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Re: [Paparazzi-devel] First Post: Request for build help

From: Matthew Currie
Subject: Re: [Paparazzi-devel] First Post: Request for build help
Date: Tue, 09 Oct 2007 16:08:27 -0700
User-agent: Thunderbird (Windows/20070728)


Welcome aboard. I have been building Tiny13 1.1 boards in my spare time and if my memory serves me I have completed 14 or 15 of them. The build does look intimidating but as long as you take it slow you should be ok. A small list of tools/supplies I found to be indispensable are below:

Temperature Controlled Soldering Station with Small / Medium Tips ($80-500)
Most of my soldering was done patiently with a small tipped temp controlled station
Pair of High Quality Precision Tweezers ($20)
 These cannot be stressed enough, I was not a believer until I tried!
Solder Paste ($40-60)
Applied in small blobs from a spare 1/8W resistor, this can do the equivalent of adding a third hand
Hot Air Reflow Rework Station ($100-400)
While not necessarily required, this can be a huge help when soldering some of the more large thermal masses, but almost necessary for repair and rework
Optics / Magnifying Setup
I did not use anything during the build, only a basic magnifying lens to verify solder points but I have 24 year old eyes that could abandon me at any minute. Use whatever is comfortable.

We can provide much more detail but a basic example to peel back some of that fear is the 0402-sized resistors can be mounted by simply wetting a pad with solder paste, positioning the resistor into the paste, and reflowing the blob with your soldering iron. This will solder half of the resistor quickly and painlessly. Simply dab a bit more on the opposite pad and do the same.

The ICs are a bit trickier but we can give some specifics. I have made a Wiki page with some photos of my attempts at solder paste / hot air reflow of the main LPC here:

Save the GPS module, connectors, and antenna to the very end as you will find it difficult if not impossible to work around these without damaging them.

Matthew Currie

address@hidden wrote:
Hey All, I have been registered and following the Wiki and this mailing list for some time now. Reading and learning. I must say a very well put together site. I was successful (because it was so easy and well detailed) the instructions for installing Paparazzi on my Ubuntu Laptop (and Mac). CVS and all is working well there.

I am truly stuck though now. I really really would appreciate any URLs, photos, HowTo on building a Tiny 1.3. I went to that Website and bought two of the PC boards a few weeks ago. I bought the Tiny 1.3 BOM (all but the modems). I researched how to build a small Hot Air Soldering Iron from some Radio Shack Parts. But as I look at the smallest of the components it is very intimidating.

I am truly hoping I am not alone and that there are others like me who had to just jump in and start on it who can help me with some instruction. You don't have to do it for me. I am looking to learn. I just really could use a Wiki submission or something to show a few step-by steps on the Tiny. Does it exist and I have not found it?

For the curious, My goad/project is a personal one. Just to get my feet wet. Build a ducted fan based MAV to do aerial images/video. I like the ducted fan for many reasons. I'd like it to be able to take off retract the landing gear and fly the mission.

My motivation is just at 42 and having been working with computers my whole life in IT (DBA mostly) I want to do something fun with computers besides tune a Database or solve someone else's problem. But if you're having Oracle 10gR2 on Linux in a RAC cluster environment issues feel free to ask me I've yet to have Oracle Support fix an issue before I finally figure it out myself here at my work. Consider it my way to help out for your help with this.

So, I'd even gladly edit the Wiki and add my steps I do take (I can take photos and document the process) but really need some guidance. The steps on the page that exists is great for how to solder something like the GPS and antenna I read that a million times. Got it. Need to get just the right solder paste down first before heating....but what about those 50+ other tiny little parts some of which I can't even see in the packaging?

Again, even a simple URL or rough notes appreciated to get me to take the first steps without destroying the parts in the process.

Best Regards,

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