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    I've also seen PCB copper raster cut with a laser, but it requires a
    lot of power....<br>
    Ah, here it is: <a class="moz-txt-link-freetext" href="http://www.youtube.com/watch?v=PhH05jNyjCk">http://www.youtube.com/watch?v=PhH05jNyjCk</a><br>
    It gets into it at 0:28 seconds...<br>
    <br>
    <br>
    Michael<br>
    <a class="moz-txt-link-freetext" href="http://NoMiDesign.net/">http://NoMiDesign.net/</a>
    <br>
    <a class="moz-txt-link-freetext" href="http://krazatchu.ca/">http://krazatchu.ca/</a>
    <br>
    <br>
    <br>
    On 8/29/2011 9:01 PM, Paul &amp; Andrea Mumby wrote:
    <blockquote
cite="mid:CANhZG=Rd_N4yz4VeXywgtyDayeTHGT9Q2wpWaKQykhmrv0GVRw@mail.gmail.com"
      type="cite">I could have swore I saw somewhere someone
      successfully cut PCBs with a laser (not doing the cut the resist
      and chemically etch thing). But I might be wrong...
      <div><br>
      </div>
      <div>If that's the case, the easy way is still either toner
        transfer, or job the boards out to Seeedstudio.</div>
      <div><br>
      </div>
      <div>- Paul<br>
        <br>
        <div class="gmail_quote">On Mon, Aug 29, 2011 at 6:27 PM, <span
            dir="ltr">&lt;<a moz-do-not-send="true"
              href="mailto:bentfork@gmail.com">bentfork@gmail.com</a>&gt;</span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex;">
            If you want to push the power of the laser I think one would
            need to do something wacky , like sending pure oxygen in to
            get the heat high enough to start burning metal.<br>
            <br>
            There is a group that has made a modification to the air
            assist system.&nbsp; They channel the air and the laser through a
            gap to try and get more cutting power.<br>
            <br>
            <a moz-do-not-send="true"
              href="http://www.factengineering.com/turbo.php"
              target="_blank">http://www.factengineering.com/turbo.php</a><br>
            <br>
            I haven't seen a need myself for this, but I may look into
            it in the future If I find I'm doing a lot of cutting.&nbsp; It
            does open the road to potential hacking in the future,
            definitely if you start mixing gases.
            <div>
              <div class="h5"><br>
                <br>
                <br>
                <div class="gmail_quote">On 29 August 2011 17:58, Darcy
                  Whyte <span dir="ltr">&lt;<a moz-do-not-send="true"
                      href="mailto:darcy@siteware.com" target="_blank">darcy@siteware.com</a>&gt;</span>
                  wrote:<br>
                  <blockquote class="gmail_quote" style="margin:0 0 0
                    .8ex;border-left:1px #ccc solid;padding-left:1ex">
                    <br clear="all">
                    <div>
                      <div>That's what I thought....<br>
                        <div><br>
                        </div>
                        <div>I think the YAG lasers can cut metals but
                          those seem a little more expensive to say the
                          least.</div>
                      </div>
                    </div>
                    <div>
                      <div>
                        <div><br>
                        </div>
                        <div><br>
                        </div>
                        <div class="gmail_quote">
                          On Mon, Aug 29, 2011 at 5:56 PM, <span
                            dir="ltr">&lt;<a moz-do-not-send="true"
                              href="mailto:bentfork@gmail.com"
                              target="_blank">bentfork@gmail.com</a>&gt;</span>
                          wrote:<br>
                          <blockquote class="gmail_quote"
                            style="margin:0 0 0 .8ex;border-left:1px
                            #ccc solid;padding-left:1ex">
                            The laser unfortunately&nbsp; can't cut through
                            metal.&nbsp; The best one can do is to coat the
                            board in black spraypaint, remove it with
                            the laser and use it as a resist.<br>
                            <br>
                            <a moz-do-not-send="true"
href="http://blog.makezine.com/archive/2007/01/how-to-use-a-laser-to-etc.html"
                              target="_blank">http://blog.makezine.com/archive/2007/01/how-to-use-a-laser-to-etc.html</a>
                            <div>
                              <div>
                                <br>
                                <br>
                                <div class="gmail_quote">
                                  On 29 August 2011 14:09, Paul &amp;
                                  Andrea Mumby <span dir="ltr">&lt;<a
                                      moz-do-not-send="true"
                                      href="mailto:themumbys@gmail.com"
                                      target="_blank">themumbys@gmail.com</a>&gt;</span>
                                  wrote:<br>
                                  <blockquote class="gmail_quote"
                                    style="margin:0 0 0
                                    .8ex;border-left:1px #ccc
                                    solid;padding-left:1ex">
                                    We should try some copper clad board
                                    to see if we can cut a PCB with the
                                    laser... I've seen some people with
                                    fantastic success, and that laser is
                                    so fine that we could get some
                                    really accurate PCB traces with it.
                                    <div>
                                      <br>
                                    </div>
                                    <div><font color="#888888">- Paul</font>
                                      <div>
                                        <div><br>
                                          <br>
                                          <div class="gmail_quote">On
                                            Fri, Aug 26, 2011 at 9:59
                                            AM, <span dir="ltr">&lt;<a
                                                moz-do-not-send="true"
                                                href="mailto:bentfork@gmail.com"
                                                target="_blank">bentfork@gmail.com</a>&gt;</span>
                                            wrote:<br>
                                            <blockquote
                                              class="gmail_quote"
                                              style="margin:0 0 0
                                              .8ex;border-left:1px #ccc
                                              solid;padding-left:1ex">
                                              Hehe.&nbsp; Good idea.&nbsp; <br>
                                              <br>
                                              It isn't that small yet.&nbsp;
                                              Using three credit cards I
                                              can build two
                                              trebuchettes.&nbsp; It is based
                                              on these guys design,
                                              which uses no glue or tape
                                              to hold the whole thing
                                              together:<br>
                                              <br>
                                              <a moz-do-not-send="true"
href="http://www.siegetoys.com/design.html" target="_blank">http://www.siegetoys.com/design.html</a>
                                              <div>
                                                <div><br>
                                                  <br>
                                                  <br>
                                                  <br>
                                                  <div
                                                    class="gmail_quote">On
                                                    25 August 2011
                                                    18:47, jim kiskis <span
                                                      dir="ltr">&lt;<a
                                                        moz-do-not-send="true"
href="mailto:jim.kiskis@gmail.com" target="_blank">jim.kiskis@gmail.com</a>&gt;</span>
                                                    wrote:<br>
                                                    <blockquote
                                                      class="gmail_quote"
                                                      style="margin:0 0
                                                      0
                                                      .8ex;border-left:1px
                                                      #ccc
                                                      solid;padding-left:1ex">
                                                      well if you get
                                                      your credit card
                                                      size trebuchet
                                                      working will it
                                                      fold<br>
                                                      up into one and
                                                      you can use it ?
                                                      :)be intereesting
                                                      going to the store<br>
                                                      and say this is a
                                                      trebuchet card and
                                                      do you take them
                                                      and if they<br>
                                                      don't then you can
                                                      lay siege to them
                                                      :)<br>
                                                      <div>
                                                        <div><br>
                                                          <br>
                                                          On Thu, Aug
                                                          25, 2011 at
                                                          12:25 AM,
                                                          &nbsp;&lt;<a
                                                          moz-do-not-send="true"
href="mailto:bentfork@gmail.com" target="_blank">bentfork@gmail.com</a>&gt;
                                                          wrote:<br>
                                                          &gt; Good to
                                                          see its all
                                                          getting put
                                                          together.&nbsp; I
                                                          should finish
                                                          off my
                                                          business<br>
                                                          &gt; card
                                                          sized
                                                          trebuchet...<br>
                                                          &gt;<br>
                                                          &gt; On 24
                                                          August 2011
                                                          20:58, Darcy
                                                          Whyte &lt;<a
                                                          moz-do-not-send="true"
href="mailto:darcy@siteware.com" target="_blank">darcy@siteware.com</a>&gt;
                                                          wrote:<br>
                                                          &gt;&gt;<br>
                                                          &gt;&gt; Here
                                                          are some
                                                          pictures and
                                                          video of the
                                                          first laser
                                                          cuts at
                                                          ArtEngine.<br>
                                                          &gt;&gt; <a
                                                          moz-do-not-send="true"
href="http://mambohead.com/2011/08/fire-the-laser/" target="_blank">http://mambohead.com/2011/08/fire-the-laser/</a><br>
                                                          &gt;&gt;<br>
                                                          &gt;&gt;
                                                          _______________________________________________<br>
                                                          &gt;&gt; Lab
                                                          mailing list<br>
                                                          &gt;&gt; <a
                                                          moz-do-not-send="true"
href="mailto:Lab@artengine.ca" target="_blank">Lab@artengine.ca</a><br>
                                                          &gt;&gt; <a
                                                          moz-do-not-send="true"
href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
                                                          &gt;&gt;<br>
                                                          &gt;<br>
                                                          &gt;<br>
                                                          &gt;
                                                          _______________________________________________<br>
                                                          &gt; Lab
                                                          mailing list<br>
                                                          &gt; <a
                                                          moz-do-not-send="true"
href="mailto:Lab@artengine.ca" target="_blank">Lab@artengine.ca</a><br>
                                                          &gt; <a
                                                          moz-do-not-send="true"
href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
                                                          &gt;<br>
                                                          &gt;<br>
                                                        </div>
                                                      </div>
                                                    </blockquote>
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                                                  <br>
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                                              <br>
_______________________________________________<br>
                                              Lab mailing list<br>
                                              <a moz-do-not-send="true"
href="mailto:Lab@artengine.ca" target="_blank">Lab@artengine.ca</a><br>
                                              <a moz-do-not-send="true"
href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
                                              <br>
                                            </blockquote>
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                <br>
              </div>
            </div>
            <br>
            _______________________________________________<br>
            Lab mailing list<br>
            <a moz-do-not-send="true" href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
            <a moz-do-not-send="true"
              href="http://artengine.ca/mailman/listinfo/lab"
              target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
            <br>
          </blockquote>
        </div>
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      <br>
      <pre wrap="">_______________________________________________
Lab mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Lab@artengine.ca">Lab@artengine.ca</a>
<a class="moz-txt-link-freetext" href="http://artengine.ca/mailman/listinfo/lab">http://artengine.ca/mailman/listinfo/lab</a>
</pre>
    </blockquote>
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