Susy, I have done this as both a designer and as a Fabricator. If the routed area is NOT copper plated, it is easy enough. First ensure that all layer have the copper pulled back from the routed area. Second, make sure your Fab drawing clearly shows the top and end view of the board. Third Place 3 or 4 tooling holes in the board. .126" holes that are non plated towards the four corners, but not in the routed areas. Fourth contact your board house. (I know of 2 specifically that do this for me. Some of our boards are thicker then our card guides.) If they don't know how here is the procedure. Manufacturer procedure for mitering board. A separate route file is created. The table is checked for flatness. (this is done by moving the route bit over the area and spacing is consistent. Raises may be milled off) Tooling holes/pin holes are drilled in the backing board or table The board is mounted to the table. Another flatness test is preformed. Same process except the board is tapped down in high points. The router is zeroed out and dropped the difference between the desired thickness and the overall thickness. The mill process is now run. Acceptable tolerance are about +/- .010" More if possible. I worked with both board shops to do this and the results have been great! Good luck Chris Robertson [log in to unmask] <mailto:[log in to unmask]> Senior Designer Lockheed-Martin Services Inc. 4912 Research Dr. Huntsville, AL 35805 (256) 722-2626 http://www.lmsg.lmco.com <http://www.lmsg.lmco.com/> Author "PCB Designer's Reference" to be released in Spring 2002 Designer Council Member since 2002! lol > I've got a good one for the gurus out there! > > And engineer just asked me if a rigid board could have an > area (an edge > actually) routed such that the overall area of the board is > one thickness > (.125), and the routed area is another (.062) See the side > view picture > below... > > > routed area > \ __________________ > _____| | > .062 |_______________________| .125 > > > > Other than the obvious issues of controlling routing depth, > and I imagine a > hugh cost, what else should I be concerned about? Can it even > be done??? We > were thinking that it might be easier to build two boards and > fuse them into > one, but would the alignment problems kill that idea? > > TIA for any help, > Susy > > Susy Webb, CID > Sr PCB Designer > Carlo Gavazzi Computer Systens > 281-875-1500 x33 > [log in to unmask] > > -------------------------------------------------------------- > ------------------- > DesignerCouncil Mail List provided as a free service by IPC > using LISTSERV 1.8d > To unsubscribe, send a message to [log in to unmask] with > following text in > the BODY (NOT the subject field): SIGNOFF DesignerCouncil. > To set a vacation stop for delivery of DesignerCouncil send: > SET DesignerCouncil NOMAIL > Search previous postings at: www.ipc.org > On-Line Resources > & Databases > E-mail 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 > -------------------------------------------------------------- > ------------------- > --- > Incoming mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.320 / Virus Database: 179 - Release Date: 01/30/2002 > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.320 / Virus Database: 179 - Release Date: 01/30/2002 --------------------------------------------------------------------------------- DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF DesignerCouncil. To set a vacation stop for delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 ---------------------------------------------------------------------------------