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<div>Don</div><div>Thanks! </div><div>George KJ4UW </div><div><br></div><div><br></div><div><br></div><div id="composer_signature"><div style="font-size:85%;color:#575757">Sent from my Verizon Wireless 4G LTE smartphone</div></div><br><br>-------- Original message --------<br>From: "Don Jeerings Djeerings@tampabay.rr.com [LakelandARC]" <LakelandARC@yahoogroups.com> <br>Date: 09/15/2015 11:35 AM (GMT-05:00) <br>To: LakelandARC@yahoogroups.com <br>Subject: Re: [LakelandARC] ExpressPCB <br><br>
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</p><div class="moz-cite-prefix">On 09/15/2015 10:43 AM, gwmann
<a class="moz-txt-link-abbreviated" href="mailto:gwmann@verizon.net">gwmann@verizon.net</a> [LakelandARC] wrote:<br>
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<div>Have an idea? Get boards made...</div>
<div>de George KJ4UW </div>
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<a class="moz-txt-link-freetext" href="http://www.expresspcb.com/">http://www.expresspcb.com/</a>
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<div style="font-size:85%;color:#575757;">Sent from my
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<big><big>George.. If they are single sided, we make our own, I
conducted a class for doing this at that at one of our club
meetings.<br>
<br>
If it's double sided, or we need quantity, It's best to use
Express PCB. I have a running account with them and have had
over 60 boards made by them over the past 3 years.<br>
<br>
But for small quantities or experimental, the Express soft-ware
is excellent for home making small quantity single sided units,
keep in mind you have to reverse the top and bottom images
(because you are making copies of a positive (not negative)
image. We use a conventional laser printer and then heat
transfer the Toner image to a copper board, then etch and drill
it. (drills are available at Harbor Freight. <br>
<br>
We use a peroxide/Hcl mixture in place of ferric chloride. It's
much better, but little bit of training is required to safely
it, i.e. Wear glasses and Never pour water into acid... <br>
<br>
If you already have an approved design, and need to make a
quantity, Express is the best route, but remember that it's very
costly if you make a mistake in your artwork, like specifying
too small a hole. With through hole plating, you Cannot Drill
later drill the hold larger. and you could have invested in a
dozen useless boards. <br>
<br>
If you are designing a new circuit, it's best to make the
prototype at home. After its been checked operational, then go
to Express for quantity. <br>
<br>
What did you have in mind, did you have some other applications
? <br>
<br>
Don KI4EFL <br>
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Posted by: Don Jeerings <Djeerings@tampabay.rr.com> <hr style="height:2px ; border-width:0; color:#E3E3E3; background-color:#E3E3E3;">
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