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Reliable 1206 and 0603 footprints

entangled

Hello,

I am trying to design a board with 1206 capacitors and 0603 resistors (SMD types both, of course).

From <path>\SPB_17.2\share\pcb\pcb_lib\symbols I have tried to use as a basis the 0603rf_wv_12d.dra and 1206rf_wv_12d.dra but as I can these are overloaded with too much text and even vias (?!). Should I use these and edit them to the minimal working configuration? Also in the same folder we can find the 1206.dra -a much more simplified one.

In general I have found some free footprints from Snapeda website and this one.

These do not seem to be the working fine or even after being DBdoctor'ed I get some errors

( e.g. E- (SPMHDB-181): Design revision 15.x is too old. Must run the batch dbdoctor to uprev.)

A last way out would be using the procedures described in K.Mitnzner's book  (Chapter8-p.213) and create a new one (by editing an existing one) - though I tried and found this to be the hardest one (I got stuck while Manipulating the assembly outline).

Since I feel I am in a dead end (Allegro's complexity should not be underestimated especially for beginners as me :-) ) are there any suggestions on how to overcome this critical point?!

As pointed in the title what would be the most reliable footprint basis to (re)start with?

I would appreciate any help!

Thanks in advance,

Andreas

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  • steve
    There are free (and paid for tools) to help with PCB Footprints. Look at orcad.co.uk/.../Footprints.pdf. SnapEDA and UltraLibrarian are good websites but make sure you get the 17.2 versions. Also inside the installation folder is a sample board that has many footprints (to an IPC Standard) that you can extract using Export - More - Libraries. Look at C:\Cadence\SPB_17.2\share\orcad\examples\pcbdesign\pcbdemo1\allegro. There is a DEMOJ-complete.brd.
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  • steve
    There are free (and paid for tools) to help with PCB Footprints. Look at orcad.co.uk/.../Footprints.pdf. SnapEDA and UltraLibrarian are good websites but make sure you get the 17.2 versions. Also inside the installation folder is a sample board that has many footprints (to an IPC Standard) that you can extract using Export - More - Libraries. Look at C:\Cadence\SPB_17.2\share\orcad\examples\pcbdesign\pcbdemo1\allegro. There is a DEMOJ-complete.brd.
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