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Old 11-10-2015, 12:29 PM   #41
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Seriously, I hand solder 0402s without a microscope.
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Old 11-10-2015, 12:44 PM   #42
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I just lay them on the board and then will the solder into place with my mind. Chuck Norris is jealous of my mad SMC skillz.
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Old 11-10-2015, 12:46 PM   #43
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I believe that. But the pins on the max922X are ******* small. Way smaller than the 0402.
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Old 11-10-2015, 12:59 PM   #44
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just tape it in place. scotch.
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Old 11-10-2015, 01:10 PM   #45
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Quote:
Originally Posted by aidandj View Post
I believe that. But the pins on the max922X are ******* small. Way smaller than the 0402.
For those, I did use the good microscope at work. It's not so much the size as the pitch- there's not much space between the pins.
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Old 11-10-2015, 01:11 PM   #46
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0402 isn't bad. I have super shakey hands so placing them sucks, but the soldering isn't bad. But mother ****** those pins are small on the max.
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Old 11-10-2015, 01:16 PM   #47
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I can solder tiny chips with no hands.

I just put it in my toaster oven and snack on solder paste as I wait, that stuff is tasty on ice. **** RoHS, they take my trans fat they ain't taking my paste.
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Old 11-10-2015, 05:20 PM   #48
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I don't have any experience with surface mount components and pretty limited experience with soldering. I do a lot of clusterfucky stuff with wiring, not so much with circuit boards and 0 with SMCs. I learned to do some through hole components at a summer camp when I was 12 and in college. I've got 3 chances to get it right, hopefully one sticks.
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Old 11-27-2015, 03:03 PM   #49
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I thought that at least the NB sensors already generate a square wave. Never checked though. Not sure if it's 12V or 5V. In any case, just running it through a double inverter should get a nice square 5V signal. I'm not even sure why we go through all the signal conditioning trouble with the MS, other than the signal conditioning circuits are already there when following the assembly instructions, so we may as well use them.

Somebody who actually scoped the signals and understands what the MS conditioning circuitry does, please correct me!
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Old 11-27-2015, 03:11 PM   #50
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And on the soldering:
I'm too old and have bad eyes, shaky hands and all that good stuff. Trying to hand-solder 0402 components is totally frustrating under those conditions.
So for SMD I usually get a stencil from oshstencils. Spread some paste, add components under a $25 Ebay microscope, bake it in the old toaster-oven for a few minutes and Bob's your uncle.
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Old 11-27-2015, 03:58 PM   #51
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Did someone say scope?



Not sure what sensor your referring to. Both the ABS and Speed sensors output a VR sensor sine wave.
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Old 11-27-2015, 04:18 PM   #52
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Doh!
I was referring to the CAM and CRANK sensors. Didn't even consider ABS and Speed.
Never had any issues with my speed sensor though. Seems to be reading accurately and reliably. My '99 doesn't have ABS, so that's pointless to check.
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Old 11-27-2015, 04:23 PM   #53
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This is for driving an NB cluster when you don't have a speed sender. Or using ABS as speed inputs into the MS.
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Old 11-27-2015, 04:32 PM   #54
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Now this whole thread finally makes sense to me!
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Old 11-29-2015, 12:44 PM   #55
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Glad to see some rusEfi stuff here
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Old 11-29-2015, 12:46 PM   #56
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Thanks for your stuff russian. I'm kinda interested in doing a rusEfi build. Next miata I build will probably attempt to run on one
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Old 11-29-2015, 05:07 PM   #57
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Man, all this talk about soldering under a microscope... My hands shake so much I've always been proud of how decent I could solder regular sized things lol.
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Old 11-29-2015, 05:35 PM   #58
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Quote:
Originally Posted by Schuyler View Post
Man, all this talk about soldering under a microscope... My hands shake so much I've always been proud of how decent I could solder regular sized things lol.
Get off the crack. It stops the hand shaking.
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Old 11-30-2015, 12:53 AM   #59
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Quote:
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Get off the crack. It stops the hand shaking.
My hands only shake when I get off the ethanol.
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