Bob,

You had to select a family of similar components in order to create you new
component. The component that you made it from contains industry assumptions for
those items you question. If you are unsure of what to use, copy those assumptions
and you should be safe.

Regards,

Gary Ferrari
Executive Director
IPC Designers Council
(860) 350-9300 Fax (860) 350-9309
[log in to unmask]

>>> "Vanech, Bob" <[log in to unmask]> 04/16/98 08:09PM >>>
  Need help in generating a simple land pattern and comments from
  the assembler. Our land pattern expert is busy, so I decided to
generate
  a footprint for a MIL-PRF-55681/4E, CDR12 style ceramic cap...Not
  a problem...WRONG !!!  The IPC land pattern calculator asks very
  embarrassing questions like "Fab Tol", "Place Acrcy" and the ever
  popular "Solder Joint Design Goals"  Do I really have to talk to a
group
  of people to get those numbers or are there "rule-of-thumb" numbers
  that I can use ??? I would think that those numbers could also be
  assembler dependent. Suggestions welcomed !!

  Also,  are there any assemblers out there that would like to comment on
  using this .055 X .055 part. Remember that this is a family forum and
young
  children may be reading your comments. :) :)

  Thanks in advance for all help/suggestions/comments. Enjoy..



           Regards,
Norden Systems

     Bob Vanech
Norwalk, Ct.

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