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I can't believe I never posted in this thread!
I'll be PMing you later today.
You might want to make a classified section thread for them if you're going to send them out. I've seen the mods go both ways on that sort of thing.
Awesome! My 555 boards shipped my direction today, should get here friday or so. I'll post pictures
Gotta learn SMD somehow. SOIC-8 and 0805 are good learning bits.
I made mine SMD for just that reason, I'm going to see if I can sell a couple as "Learn SMD and build something useful" kits.
They're also useful in that they can be run at 12V for switching MOSFETs if you don't want to control fans.
I thought about putting those on the 555 thing, but they're so big I could have done through-hole at that point
I Did It Wrong and started with 0402. Those things are a pain.
Maybe design the board to be able to use either through hole or SMD? I sometimes see that approach on production hardware and whether they use SMD or through hole depends on component availability.
As soon as the parts get here, these will be in the classies as kits for learning SMD and building a fan controller!
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Definitely will still be cheaper to build your own, as you don't have to pay for my time packing things up, collecting parts, part shipping to me, etc.
The kits should be pretty cheap though.
Let this, and Whitehawk's boards, be an inspiration to people who want to make their own boards! I haven't had any formal training in this at all, you can learn it too
The trick to 0805 soldering is, get good tweezers.
Then you put solder on one pad, let it cool, get the part lined up with its pads but slid over enough that it is resting flat on the surface of the PCB, not on the little solder mound. Hold it with the tweezers, melt the solder and slide the part into it. Let the solder cool, then solder the other end.
That goes for SMD chips, too. Do it with one pin, get the other pads aligned before you solder more than one pin, then you're home free.
That's one of the great mysteries of life.
I was wondering about that too, I have no idea. I think I must have plopped two through hole resistors down and then the pot, then realized I only needed one resistor.
Hmm, totally missed that. Looking at the 555 schematic it should still work. I'll have to breadboard it to make sure.