Process Notes – notes additional to instructable page

  • Question:  After following this procedure the following question arose: Why are all the new parts Uwhy not just U and a number?</strong> 	</li> 	<li> 		Answer: The U stuff is the way you guys made the new components in the library or the way the libraries were from wherever you copied them.  When you make the device you want to put “U” in the “PREFIX” spot instead of leaving it blank for IC’s.  If you are doing a capacitor you would put in “C”, if inductor “L”, if crystal “X”, etc. etc.  U$ is the default prefix.
  • Symbols should be laid out on 0.1 inch centers.  I used 0.050 centers and got complaints
  • Do not leave out the NAME VALUE placeholders.

EaglePCB-Making-Part-Prefix

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