Did you ask the seller if he had the tool? My PGP public key: https://vanderwal.us/evdl_pgp.key
November 16, 2021 4:14 PM, "Cor van de Water via EV" <ev@lists.evdl.org> wrote: > Howdy, > You are aware that there are over 250 cells in the truck, so that > would mean grinding the nuts on over 500 connections? Not gonna > happen. > I would be tempted to weld 5 ball bearings equidistant to a short > piece of pipe and try to get the distance between the balls close > enough to allow this to use as temp tool, hopefully the nuts are not > rotted tight onto the threads or I will only be able to destroy the > cells to get them out... > NOTE that the seller even included a set of spare cells so how the > hell would he expect to swap cells? > I swear - if these nuts were used to attach the Prius catalytic > converter protection plates, we would be free of any theft! > Cor. > > On Tue, Nov 16, 2021 at 2:54 PM Haudy Kazemi <kaze0...@umn.edu> wrote: > >> It may be custom security hardware with limited access to tools. It doesn't >> appear to be something >> that would match something in the readily available security bit toolkits. >> Maybe the person you got >> the pack from knows the backstory? >> >> If you can't find the tool needed or a substitute, you could try adding flat >> grips to the nuts via >> a grinder or Dremel-type rotary tool. Shield everything near the specific >> nut being worked on with >> a non-conductive barrier, possibly plexiglass and/or dry wood. The added >> flat grips will either let >> you remove the nuts by unscrewing, or by weakening the nut so it breaks >> during the removal attempt. >> >> Not sure why they'd care about locking down individual cells. This isn't >> doing anything to keep >> people away from high voltages and currents...that'd be something to do at >> the whole pack enclosure >> level, not cell level. They're really only preventing pack disassembly. >> Maybe that's the point? But >> again why? Detecting warranty voiding tampering? >> >> On Tue, Nov 16, 2021, 04:29 Cor van de Water via EV <ev@lists.evdl.org> >> wrote: >>> Here two pics of the battery box with the weird half-dome nuts on the >>> cell interconnects: >>> https://flic.kr/p/2mK3nUh >>> https://flic.kr/p/2mKc155 >>> Anybody know what this nut is called and where to find the tool for it? >>> Cor. >>> >>> On Mon, Nov 15, 2021 at 8:28 PM John Lussmyer via EV <ev@lists.evdl.org> >>> wrote: >>>> >>>> I'd like to see a photo of that! >>>> >>>> On Mon Nov 15 20:11:26 PST 2021 ev@lists.evdl.org said: >>>>> It looks like a halfdome with 5 deep dimples for the tool to grab into >>>>> to undo the nut. >>>> >>>> >>>> -- >>>> >>>> Tigers prowl and Dragons soar in my dreams... >>>> _______________________________________________ >>>> Address messages to ev@lists.evdl.org >>>> No other addresses in TO and CC fields >>>> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >>>> ARCHIVE: http://www.evdl.org/archive >>>> LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org >>> _______________________________________________ >>> Address messages to ev@lists.evdl.org >>> No other addresses in TO and CC fields >>> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >>> ARCHIVE: http://www.evdl.org/archive >>> LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org > > _______________________________________________ > Address messages to ev@lists.evdl.org > No other addresses in TO and CC fields > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive > LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
