AM
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Hi Crusty....  "May be Max would like an article on starting out with Fritzing?"

I'm sure he would, but best get it from the horse's mouth.

Meanwhile, could you post a link either to it or to the EET article where you saw it?

 

Crusty1
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Re: Ferric Chloride
Crusty1   10/16/2013 5:00:55 AM
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Hi David,

At the level I am working at in retirement I think I am going to get my first PCB fabed using Fritzing, Just seen the link here on ee-times. I like the intuitive bread boarding approach and they have a 6502 processor outline already so the shield I want to build for the Papilio One to emulate the UK101 looks a distinct possibility.

May be max would like an article on starting out with Fritzing?

David Ashton
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Re: Ferric Chloride
David Ashton   10/16/2013 4:39:09 AM
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@Crusty1 thanks....re SMD I did something with them not too long ago and successfully used my Niche PCB designer for it.  There might be something on that in the not too distant future.  You're certainly more adventurous than me with new stuff!   I'm not yet on pension but have a wife and a mortgage....'nuff said....

Crusty1
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Re: Ferric Chloride
Crusty1   10/16/2013 3:48:52 AM
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Hi David,

Much the same circuit board development time line for me. I somehow seem to be stuck in the Veroboard trap, I use Tiny Cad to capture the circuits and VeeCad to layout the Veroboard circuit, saves a lot of heart ache from putting a link or hole in the wrong place.

Now I am getting forced to use SMD footprints I have got my head around Eagle but not yet Design Spark, I like Cad drawing system that give a 3D view of the components and circuit, but free versions seem hard to find, or ones not with some user limit. My pension makes me a miser, just as I was when I had only pocket money.

Good Article forgot how the Dalo pens inked up my fingers.

David Ashton
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Ferric Chloride
David Ashton   10/15/2013 6:04:09 PM
Fossicking aorund on the internet, I found the "mystical bubbly reaction" that makes ferric chloride:

Hydrogen peroxide can reduce iron(III) ions to iron(II) ions:

H2O2 + 2Fe3+ -----> 2H+ + O2 + 2Fe2+

If you really want the full equation, it would be

H2O2 + 2FeCl3 -----> 2HCl + O2 + 2FeCl2

I see it turns some of it back into Hydrochloric Acid (HCl) which must be why it was so unkind to clothes......

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