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Date: | Sun, 3 Sep 2000 19:39:02 EDT |
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In a message dated 9/3/00 5:49:05 PM EST, [log in to unmask] writes:
<< Hi guys and gals,
I'm having some problems placing a resistor network component (1206).
Sometimes there is a slight rotational error on placement, sometimes the
component is out in the x axis (at 0 or 180 deg rotation)
or out in the y axis (at 90 or 270 deg rotation).
The machines are Juki 750 & 760 (using laser centering)
Other components are centering fine...
Any ideas???
Help!!!
Justin Braime >>
Hi Justin!
I don't know if you know, but there's two types of chip resistor networks.
What I call a "innie" and a "outie". The "outie" has what looks like leads
for the terminations, like my ascii drawing below:
_ _ _ _
_) (_) (_) (_) (_
| |
|_ _ _ _ _|
)_( )_( )_( )_(
A "innie" has castellations for the terminations...
_ _ _ _ _
| (_) (_) (_) (_) |
| _ _ _ _ |
|_( )_( )_( )_( )_|
The "innies" you can program like a 1206, the "outies" you have to program
like a leaded component, because the laser sees the body and then the "leads"
off of the body...
Let me know if that doesn't work...
-Steve Gregory-
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