<DIV> Just finished a project using a pre-coated positive artwork board. What a breeze.</DIV>
<DIV> I would add my nightmare experience to the iron on list, but, what's the point.</DIV>
<DIV>Another good idea not so good!</DIV>
<DIV> <BR><BR><B><I>Ray Wilson <raywilson@comcast.net></I></B> wrote:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">
<P>Peter<BR><BR>I had to reply because this is too good. I too have been plagued by the<BR>inconsistency of the iron on PC board stuff. What really cracks me up is<BR>that it says you have to control the temperature carefully and then it says<BR>something about most irons will work on polyester.</P>
<P> I don't know about you<BR>but I haven't had my clothes iron calibrated in a long time.</P>
<P> Any ideas where one can get clothes iron calibrated???</P>
<P> The stuff<BR>actually worked for me once and did a good job but I have yet to repeat my<BR>success. I suggest you go with the pre-coated boards for positive artwork.<BR>You print your art onto the clear sheets used for overhead projectors and<BR>then expose and develop. It ALWAYS works perfectly every time.<BR><BR>Hang in there<BR><BR>Ray<BR><BR>-----Original Message-----<BR>From: owner-synth-diy@dropmix.xs4all.nl<BR>[mailto:owner-synth-diy@dropmix.xs4all.nl]On Behalf Of Peter Grenader<BR>Sent: Sunday, November 09, 2003 11:50 AM<BR>To: synth-diy@dropmix.xs4all.nl<BR>Subject: [sdiy] Help with iron-on PCB art<BR><BR><BR>People,<BR><BR>I'm having a dickens of a time right now trying to make a simple (well,<BR>maybe not all that simple) PCB in my kitchen using the iron on method.<BR><BR>I've done it before, and while I've never been real secure as to when is<BR>enough for all of the processes, I've never had the problems I saw this<BR>morning.<BR><BR>One, how friggin' l!
ong do
you iron? When you do, and portions of traces<BR>don't make it and don't transfer, is this a sign of what? Too hot? not<BR>enough ironing, not enough pressure? Or to much of all? Or is this an<BR>indication of old iron on material? I can only get this material one place<BR>locally - is it possible it's just old and dried up or something?<BR><BR>Then the weirdest thing happen when I etched. Everything looked great, the<BR>trace widths are not that small, so that's ok, and when I rinsed off the<BR>iron-on etch resist, there was nothing underneath - no copper. I only<BR>etched for about 10 minutes, slightly heated. THe exact same duration I've<BR>always done, yet I've never had this problem.<BR><BR>Any help in the balance of the solution vs. heat vs. time vs amount of<BR>solution would be greatly appreciated.<BR><BR>The major problem I have with this is I was making a double sided board, and<BR>after it was etched, I held it up to the light and the front/back<BR>registration w!
as spot
on, which I considered the hard part. SUCH a drag<BR>that the other processes failed on me!<BR><BR>OK, I'm off to Frye's for some more double sided copper clad and yet another<BR>bottle of Ferrite Chlor. It would be swell to have some answers to these<BR>ponderances when I get back.<BR><BR>Sorry if I seem a bit miffed right now - it's just really a cluster to go<BR>threw this.<BR><BR>thanks in advance -<BR><BR>Peter<BR></P></BLOCKQUOTE><p><hr SIZE=1>
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