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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">Colleagues:</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">I am gearing up to tap some more copper. I assume this is a pertinent subject since bus bars are going to be needed frequently for any storage work.</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">I bought the fancy drill press with the tapping function and I am setting it up. I ran a few tests and the functionality of the tool is pretty amazing. I still need to work on programming it to reverse when needed. I am close. I also ordered a cross vise for part holding.</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">I found this <a href="https://www.youtube.com/watch?v=bkrUzGooA9k&ab_channel=HaasAutomation%2CInc.">tutorial</a> on line that has provided me with some valuable insight on different styles of taps. </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">William</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1f497d">Miller Solar</span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1f497d">17395 Oak Road, Atascadero, CA 93422</span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1f497d">805-438-5600</span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1f497d"><a href="http://www.millersolar.com/"><span style="color:blue">www.millersolar.com</span></a></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1f497d">CA Lic. 773985</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> RE-wrenches [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>Michael Morningstar via RE-wrenches<br><b>Sent:</b> Monday, September 12, 2022 7:39 PM<br><b>To:</b> RE-wrenches<br><b>Cc:</b> Michael Morningstar<br><b>Subject:</b> Re: [RE-wrenches] Large current battery combiners, UL Listing</span></p><p class="MsoNormal"> </p><div><p class="MsoNormal">No, I haven't. I'll do some testing tomorrow as we have 60 holes/taps to do in the above mentioned bussing</p></div><p class="MsoNormal"> </p><div><div><p class="MsoNormal">On Mon, Sep 12, 2022 at 7:54 AM frenergy via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:</p></div><blockquote style="border:none;border-left:solid #cccccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in"><p class="MsoNormal" style="margin-bottom:12.0pt">Michael,<br><br> Are you using kerosene as a cutting fluid? We've had <br>better luck with that in softer than steel metals.<br><br>Bill<br><br>Feather River Solar Electric<br>Bill Battagin, Owner<br>4291 Nelson St.<br>Taylorsville, CA 95983<br>530.284.7849<br>CA Lic 874049<br><br>On 9/11/2022 7:00 PM, Michael Morningstar via RE-wrenches wrote:<br>> We've gotten around needing UL listings for one-off in house <br>> fabrication by running things through a licensed engineer. Right now <br>> we are building a gutter bus which has two 1/2" x 4" x 20' copper bars <br>> in a 10" x 10" gutter. We are using 2" x 9" x 9" UDPM plates with <br>> slots routed out for the bars as insulators. This is for 24 Discover <br>> AES and 8 Sol-Ark's. It usually costs about 1K to have an engineer <br>> sign off on our designs.<br>><br>> I'd be interested in learning tricks for tapping 3/8" in thick copper. <br>> I've never been able to get consistent results and resort to <br>> thru-bolting.<br><br><br>-- <br>This email has been checked for viruses by Avast antivirus software.<br><a href="http://www.avast.com" target="_blank">www.avast.com</a><br>_______________________________________________<br>List sponsored by Redwood Alliance<br><br>Pay optional member dues here: <a href="http://re-wrenches.org" target="_blank">http://re-wrenches.org</a><br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br><br>Change listserver email address & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>There are two list archives for searching. When one doesn't work, try the other:<br><a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br><a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br><br>List rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br><br>Check out or update participant bios:<br><a href="http://www.members.re-wrenches.org" target="_blank">http://www.members.re-wrenches.org</a></p></blockquote></div><p class="MsoNormal"><br clear="all"></p><div><p class="MsoNormal"> </p></div><p class="MsoNormal">-- </p><div><div><p style="margin:0in;margin-bottom:.0001pt;min-height:22px"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif"">Michael Morningstar</span></p><p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif""> </span></p><p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif"">Morningstar Electric</span></p><p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif"">PO Box 1494</span></p><p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif"">Mount Shasta, CA 96067</span></p><p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif"">530-921-0560</span></p><p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif""><a href="mailto:mjmorningstar@gmail.com" target="_blank">mjmorningstar@gmail.com</a></span></p><p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif""><img border="0" width="200" height="118" id="_x0000_i1025" src="https://ci3.googleusercontent.com/mail-sig/AIorK4xkNeAOHZC3SDnZTmnhgML4JHyGwi0PdmG_TrSHASBRfwJtZqGi7vknpXAngaaiawfnr5xCF1Y"></span></p></div></div></div></body></html>