From the sound of it Brad ; KK may not have that much room ; considering
pads

I'd almost revert to simplistics ; flipped a steel cutting bladed jigsaw (a
good one) upside down coupled with vacuum under table ; leave the tabs touch
wider if he would not have center support for the panel ; than he could push
the blade more and straight than routing bit .
The support required for multiset straight cuts on router is bit on the
elaborate side and slow ; also the grounded (rounded) tip of blade could be
safer .

Another thing which exists (perhaps better still for V grooves) is a diamond
dust coated wire loop for steel belt saws ;
also safe > cuts hard stuff ; but not fingers ; and it's fast, guided by the
V groove . It's thinner than blade still .

The reciprocating fret arm saws work with same type of wire thinner again
still again ( veneer work ) ; cheaper and smaller than above .

Just a thought

See you  Brad
                                         Paul

> ----------
> From:         Vanderhoof, Brad[SMTP:[log in to unmask]]
> Sent:         Thursday, 7 January 1999 9:05
> To:   [log in to unmask]
> Subject:      Re: [TN] Zero Margin PWB Assembly Depaneling
>
> A router table with adjustable or custom tooling for double sided boards
> can
> work well for this application.  The usual practice is prerouting the bare
> board and removing small connecting tabs to depanel after assembly.
> Regards,
> Brad Vanderhoof
>
> -----Original Message-----
> From: KK Chin [mailto:[log in to unmask]]
> Sent: Wednesday, January 06, 1999 12:23 PM
> To: [log in to unmask]
> Subject: [TN] Zero Margin PWB Assembly Depaneling
>
>
> Dear Technetters,
>
> We are designing a panel layout for a small PWB assembly (1.6" x 2") which
> has through-hole components mounted very close to the board edge, leaving
> no margin for our usual depaneling process. We usually pre-score the board
> and depanel with rotary-blade type splitter. We considered hand-splitting
> in this case but we worry about cracking the SMD's on the bottom. Can
> somebody enlighten me if there are any methods, tools or equipment for
> depaneling in this case?
>
> For your information, the PWB material is FR2, single-sided, 1mm or 1.6mm
> thick. Topside is all though-hole devices of 18mm max. height. Bottom side
> is all SMD's of 1.2mm min. clearance to the board edge.
>
> Thanks!
> KK Chin
> Artesyn Technologies
> (510)683-6497
>
> ################################################################
> TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
> ################################################################
> To subscribe/unsubscribe, send a message to [log in to unmask] with
> following
> text in the body:
> To subscribe:   SUBSCRIBE TechNet <your full name>
> To unsubscribe:   SIGNOFF TechNet
> ################################################################
> Please visit IPC's web site (http://www.ipc.org) "On-Line Services"
> section
> for additional information.
> For technical support contact Hugo Scaramuzza at [log in to unmask] or
> 847-509-9700 ext.312
> ################################################################
>
> ################################################################
> TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
> ################################################################
> To subscribe/unsubscribe, send a message to [log in to unmask] with
> following text in the body:
> To subscribe:   SUBSCRIBE TechNet <your full name>
> To unsubscribe:   SIGNOFF TechNet
> ################################################################
> Please visit IPC's web site (http://www.ipc.org) "On-Line Services"
> section for additional information.
> For technical support contact Hugo Scaramuzza at [log in to unmask] or
> 847-509-9700 ext.312
> ################################################################
>

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################