The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
From: "Spehro Pefhany"
Subject: Re: 5.00 or 5.08 mm terminal blocks?
References: <3DC0EB48.FA5A34D4@scazon.com> <email@example.com>
User-Agent: tin/pre-1.4-19990216 ("Styrofoam") (UNIX) (Linux/2.2.14 (i586))
Date: Thu, 31 Oct 2002 12:02:34 GMT
NNTP-Posting-Date: Thu, 31 Oct 2002 07:02:34 EST
The renowned Gibbo wrote:
> I still prefer inches for PCB work but for everything else almost the entire
> world is metric with the exception of the USA.
The board designs I do are mixed, and in primary inch units (because of
the libraries). There's always hard-metric parts on there too, it doesn't
bother me particularly one way or the other. If it takes X hours to make
up a set of footprints for these connectors, it will be about the same if
they are metric or not- just more digits (from a spreadsheet, to a
"spreadsheet") and more checking.
> This niggles my mind. I use imperial but I know I really should be moving to
> metric as the rest of the world is doing.
The change is slow... but if you do a SMT-only board right now it could
well be metric only. You can still take hard-metric 0603 resistors,
transistors and TSSOP packages and lay them out on a 2 x 3" board with
inch rules for layout. Every PCB manufacturer I've run into from Shanghai
to Scarborough uses square inches for pricing, except for some consumer
paper-phenolic boards (big quantity) where they used m^2!
> I imagine waking up one day to find no more imperial components.
It won't happen overnight. ;-)
"it's the network..." "The Journey is the reward"
firstname.lastname@example.org Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup