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 ################################################################