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Re: [N8VEM-S100:3178] Re: boards uploaded to wiki

Thanks Andrew!  Glad that you bevel the same as I have been for ISA
boards (and for which I've indicated for the S-100 boards I've ordered.)

Thanks!

Todd

* 'Andrew Lynch <lyn...@yahoo.com>' via N8VEM-S100 <n8vem...@googlegroups.com> [140422 10:19]:
> 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 <t...@bonedaddy.net>
> To: n8vem...@googlegroups.com 
> 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 <LYN...@YAHOO.COM> [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:abin...@gmail.com] 
> > Sent: Monday, April 21, 2014 2:29 PM
> > To: n8vem...@googlegroups.com
> > 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 <nbr...@me.com <javascript:> >
> > To: n8ve...@googlegroups.com <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
> > 
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> >  
> > 
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