= wrote: > On Tue, 24 Jul 2018, John Doty wrote: > You may have different symbol libraries for prototype and production. >=20 > How would these symbols be different: in top-level attributes, in pin=20= > attributes, in pin geometry, or in graphical design? >=20 >=20 > --=20 > Sent from my Android device with K-9 Mail. Please excuse my brevity. John Doty Noqsi Aerospace, Ltd. http://www.noqsi.com/ jpd AT noqsi DOT com --Apple-Mail=_AC46AAC5-34FE-494F-9DE0-661F149DECB8 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8

On Jul 25, 2018, at 1:18 PM, Bdale Garbee <bdale AT gag DOT com> = wrote:

I'm curious about this too, because I work really hard to not = have anything change at this level between prototype and production, = myself=E2=80=A6

When = you=E2=80=99re designing stuff to go into space, prototype parts have to = be things you can acquire without too much delay. Production parts often = have to be blessed by the shamans. These are incompatible = requirements.

I=E2=80=99ve worked on = missions where we were allowed to tell the shamans to go away and leave = us alone, and the resulting electronics worked fine in space. Production = boards were identical to prototype boards, but with more care in = inspection and testing. Saved time, mass, and of course money. The = spectacularly successful HETE-2 was largely constructed of prototype = boards upgraded to flight status through inspection and testing after = the failure of HETE-1=E2=80=99s launch vehicle. But the shamans don=E2=80=99= t want to hear things like this.

Bdale
On July = 25, 2018 10:34:46 AM MDT, Roland Lutz <rlutz AT hedmen DOT org> = wrote:
On Tue, 24 Jul 2018, John Doty wrote:
 You may =
have different symbol libraries for prototype and production.

How would these symbols be =
different: in top-level attributes, in pin 
attributes, in =
pin geometry, or in graphical design?
--
Sent from my Android device with K-9 Mail. Please excuse my = brevity.

John Doty Noqsi = Aerospace, Ltd.

http://www.noqsi.com/

jpd AT noqsi DOT com

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