Dan, I use PCAD 8.5 (dos) and have been using metric parts in english databases for years. You will have to use "snap to pin" when routing since the pins will be at sub-micron locations. I use english padstacks so the apertures are all english. The only problem I have seen is when you have just enough room between pads for a trace, it won't fit (DRC error) because the pads are slightly of you routing grid (even if you go to 1:1) and it throws the spacing to one side. All in all, the use of metric parts has caused me little or no pain. I hope this helps! Best Regards, Brandon Luther Dataram Corp. ______________________________ Reply Separator _________________________________ Subject: Mixed Metric and Inch Components Author: [log in to unmask] at Internet Date: 8/7/96 4:18 PM We have a design using component footprints constructed of both inch and metric dimensions and would like to know what problems this could cause during routing. And is this mixture a "normal" occurrence with many designs today? Thanks. Dan Munger Fermilab Batavia, IL USA [log in to unmask] **************************************************************************** * The mail list is provided as a service by IPC using SmartList v3.05 * **************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * **************************************************************************** **************************************************************************** * The mail list is provided as a service by IPC using SmartList v3.05 * **************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ****************************************************************************