Colleagues:
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. 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. I found this tutorial <https://www.youtube.com/watch?v=bkrUzGooA9k&ab_channel=HaasAutomation%2CInc.> on line that has provided me with some valuable insight on different styles of taps. William Miller Solar 17395 Oak Road, Atascadero, CA 93422 805-438-5600 www.millersolar.com CA Lic. 773985 *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Michael Morningstar via RE-wrenches *Sent:* Monday, September 12, 2022 7:39 PM *To:* RE-wrenches *Cc:* Michael Morningstar *Subject:* Re: [RE-wrenches] Large current battery combiners, UL Listing No, I haven't. I'll do some testing tomorrow as we have 60 holes/taps to do in the above mentioned bussing On Mon, Sep 12, 2022 at 7:54 AM frenergy via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: Michael, Are you using kerosene as a cutting fluid? We've had better luck with that in softer than steel metals. Bill Feather River Solar Electric Bill Battagin, Owner 4291 Nelson St. Taylorsville, CA 95983 530.284.7849 CA Lic 874049 On 9/11/2022 7:00 PM, Michael Morningstar via RE-wrenches wrote: > We've gotten around needing UL listings for one-off in house > fabrication by running things through a licensed engineer. Right now > we are building a gutter bus which has two 1/2" x 4" x 20' copper bars > in a 10" x 10" gutter. We are using 2" x 9" x 9" UDPM plates with > slots routed out for the bars as insulators. This is for 24 Discover > AES and 8 Sol-Ark's. It usually costs about 1K to have an engineer > sign off on our designs. > > I'd be interested in learning tricks for tapping 3/8" in thick copper. > I've never been able to get consistent results and resort to > thru-bolting. -- This email has been checked for viruses by Avast antivirus software. www.avast.com _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org -- Michael Morningstar Morningstar Electric PO Box 1494 Mount Shasta, CA 96067 530-921-0560 mjmornings...@gmail.com
_______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
