[johnwmclean]

Quote:

Originally Posted by jtostenr /img/forum/go_quote.gif Just finished populating 4 Beta 22 boards the other day. Well, except for the MOSFETs, since I don't have the heatsinks yet. Still need to clean the bottom of the PCBs, but haven't decided what cleaner to use. Is there any reason to clean off the flux residue besides the fact that it looks a bit messy? Never uploaded pics before, so I hope this works.... Jeff

Looks good, cleaning flux off also removes solder splutter that gets caught up in the flux. Depending on the severity of the mess, pieces of solder could cause a minor solder bridge.

How to Clean Circuit Boards

 

[mp101]

I hope when I eventually build any of my audio kis they look half as good as any of these here

 

[Steve Eddy]

Looks great!

Where'd you get that nice phenolic board stock?

I can't find that stuff anywhere here in the States anymore.

k

 

[Fred_fred2004]

Is that what its called

I got it from ebay a while ago

 

[Emooze]

I finally got around to putting the LED's in my M3:

Can't quite get the effect of having the lights off but I did my best:

I assure you, the whole piece of plastic lights up, I just never wanted it that bright.

 

[Steve Eddy]

Quote:

Originally Posted by Fred_fred2004 /img/forum/go_quote.gif Is that what its called I got it from ebay a while ago

Yup. It's made from laminated sheets of paper with a phenolic resin binder. Personally I much prefer it to the fiberglass/epoxy based FR-4 which has become de rigueur these days.

Sadly, I contacted a circuit board manufacturing house a while back asking if they could do some boards for me using that material. They didn't even know what I was talking about.

*sigh*

k

 

[balderon]

Quote:

Originally Posted by Koyaan I. Sqatsi /img/forum/go_quote.gif Yup. It's made from laminated sheets of paper with a phenolic resin binder. Personally I much prefer it to the fiberglass/epoxy based FR-4 which has become de rigueur these days. Sadly, I contacted a circuit board manufacturing house a while back asking if they could do some boards for me using that material. They didn't even know what I was talking about. *sigh* k

I have dealings with San Diego Plastics a long time ago. I don't know if they offer anything of PCB quality but it might be worth the time to give a call to sales.

 

[FooTemps]

is that a 00 gundam? or maybe the master grade exia?

 

[Steve Eddy]

Quote:

Originally Posted by balderon /img/forum/go_quote.gif I have dealings with San Diego Plastics a long time ago. I don't know if they offer anything of PCB quality but it might be worth the time to give a call to sales.

Thanks.

It's easy enough to find phenolic laminate here in the US. In fact, the Garolite brand sold by McMaster-Carr is even made here in the US.

It's finding it copper clad that's the problem.

Though I have had thoughts of doing my own circuit boards by using some LE grade, which is like the paper version but instead uses fine weave cotton cloth and phenolic resin.

Then I'd have the individual circuit board traces photochemically machined from some 0.01" thick copper sheet, which would then be attached to the laminate using PCB eyelets.

How's that for crazy?

k

 

[Edwood]

Quote:

Originally Posted by MisterX /img/forum/go_quote.gif Unless they take some major steps to improve their quality control I would strongly suggest avoiding Cam-Expert. This is the best panel of the batch I received today----> http://i23.photobucket.com/albums/b3...e/IMG_5349.jpg The other panels were somewhat less then...... http://i23.photobucket.com/albums/b3...e/IMG_5358.jpg Nice huh? Edit: In case you are wondering this is the third (and last) time I have received panels that look like this from them.

Wow, What, Marshall?

Did they use a monkey to dremel those by hand using a paper print out of your FPE file?

-Ed

 

[MisterX]

They said there "was a mistake in the machine software" but they didn't really offer much of an answer when I asked if the machine software was responsible for packing and shipping panels with obvious visual flaws.

To their credit they were pretty prompt about sending replacements so.....


http://i23.photobucket.com/albums/b3...e/IMG_5377.jpg

 

[nickyboyo]

Those replacement panels look fine, nothing a bit of emery paper wouldn't make more than acceptable. The first pieces provided are shockers, a decent miller would never release those as a final product.

 

[DKJones96]

With the USB socket in the hole I bet 99% of customers wouldn't even notice that flaw. Not saying that makes the quality okay, just saying the vast majority of people wouldn't even notice it with the unit built.

 

[krmathis]

Quote:

Originally Posted by MisterX /img/forum/go_quote.gif To their credit they were pretty prompt about sending replacements so..... http://i23.photobucket.com/albums/b3...e/IMG_5377.jpg

Those sure look a lot nicer than the previous ones.

 

[Mr.Duck]

Quote:

Originally Posted by MisterX /img/forum/go_quote.gif They said there "was a mistake in the machine software"

Even so, if I had produced somthing like that, I would be so pleased with myself