13 Aug
2006
13 Aug
'06
2:07 p.m.
On Aug 12, 2006, at 4:40 PM, der Mouse wrote:
"Build-only" designs? My past TWELVE designs were pure SMT except
for connectors and some crystals. Each and every one was prototyped
and debugged until working. The worst-case took ONE etch rev.
Why? Because I pay attention to what I'm doing. See below.
Well again,
like I said, it's *different*. [...] When I buy a bag
of 0.1uF bypass capacitors in through-hole packages, for example, I
open the bag and dump them in to the parts drawer. When I buy a reel
of surface-mount 0.1uF capacitors though, I leave them on the reel
and store the reels in much larger parts drawers. You remove the
parts from the tape one at a time as you use them...at that level
there's no need to look at the parts themselves to identify them.
At that point, no. But that's treating the boards as build-only
designs, which makes about as much sense as writing write-only code. When you're trying to figure out what's on an
existing board, or when
you're trying to figure out why something doesn't work and it's because
you put a wrong-value part in place, markings are important.
Yeah. You actually have to pay attention to what you're doing. What
a concept. And when you screw up because you weren't paying attention,
you actually need some troubleshooting skills. Wow, another neat
concept!
-Dave
--
Dave McGuire
Cape Coral, FL