Re: [EVDL] What type of magic is this nut and where to get a tool for it?

On 20 Nov 2021 at 0:47, Cor van de Water via EV wrote: > They still seem to have 10% residual voltage after ~6 years neglect > (no charging). As you probably know, for NiCd, that's not really neglect. They don't need to be kept charged, and are quite happy stored at 0% SOC. In fact some

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

Remember, we are talking over 250 cells here. Grinding through 250 heavy bus bars is nigh impossible, let alone welding nuts on top of the half dome ones, because it is over 500 nuts... In the mean time I have sacrified a 1/2" orphan socket that I had laying around and cut 5 tines on it, then

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

Another option, if losing the bus bars is okay, might be to cut the bus bars in half (sawzall + shopvac to control metal dust ?), and then try to push/pull each bar end piece in the direction that should loosen each nut (counterclockwise). The nut only needs to turn enough to loosen the nut so

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

On 19 Nov 2021 at 14:28, Cal Frye via EV wrote: > Pin punch and a light hammer? Might work. Another thought - I've never tried such a thing, but I wonder if you could spot-weld larger sacrificial hex nuts to the top of the security nuts. I suppose that might be hazardous with the possibility

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

Pin punch and a light hammer? Not kidding, it may be tedious but quicker than fabbing a socket that /might/ fit... --Cal On 11/17/21 5:47 PM, Cor van de Water via EV wrote: Others have suggested this secure wheel nut also, the differences are: The NiCd cell nuts have 5 dimples equidistant

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

Looks exactly the same to me Sent from AT Yahoo Mail for iPhone On Wednesday, November 17, 2021, 4:28 PM, David Murphy via EV wrote: I can’t say this is exactly the same, but it looks quite similar https://www.kchilites.com/kc-lkz-m8-1-25-light-lock-security-nut-set-7222.html On Wed, Nov

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

I noticed too that the dimples cannot be directly engaged from above ( without done kind of spring loaded device). I wonder if it takes some kind of pin wrench? -Steve > On Nov 17, 2021, at 5:47 PM, Cor van de Water via EV > wrote: > > Others have suggested this secure wheel nut also, the

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

Others have suggested this secure wheel nut also, the differences are: The NiCd cell nuts have 5 dimples equidistant (every 72 deg one dimple) and the dimples are ball shaped, not cylinder. In fact, the balls that engage the dimples will need to be on springs to allow them to push in, as the top

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

I can’t say this is exactly the same, but it looks quite similar https://www.kchilites.com/kc-lkz-m8-1-25-light-lock-security-nut-set-7222.html On Wed, Nov 17, 2021 at 2:14 PM Lawrence Rhodes via EV wrote: > > > .Alternatively, you can make careful measurements, CAD up a mating tool, > .3D

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

.Alternatively, you can make careful measurements, CAD up a mating tool, .3D print it in plastic to check the fit and to make refinements in the .CAD model, and then have it 3D printed in metal. There are tons of fturn-around 3D printing houses on-line. http://Www.ShapeWays.com There is 3d

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

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" 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

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

Especially when those things cost several dollars each. My guess is they had a bunch laying around for some reason. > Why on earth would someone use such a high security nut on a vehicle battery? > Maybe they are > planning on that for places where car batteries are routinely stolen... > > 73 >

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

Before you start grinding, try the $12 pin socket. You'll probably thank me: https://amzn.to/3HmXL3T On Tue, Nov 16, 2021 at 2:54 PM Haudy Kazemi via EV wrote: > It may be custom security hardware with limited access to tools. It doesn't > appear to be something that would match something in

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

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

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

I think this one is beyond Harbor Freight. This is a _highly_ unusual fastener. If you can't find the proper socket, you may have to resort to fabricating one, perhaps by milling or grinding five grooves to engage the five nubs on the fasteners, inside a thick-walled socket of the

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

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

[EVDL] What type of magic is this nut and where to get a tool for it?

I bet Harbor Freight will have it. If you can't take a sample take a couple of photos at different angles. Lawrence Rhodes ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE:

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

Yeah, I've never seen those before. That "universal socket" with pins that I linked to will probably work on these though. On Tue, Nov 16, 2021 at 5:36 AM John Lussmyer via EV wrote: > On Tue Nov 16 02:29:30 PST 2021 ev@lists.evdl.org said: > >Here two pics of the battery box with the weird

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

It's nice to have a photo if possible. I don't know if we can send photos thru the list though. It sounds like a security nut of some type. B On Mon, Nov 15, 2021, 11:29 PM Cor van de Water via EV wrote: > OK, I opened the battery box with the BB600 or similar SAFT flooded > NiCd's and was

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

> On Tue Nov 16 02:29:30 PST 2021 ev@lists.evdl.org said: > >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 Why on earth would someone use such a high security nut on a vehicle battery? Maybe

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

Cor, Kinmar makes a five lobe security nut / bolt head design and tool. Actually several. Avoid the "permanent" type because it looks like your application is removable. Also, I had trouble viewing the picture clearly. The Kinmar lobes are a little directional, yours look more even or regular, I

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

On Tue Nov 16 02:29:30 PST 2021 ev@lists.evdl.org said: >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 Wow, those are WEIRD. -- Try my Sensible Email package!

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

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 wrote: > > I'd like to

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

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Re: [EVDL] What type of magic is this nut and where to get a tool for it?

If you can't find the right tool, I've had this cheezy thing work on many crazy security bolts/nuts, especially the 5 sided "pentalobe" ones Tesla is now using: https://amzn.to/3HmXL3T On Mon, Nov 15, 2021 at 8:11 PM Cor van de Water via EV wrote: > OK, I opened the battery box with the BB600

Re: [EVDL] What type of magic is this nut and where to get a tool for it?

is it something like these? https://www.amazon.com/Lightronic-Stainless-Anti-Theft-Security-Hardware/dp/B073QG8FNH My PGP public key: https://vanderwal.us/evdl_pgp.key November 15, 2021 9:11 PM, "Cor van de Water via EV" wrote: > OK, I opened the battery box with the BB600 or similar SAFT

[EVDL] What type of magic is this nut and where to get a tool for it?

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

[EVDL] What type of magic is this nut and where to get a tool for it?

OK, I opened the battery box with the BB600 or similar SAFT flooded NiCd's and was flabbergasted by the type of nut used on the threads of the cells interconnects. It looks like a halfdome with 5 deep dimples for the tool to grab into to undo the nut. I have never seen anything like this. Anybody