At 17:33 05.01.2004 +1100, you wrote:
Hi, I hope you all had a happy Xmas.
I need to place two large components on a pcb that will actually be on spacers and connected to the main board by short wire links. As the items are relatively large (one of them is one of those standard 2- or 4-line LCD modules) the footprint for these will be quite large yet be basically empty - there will be four spacers, one for each corner, plus a short multi-way connector. Is there any way of creating this as a component footprint so that it may be correctly moved and position on the main board yet still allow Protel to freely place components and tracks in the free area under these components?

You can place components and tracks under any footprint if you have turned off the "Comonent Clearence Constraint" design rule.
It's just a "bit" painful to move components under the large components. Every time you pick a component, Protel shows a list to ask which component you wish to move.


The way I have done exactly the same thing:
- placed the Display footprint
- placed four free pads and one connector exactly over the spacers and the connector
- looked these five items
- deleted the footprint


If the position of the display is fixed when you start with the desing, it has to be done only once.
A bit cumbersome, bit makes the placing of the other components much easier.


Can't think of an easier way at the moment.

Edi


As the position of the spacers relative to the connector is fairly critical it is preferable that this is one single component.

Best Regards
Laurie Biddulph
http://www.elby-designs.com




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