Pretty good deal. I and few friends have this one.
http://www.parts-express.com/pe/show...number=374-100 |
Originally Posted by Joe Perez
(Post 749856)
How much do you guys think is reasonable for a good iron?
As an example, with a better tip on it, this unit would probably be "adequate" for building an ECU. If you want a really good iron, this one is the current-gen equivalent of the one I use. It's $83.55. Is that too much to pay to have a really good iron to assemble your $450 ECU with, and that'll last for decades? (And when we do any surface mount soldering? We use an electric pancake griddle. Seriously. It's OK for short prototype runs and the like.) Now, I will differ slightly on the matter of solder. Silver-bearing solder, and especially the lead-free variety, just isn't as good as the old stuff. The absolute best solder for general-purpose electronics work is what's known simply as 63/37 (63% tin, 37% lead). Why is this? Because it's idiot-proof. 63/37 has the lowest melting point of all solder alloys, and more importantly, it has virtually no plastic range. Most solder alloys go through a gradual phase change from liquid to solid as they cool, and so there's a point where, if you move the parts at all, you wind up with a crappy, crystalline-looking joint which is likely to break. 63/37 is unique in that it transitions from a liquid to a solid almost in a single step, so the chance of producing a bad joint is reduced. |
My favorite solder of all time is the radio shack high tech solder which is... 63/37!
Melts quickly, cools quickly, is awesome. http://www.radioshack.com/product/in...ductId=2062718 |
Originally Posted by Matt Cramer
(Post 750379)
(And when we do any surface mount soldering? We use an electric pancake griddle. Seriously. It's OK for short prototype runs and the like.)
I've heard of folks using toaster-ovens for reflow. You're probably the first person I've heard of who uses a pancake griddle. We don't do any whole-board reflow here in the lab, we just use the Metcals and the microscope. And yeah, we do occasionally assemble entire prototype boards that way. I don't think it would be practical for us to reflow them in-house, as you'd need a silkscreen setup to apply the paste (we use a lot of 0402 discretes and really fine-pitch QFP ICs. Applying paste by hand would probably bridge every single pin on the board.) |
We flow entire boards with the griddle. We have stencils made for each type of board to help apply the solder paste. This allows us to rapidly produce reasonably priced prototypes and other testing implements.
A lot of our rework can be done with a standard iron. |
Originally Posted by Faeflora
(Post 750381)
My favorite solder of all time is the radio shack high tech solder which is... 63/37!
Melts quickly, cools quickly, is awesome. http://www.radioshack.com/product/in...ductId=2062718 but get it in .022" Plus their $7 45-watt iron and you're working with what I use every day. I had a better a Weller WLC100, but the wand burnt up and i just went back to my RS iron and plug it into the Weller station. The RS tips are small enough but only last a few builds and round off very quickly. One of these days I'll replace the wand for the Weller again, they had much better tips. |
How about a fuel injector tester/driver? We could use it to test/clean injectors with some sort of preset program...
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Originally Posted by Greg G
(Post 751848)
How about a fuel injector tester/driver? We could use it to test/clean injectors with some sort of preset program...
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We ordered a couple Velman kits (it would have provided a good ready-made option to get started with had things turned out better) and weren't impressed. All the parts were dumped in one big bag with no labels, the board lacked plating so it was hard to get solder to stick, and the one sided board had traces that could easily peel off. So we'll be designing all the learn to solder kits in house and having our own team assemble them.
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Sweet! Thanks for the update! Can't wait to see what you guys come up with :bigtu:
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Sure has been awhile.
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Originally Posted by sixshooter
(Post 796110)
Sure has been awhile.
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99% of the amperage occupy 1% of the circuits?
Oh wait, that's the headlight harness in my '73 F250 :giggle: Way off topic, but someone needs to build a decent 4v throttle body with a TPS that's not 1000cfm but will still bolt to a standard Holley 4150/4160 squarebore carb flange :vash: Put TBI injectors in it and I'll buy like 6 of them. |
I built the MegaStim to ensure I was man enough to build a MegaSquirt. :)
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This has been on back burner - there's a couple other projects going on, but you haven't seen the last of this one. Things on the drawing board include a fan controller and shift light, and maybe some others.
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Now that my airbag is fuxored (removed driver and pass side) I have a light flashing at me I would like to repurpose. And since I don't have an autotragic trans I also have a "hold" light that is bored. I may use a standalone light at some point but I would like to avoid clutter for now and make use of these currently worthless indicators. Since I have two of them they could be sequential.
Lars, Occupying an empty parking lot on the weekend when I could be grinding rubber off of my alloys at Road Atlanta sounds slightly less than inviting. Now if they haven't done it by The Mitty we will disrupt every classroom session with bullhorns. Do you hear me Matt? lol. And Joe Perez will be there protesting the baseless incarceration of the MS3X schematics or some such lost cause. I think he is the 1% or something. I'll support Joe in whatever because I'm a puppet to the master. I drove his car once at an autocross so we're tight. |
Originally Posted by sixshooter
(Post 797928)
I drove his car once at an autocross so we're tight.
Hmm. Occupy Bowling & Grippo? |
Originally Posted by Joe Perez
(Post 797933)
Drove it? You beat my best time of the day by a couple of seconds on the first try. (How embarrassing.)
Originally Posted by Joe Perez
(Post 797933)
Hmm. Occupy Bowling & Grippo?
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Any news on a solder kit? I'm interested if it happens.
Also, any new years deals on the MegaSquirt-III UnAssembled Kit? Thanks. |
Yeah, I didn't get a shift light kit in my stocking and I'm a bit miffed.
I've tried to solder trailer wires and a few other things in the past and it always worked but went poorly. I lack tools and training. Chinese harbor freight iron and the solder that comes with it doesn't help. And having no helping hands always sucks. I PM'd Brain a few days ago about redoing the jumper harness on the MS1 to fit my car's harness because it is a different year from what it is set up for and haven't heard back. I'm afraid to touch the little bitty pins and wires with my skills and tools. It's not that I don't know what needs to be done, but I don't trust myself to do a nice job and I don't want it to be crappy and risk poor connections. |
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