Hi Todd, Yes, I prefer to bevel at 45 degrees during PCB manufacture. Beveling PCBs is optional and can be done simply with a double cut flat file in a pass or two. Don't take off too much material just enough to chamfer the edges. Better to leave it sharp cornered than take off too much. Thanks and have a nice day!
Andrew Lynch From: Todd Goodman <[email protected]> To: [email protected] Sent: Tuesday, April 22, 2014 7:38 AM Subject: Re: [N8VEM-S100:3177] Re: boards uploaded to wiki Hi Andrew, They optionally provide beveling of the board where the fingers are. Have you been having them do that too for the S-100 boards? What angle beveling have you had them do? Thanks, Todd * Andrew Lynch <[email protected]> [140421 19:56]: > HI > > Gold edge fingers are an option the PCB order screen at PCBcart.com > > > > Just specify the number and they plate them. > > > > Thanks and have a nice day! > > Andrew Lynch > > > > From: Andrew Bingham [mailto:[email protected]] > Sent: Monday, April 21, 2014 2:29 PM > To: [email protected] > Cc: Andrew Lynch > Subject: Re: [N8VEM-S100:3132] Re: boards uploaded to wiki > > > > Andrew, > > > > How do you specify the gold plating on the edge connectors? For S-100 cards > this is an important consideration. > > > > I read in my own research that the ENIG gold finish that is used to prep for > soldering is only about .1 microns of gold over 5 microns of nickel and that > a proper Hard Gold coating for a card edge connector is 1.5 microns gold over > 5 microns nickel. > > > > Are the past S-100 boards you have done for the group ENIG, or something else? > > > > Some of the cheaper prototype PCB places don't even offer ENIG at all in > their basic products, let alone a hard gold type coating. So this is a > discriminator for what process to select. > > > > Andrew B > > On Monday, April 21, 2014 9:00:54 AM UTC-7, lynchaj wrote: > > Hi Neil > > > > Any board house will probably do fine. > > > > I use PCBcart.com for "production" boards and 33each.com for prototypes. > > > > Good luck! Thanks and have a nice day! > > Andrew Lynch > > > > From: nbreeden <[email protected] <javascript:> > > To: [email protected] <javascript:> > Sent: Sunday, April 20, 2014 5:11 PM > Subject: [N8VEM-S100:3132] Re: boards uploaded to wiki > > > > Andrew, > > > > Can you provide some info on who you use to manufacture the boards etc? I'm >completely new to this; using someone you've had success with seems like a >good idea. > > > > -Neil > > > On Sunday, April 20, 2014 5:58:35 AM UTC-7, lynchaj wrote: > > Hi > > I uploaded the EDA files, schematics, and PCB layout files for the S-100 > 80286 CPU V2, S-100 SMB V2, and S-100 MS DOS Support V2 boards to the wiki in > their appropriate folder. > > > > These boards are ready for production so if you want to make some orders feel > free. Thanks and have a nice day! > > Andrew Lynch > > -- > You received this message because you are subscribed to the Google Groups > "N8VEM-S100" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:> . > For more options, visit https://groups.google.com/d/optout. > > > > -- > You received this message because you are subscribed to the Google Groups > "N8VEM-S100" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
