<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Something like this may work:<div><a href="http://www.laserbits.com/images/LaserResources/TechTipsandFeatureStories/TECHTIP_PDFs/TECHTIP_LaserFoil.pdf">http://www.laserbits.com/images/LaserResources/TechTipsandFeatureStories/TECHTIP_PDFs/TECHTIP_LaserFoil.pdf</a></div><div><br></div><div>polyester laminate called Laser Foil</div><div><br></div><div>May work well enough as a mask/stencil for etching. Depends a lot on the interface properties w.r.t. the etchant.</div><div>/Mike</div><div><br></div><div><div><div>On 2011-10-13, at 4:29 PM, <a href="mailto:bentfork@gmail.com">bentfork@gmail.com</a> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>I've tried making stencils and I haven't had any luck, yet. The<br>problem is finding a suitable material from which to make stencils.<br><br>Commercial ones are made of stainless steel... that isn't going to be<br>cut by the laser we have.<br><br><br>On 13 October 2011 16:06, Darcy Whyte <<a href="mailto:darcy@siteware.com">darcy@siteware.com</a>> wrote:<br><blockquote type="cite">It's trial and error. The machine is pretty accurate.<br></blockquote><blockquote type="cite">I'd just be concerned if the material (which I dont' know what it is) gives<br></blockquote><blockquote type="cite">of gas that's bad for humans or bad for the machine.<br></blockquote><blockquote type="cite">Send the material description <a href="mailto:technical@artengine.ca">technical@artengine.ca</a> to see if Britta<br></blockquote><blockquote type="cite">already has that material on the green list or not.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">On Thu, Oct 13, 2011 at 2:18 PM, Jean-Marc LeBlanc<br></blockquote><blockquote type="cite"><<a href="mailto:jeanmarc.leblanc@gmail.com">jeanmarc.leblanc@gmail.com</a>> wrote:<br></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">hey,<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">I was wondering if the lab laser cutter was good enough to make a<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">stencil for bga/LGA chips.<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">the pads at the botom are 0.4 millimeteres I think<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Jean-Marc Le Blanc<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">---<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">"Do you pine for the nice days of Minix-1.1, when men were men and<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">wrote their own device drivers?" Linus Torvalds<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">_______________________________________________<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Lab mailing list<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><a href="http://artengine.ca/mailman/listinfo/lab">http://artengine.ca/mailman/listinfo/lab</a><br></blockquote></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">_______________________________________________<br></blockquote><blockquote type="cite">Lab mailing list<br></blockquote><blockquote type="cite"><a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br></blockquote><blockquote type="cite"><a href="http://artengine.ca/mailman/listinfo/lab">http://artengine.ca/mailman/listinfo/lab</a><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><br>_______________________________________________<br>Lab mailing list<br><a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>http://artengine.ca/mailman/listinfo/lab<br></div></blockquote></div><br></div></body></html>