I used via/hole size of 1mm/0.7mm. Could be smaller if they had sharp tool for V-grooving.
Igor -----Original Message----- From: Danny Bishop [mailto:[EMAIL PROTECTED]] Sent: Wednesday, 26 June 2002 2:44 PM To: 'Protel EDA Forum' Subject: Re: [PEDA] PCB breakoffs not a bad idea if you use big vias > -----Original Message----- > From: Igor Gmitrovic [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, 26 June 2002 11:44 AM > To: Protel EDA Forum > Subject: Re: [PEDA] PCB breakoffs > > > Ivan, > > you could V-groove the board and put vias on the tracks where > they cross the V-groove line. > > Igor > > -----Original Message----- > From: Jim McGrath [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, 25 June 2002 11:14 PM > To: Protel EDA Forum > Subject: Re: [PEDA] PCB breakoffs > > > Ivan, > > Yes you can use FR4. I would score the board and use ribbon cable > to interconnect from board A to board B. > > Jim > > Bagotronix Tech Support wrote: > > > Hello, all: > > > > We have had our domain transferred to a new ISP last week, > so e-mail has > > just begun working normally (I hope!). > > > > Anyway, I want to make a PCB that has a "break-off" area with extra > > circuitry on it. The idea is that some users may not need the extra > > circuitry, so they can break off that area of the board to > reduce the size. > > I know this is easy for cheap PCB material (phenolic, etc.) > but does this > > work with FR-4 and such? > > > > If this is feasible with FR-4, what technique should I use > to make the > > break-off? I assume I will have to lay out a bunch of > unplated holes spaced > > in a line, with traces going inbetween holes. And I assume > that the way to > > indicate this to the fab is to put comments on the drill layer. > > > > Thanks in advance for your help. If no one replies, I will > assume our > > e-mail still isn't working right. > > > > Best regards, > > Ivan Baggett > > Bagotronix Inc. > > website: www.bagotronix.com > > > ************************************************************** > ********** > * Tracking #: FA14B7B41BC3F5459A4E929EDF87298D738F4111 > * > ************************************************************** > ********** > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[email protected] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
