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
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