Hi Steve,

I can understand the tolerance being 1.65" +0.005" but is it necessary
for it to be -0.005" in the localised area of the tabs?  If not you
could use recessed break off tabs, the remnants of which were no greater
than 1.65" after breaking the boards out.

Alternatively could you build a partial donut shaped punch jig to break
the boards out to the required tolerances with sufficient PCB supprt to
avoid damaged to the solder joints / components?

Regards,

Chris Murphy

---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/html/forum.htm for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------