On Fri, 4 Jul 2008 12:19:39 -0700 (PDT), you wrote:
>What do you use to make a white silkscreen ?
It's toner transfer onto the board, then a white film available from
pulsar (www.pulsar.gs).
Avoid having the stuff over traces and it does much better. I
recommend putting it on before hole drilling and even before trimming
the board, easier to have things to hold onto on the edges.
They have directions on the website.
Harvey
>
>--- On Fri, 7/4/08, Harvey White <madyn@...> wrote:
>From: Harvey White <madyn@...>
>Subject: Re: [Homebrew_PCBs] Eyelet press recommendation
>To: Homebrew_PCBs@yahoogroups.com
>Date: Friday, July 4, 2008, 7:01 PM
>
>
>
>
>
>
>
>
>
>
>
> On Fri, 4 Jul 2008 13:14:10 -0500, you wrote:
>
>
>
>>>>I use eyelets (0.050 diameter), copper, and then separate vias
>
>
>
>>
>
>>What do you mean "separate vias" ?
>
>
>
>A via is used only to connect the top and bottom layers, but not at a
>
>parts lead. That way, I do not have to worry about the hole in the
>
>eyelet.
>
>>
>
>>>>allows me to use a small (!) ball peen hammer and a block of aluminum
>
>>>> or steel as an anvil
>
>>
>
>>can you expand a bit here ? I assume the piece of steel is flat, and
>
>>you place your PCB with
>
>>the eyelet in place on top of it.
>
>
>
>That's correct, rolled side down, of course.
>
>
>
>>Then you use the hammer to form the other side of the eyelet ? Do you
>
>>use any other tool along with
>
>>the hammer to punch on the eyelet and form it ? or just the hammer is enough ?
>
>
>
>The ball peen hammer is enough, I use something about 5 oz or so, and
>
>the round end. With a little practice, you'll swage the end over
>
>nicely without killing anything.
>
>
>
>Pictures of the board design (not the board) are here.
>
>
>
>You want to note the blowups at the bottom. I've arbitrarily made all
>
>the vias square.
>
>
>
>http://www.dragonwo rks.info/ Electronics/ making%20PC% 20boards/ pc_board_ design.htm
>
>>
>
>>What specific hammer do you use ( how small ). I am interested.
>
>>
>
>>You don't happen to have any photos do you ?
>
>
>
>http://www.dragonwo rks.info/ CAD-CAM-CNC/ xyzr%20table/ XYZR%20Table% 20Controller. htm
>
>
>
>Has the start, but you really want part two, assuming that part 1
>
>makes interesting enough reading.
>
>
>
>I can go take a couple of pictures if you need them.
>
>
>
>Harvey
>
>
>
>>
>
>>Thanks
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>[Non-text portions of this message have been removed]