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Old 03-24-2020, 06:53 AM   #161
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You have your own wave solder machine?
Nope I'm doing it all by hand with my cheapo soldering station, a new tub of flux, and some new (to me) techniques.
I did run into one capacitor I couldn't do so I ordered a larger footprint part, can you spot it?
IMG_20200319_182939.jpg
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Old 03-24-2020, 08:43 AM   #162
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Originally Posted by brokedown View Post
Nope I'm doing it all by hand with my cheapo soldering station, a new tub of flux, and some new (to me) techniques.
I did run into one capacitor I couldn't do so I ordered a larger footprint part, can you spot it?
Attachment 42440
Damn, that's tiny and I came from electronics manufacturing. I left in 2000 tho and Bose (speaker dudes) were way behind on technology. Before that was military radios and they weren't too concerned on miniaturizing. You'd think the space program (another job) would have been but that was power supplies for satellites. That little cap wouldn't survive power-on.

Do you happen to know what size it is? Smallest I've worked with is 0402. Smallest I recall seeing is 0201. Yours especially requires specialized equipment. I used to be certified in Mil Std 2002 soldering.
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Old 03-24-2020, 09:40 AM   #163
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It's an 0201. It should have been an 0805 but someone made a parts list with the 0201 for whatever reason. Honestly I've lost 5 or 6 of those just getting them off the tape, they disappear into the air. I've tried several times to use flux to stick them to the board but they end up lifting onto the iron ever time.

I'm getting handy at the 0805 parts. I'm only doing one or two components per day as time allows but I'm slowly making progress!
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Old 03-24-2020, 07:59 PM   #164
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Originally Posted by brokedown View Post
It's an 0201. It should have been an 0805 but someone made a parts list with the 0201 for whatever reason. Honestly I've lost 5 or 6 of those just getting them off the tape, they disappear into the air. I've tried several times to use flux to stick them to the board but they end up lifting onto the iron ever time.

I'm getting handy at the 0805 parts. I'm only doing one or two components per day as time allows but I'm slowly making progress!
That looks a lot smaller than I remember.


Use a bit of glue. Use tweezers too.


https://www.amazon.com/gp/product/B0...NIXZHJGI&psc=1
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Old 03-24-2020, 09:20 PM   #165
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Originally Posted by Brewerbob View Post
That looks a lot smaller than I remember.


Use a bit of glue. Use tweezers too.


https://www.amazon.com/gp/product/B0...NIXZHJGI&psc=1
That is a nice tweezer set!
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Old 03-25-2020, 09:30 AM   #166
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I went ahead and bought those, should be an improvement over using a bent strand of wire to try to hold things in place!
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Old 03-25-2020, 01:37 PM   #167
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That is a nice tweezer set!
They are cheap and bend easily. Just be careful how hard you squeeze and you'll be good. It's not like you want to go squeezing caps hard anyway since they tend to chip.

I bought the set for the impending splinters once I start in the real interior work.
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Old 03-25-2020, 11:01 PM   #168
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They are cheap and bend easily. Just be careful how hard you squeeze and you'll be good. It's not like you want to go squeezing caps hard anyway since they tend to chip.

I bought the set for the impending splinters once I start in the real interior work.
We have a number of stainless steel twees]zers for the splinters. Now ... where are they???
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Old 03-26-2020, 07:14 AM   #169
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What is an afterburner on a diesel heater and why would you use smd components... Not sure , maybe your schematic is that filled with components and you absolutely need it in a small box otherwise going a little bigger might make it easier to repair. Kind of the pre 2003 bus theory.
I just installed a differential temp controller in our greenhouse that pump the warm air from the greenhouse in my shop . just uses a 741 and a couple of r and c. Even used a socket so I can replace the 741 in ten years when it fails for who knows what kind of reason.

Good luck your project.

Johan
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Old 03-26-2020, 07:59 AM   #170
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The Afterburner is an open source replacement control module for chinese diesel heaters. it gives you a ton of features including wifi and bluetooth control, an RPC interface for sending commands, and fine tuning of your combustion based on sensors. The guy who created it has published gerber files to get your boards made, and it uses surface mount components. It might be a valuable exercise to create a new board that only uses surface mount where necessary and through-hold everywhere else. A few of the components only exist as surface mount, such as the ESP32 module. Those aren't the tough ones to solder in, although they do take patience and some technique.

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Old 03-26-2020, 11:03 AM   #171
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Yeah, don't feel bad, I was lost too for a moment.

When you said afterburner, I was thinking an incendiary device that would attach to the exhaust of the heater to produce more heat/clean up the smoke. You know, like the things on fighter jets that throw huge flames out the back?

I thought, wth kind of lunatic would come up with this as a solution to soot issues in a heater, and if these heaters have that bad of soot issues that they need this device, why would anybody use one.

Now I realize it's a controller for the heater to run the heater better
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