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tech / rec.crafts.metalworking / 36 mm 8 point box wrench

SubjectAuthor
* 36 mm 8 point box wrenchbob prohaska
+* Re: 36 mm 8 point box wrenchGerry
|+* Re: 36 mm 8 point box wrenchJim Wilkins
||`- Re: 36 mm 8 point box wrenchbob prohaska
|`* Re: 36 mm 8 point box wrenchbob prohaska
| `* Re: 36 mm 8 point box wrenchLeon Fisk
|  `- Re: 36 mm 8 point box wrenchLeon Fisk
+* Re: 36 mm 8 point box wrenchBob La Londe
|+* Re: 36 mm 8 point box wrenchbob prohaska
||`* Re: 36 mm 8 point box wrenchJim Wilkins
|| `* Re: 36 mm 8 point box wrenchBob La Londe
||  `* Re: 36 mm 8 point box wrenchJim Wilkins
||   `* Re: 36 mm 8 point box wrenchBob La Londe
||    `- Re: 36 mm 8 point box wrenchJim Wilkins
|`- Re: 36 mm 8 point box wrenchJim Wilkins
`* Re: 36 mm 8 point box wrenchRyan Carroll
 `- Re: 36 mm 8 point box wrenchbob prohaska

1
36 mm 8 point box wrench

<tbkseh$10q4t$1@dont-email.me>

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From: bp...@www.zefox.net (bob prohaska)
Newsgroups: rec.crafts.metalworking
Subject: 36 mm 8 point box wrench
Date: Mon, 25 Jul 2022 01:42:41 -0000 (UTC)
Organization: A noiseless patient Spider
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Summary: Is there anything close enough to file or peen?
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 by: bob prohaska - Mon, 25 Jul 2022 01:42 UTC

I'm likely to need a wrench similar to this:
https://www.amazon.com/Shimano-TL-DH10-36mm-Dynamo-Removal/dp/B00H6P8G80
(Just the 36 mm side) in the next week or two.

They aren't readily available, at least in the USA.

Can anybody think of a substitute that's close enough to be
filed and/or peened to get a decent fit? Max thickness has
to be no more than about 1/8 inch. It's grabbing an aluminum
part, so material strength isn't likely to be an issue. Full
circle grip is important, as the nut is thin and surface loads
high. The hub being worked on is already a little chewed up from
using a wrench that engages only two flats.

A thin 1-3/8" could be filed out, a 1-7/16" could be peened
smaller and filed to fit.

I started by looking at plumbing fitting wrenches and struck
out. Anybody got a better idea?

Thanks for reading,

bob prohaska

Re: 36 mm 8 point box wrench

<8i1sdht27336f0eseks88otm5nvcu6btbl@4ax.com>

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From: geraldrm...@yahoo.ca (Gerry)
Newsgroups: rec.crafts.metalworking
Subject: Re: 36 mm 8 point box wrench
Date: Sun, 24 Jul 2022 23:00:30 -0400
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 by: Gerry - Mon, 25 Jul 2022 03:00 UTC

On Mon, 25 Jul 2022 01:42:41 -0000 (UTC), bob prohaska
<bp@www.zefox.net> wrote:

>I'm likely to need a wrench similar to this:
>https://www.amazon.com/Shimano-TL-DH10-36mm-Dynamo-Removal/dp/B00H6P8G80
>(Just the 36 mm side) in the next week or two.
>
>They aren't readily available, at least in the USA.
>
>Can anybody think of a substitute that's close enough to be
>filed and/or peened to get a decent fit? Max thickness has
>to be no more than about 1/8 inch. It's grabbing an aluminum
>part, so material strength isn't likely to be an issue. Full
>circle grip is important, as the nut is thin and surface loads
>high. The hub being worked on is already a little chewed up from
>using a wrench that engages only two flats.
>
>A thin 1-3/8" could be filed out, a 1-7/16" could be peened
>smaller and filed to fit.
>
>I started by looking at plumbing fitting wrenches and struck
>out. Anybody got a better idea?
>
>Thanks for reading,
>
>bob prohaska
Looks like a relatively accurate layout job followed by work on the
drill press, die grinder and finish with a hand file to me.

Re: 36 mm 8 point box wrench

<tblu4b$16d80$1@dont-email.me>

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From: muratla...@gmail.com (Jim Wilkins)
Newsgroups: rec.crafts.metalworking
Subject: Re: 36 mm 8 point box wrench
Date: Mon, 25 Jul 2022 07:17:11 -0400
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 by: Jim Wilkins - Mon, 25 Jul 2022 11:17 UTC

"Gerry" wrote in message news:8i1sdht27336f0eseks88otm5nvcu6btbl@4ax.com...

On Mon, 25 Jul 2022 01:42:41 -0000 (UTC), bob prohaska
<bp@www.zefox.net> wrote:

>I'm likely to need a wrench similar to this:
>https://www.amazon.com/Shimano-TL-DH10-36mm-Dynamo-Removal/dp/B00H6P8G80
>(Just the 36 mm side) in the next week or two.
>
>They aren't readily available, at least in the USA.
>
>Can anybody think of a substitute that's close enough to be
>filed and/or peened to get a decent fit? Max thickness has
>to be no more than about 1/8 inch. It's grabbing an aluminum
>part, so material strength isn't likely to be an issue. Full
>circle grip is important, as the nut is thin and surface loads
>high. The hub being worked on is already a little chewed up from
>using a wrench that engages only two flats.
>
>A thin 1-3/8" could be filed out, a 1-7/16" could be peened
>smaller and filed to fit.
>
>I started by looking at plumbing fitting wrenches and struck
>out. Anybody got a better idea?
>
>Thanks for reading,
>
>bob prohaska
Looks like a relatively accurate layout job followed by work on the
drill press, die grinder and finish with a hand file to me.

----------------------

Mild steel can be sheared with a cold chisel by clamping it in a bench vise
with the cut line at the top of the jaws. Start at a small drilled hole and
angle the chisel. It's easier if the metal to be removed has been roughed
nearly to size by drilling rows of holes.
https://www.youtube.com/watch?v=P6YCaWvKmxY

Amazon shows other 36mm box and socket wrenches here:
https://www.amazon.com/Performance-Tool-W154-Front-Socket/dp/B000N35JVE?th=1

How is your battery project doing?

I bought a Weize 12V 18Ah LiFePO4 for a fairly reasonable $70 but the price
soon jumped to $100. Although the terminals are different it fit well into
an older yellow HF 5-in-1 power pack. I changed one of the cigarette lighter
outlets into Anderson PP45 on thicker wires so a 300 or 500W Bestek true
sine inverter will plug in, with less voltage drop. The pack already has a
mod sine 120VAC inverter and an air compressor, the function I use most. The
300W Bestek is my answer to chargers and power bricks that may have
capacitive AC inputs.

Re: 36 mm 8 point box wrench

<tbmgeg$1au2n$1@dont-email.me>

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From: bp...@www.zefox.net (bob prohaska)
Newsgroups: rec.crafts.metalworking
Subject: Re: 36 mm 8 point box wrench
Date: Mon, 25 Jul 2022 16:30:09 -0000 (UTC)
Organization: A noiseless patient Spider
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 by: bob prohaska - Mon, 25 Jul 2022 16:30 UTC

Jim Wilkins <muratlanne@gmail.com> wrote:
>
> Mild steel can be sheared with a cold chisel by clamping it in a bench vise
> with the cut line at the top of the jaws. Start at a small drilled hole and
> angle the chisel. It's easier if the metal to be removed has been roughed
> nearly to size by drilling rows of holes.
> https://www.youtube.com/watch?v=P6YCaWvKmxY
>
> Amazon shows other 36mm box and socket wrenches here:
> https://www.amazon.com/Performance-Tool-W154-Front-Socket/dp/B000N35JVE?th=1
>

Much too much 8-)

I neglected to mention that the 1/8" thick requirement was to clear
an electrical connector integral to the part. It'd take a lot of
grinding to make a clearance window in a socket and it's kinda hard
to file extra points in a socket. A flat stamped wrench is, if not
essential, a much better starting point and hopefully cheaper too.

> How is your battery project doing?
>

Since you ask, I'll post an update to the homepower newsgroup....

Thanks for writing,
bob prohaska

>

Re: 36 mm 8 point box wrench

<tbmgl9$1au2n$2@dont-email.me>

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From: bp...@www.zefox.net (bob prohaska)
Newsgroups: rec.crafts.metalworking
Subject: Re: 36 mm 8 point box wrench
Date: Mon, 25 Jul 2022 16:33:45 -0000 (UTC)
Organization: A noiseless patient Spider
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 by: bob prohaska - Mon, 25 Jul 2022 16:33 UTC

Gerry <geraldrmiller@yahoo.ca> wrote:
> On Mon, 25 Jul 2022 01:42:41 -0000 (UTC), bob prohaska
> <bp@www.zefox.net> wrote:
>
>>I'm likely to need a wrench similar to this:
>>https://www.amazon.com/Shimano-TL-DH10-36mm-Dynamo-Removal/dp/B00H6P8G80
>>(Just the 36 mm side) in the next week or two.
>>
>>They aren't readily available, at least in the USA.
>>
>>Can anybody think of a substitute that's close enough to be
>>filed and/or peened to get a decent fit? Max thickness has
>>to be no more than about 1/8 inch. It's grabbing an aluminum
>>bob prohaska

> Looks like a relatively accurate layout job followed by work on the
> drill press, die grinder and finish with a hand file to me.

Yes, but I still need the starting material. If I have to buy
_something_ I'd prefer it be at least close to the right size
and shape.

Thanks for writing,

Re: 36 mm 8 point box wrench

<tbmmev$1c9le$1@dont-email.me>

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From: lfis...@gmail.invalid (Leon Fisk)
Newsgroups: rec.crafts.metalworking
Subject: Re: 36 mm 8 point box wrench
Date: Mon, 25 Jul 2022 14:12:45 -0400
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 by: Leon Fisk - Mon, 25 Jul 2022 18:12 UTC

On Mon, 25 Jul 2022 16:33:45 -0000 (UTC)
bob prohaska <bp@www.zefox.net> wrote:

<snip>
>Yes, but I still need the starting material. If I have to buy
>_something_ I'd prefer it be at least close to the right size
>and shape.

Seems you are working on a Dynamo Hub?

https://www.nashbar.com/shimano-dhur7053d-dynamo-front-disc-hub-black-centerlock-12-x-100mm-36h-edhur7053dagl/p1373397

They have a couple wrenches in stock that might be modded:

https://www.nashbar.com/shimano-tlfc32-bottom-bracket-cup-installation-tool-adaptor-y13009210/p325019

https://www.nashbar.com/pedros-bottom-bracket-wrench-shimano-8notch-flat-wrench-for-8notch-6460270/p324774

A different idea is to get a flat washer with maybe a 35mm hole. File
inside of it to fit and then weld a handle on.

--
Leon Fisk
Grand Rapids MI

Re: 36 mm 8 point box wrench

<tbmni8$1c9le$2@dont-email.me>

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From: lfis...@gmail.invalid (Leon Fisk)
Newsgroups: rec.crafts.metalworking
Subject: Re: 36 mm 8 point box wrench
Date: Mon, 25 Jul 2022 14:31:36 -0400
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 by: Leon Fisk - Mon, 25 Jul 2022 18:31 UTC

On Mon, 25 Jul 2022 14:12:45 -0400
Leon Fisk <lfiskgr@gmail.invalid> wrote:

>On Mon, 25 Jul 2022 16:33:45 -0000 (UTC)
>bob prohaska <bp@www.zefox.net> wrote:
>
><snip>
>>Yes, but I still need the starting material. If I have to buy
>>_something_ I'd prefer it be at least close to the right size
>>and shape.
>
>
>Seems you are working on a Dynamo Hub?
>
>https://www.nashbar.com/shimano-dhur7053d-dynamo-front-disc-hub-black-centerlock-12-x-100mm-36h-edhur7053dagl/p1373397
>
>They have a couple wrenches in stock that might be modded:
>
>https://www.nashbar.com/shimano-tlfc32-bottom-bracket-cup-installation-tool-adaptor-y13009210/p325019
>
>https://www.nashbar.com/pedros-bottom-bracket-wrench-shimano-8notch-flat-wrench-for-8notch-6460270/p324774
>
>A different idea is to get a flat washer with maybe a 35mm hole. File
>inside of it to fit and then weld a handle on.
>

How about a big honking internal lock washer and weld a handle on.
Maybe 1-1/4 inch?:

https://www.mcmaster.com/standard-washers/lock-washers/internal-tooth-lock-washers-9/

Might be able to find those locally at store...

--
Leon Fisk
Grand Rapids MI

Re: 36 mm 8 point box wrench

<tbmrc8$143f$1@gioia.aioe.org>

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From: non...@none.com99 (Bob La Londe)
Newsgroups: rec.crafts.metalworking
Subject: Re: 36 mm 8 point box wrench
Date: Mon, 25 Jul 2022 12:36:41 -0700
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 by: Bob La Londe - Mon, 25 Jul 2022 19:36 UTC

On 7/24/2022 6:42 PM, bob prohaska wrote:
> I'm likely to need a wrench similar to this:
> https://www.amazon.com/Shimano-TL-DH10-36mm-Dynamo-Removal/dp/B00H6P8G80
> (Just the 36 mm side) in the next week or two.
>
> They aren't readily available, at least in the USA.
>
> Can anybody think of a substitute that's close enough to be
> filed and/or peened to get a decent fit? Max thickness has
> to be no more than about 1/8 inch. It's grabbing an aluminum
> part, so material strength isn't likely to be an issue. Full
> circle grip is important, as the nut is thin and surface loads
> high. The hub being worked on is already a little chewed up from
> using a wrench that engages only two flats.
>
> A thin 1-3/8" could be filed out, a 1-7/16" could be peened
> smaller and filed to fit.
>
> I started by looking at plumbing fitting wrenches and struck
> out. Anybody got a better idea?
>
> Thanks for reading,
>
> bob prohaska
>

In a pinch I'd probably machine something out of 4140HT for that. In
fact I have several collet wrenches in my tool holders box where I did
exactly that.

4140HT is more than hard enough for an aluminum fitting, and if I needed
harder it doesn't have an overly complex heat treating recipe for
something as simple as a box wrench. It might warp a little, but its
just a wrench.

--
This email has been checked for viruses by AVG.
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Re: 36 mm 8 point box wrench

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From: bp...@www.zefox.net (bob prohaska)
Newsgroups: rec.crafts.metalworking
Subject: Re: 36 mm 8 point box wrench
Date: Mon, 25 Jul 2022 21:37:58 -0000 (UTC)
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 by: bob prohaska - Mon, 25 Jul 2022 21:37 UTC

Bob La Londe <none@none.com99> wrote:
> On 7/24/2022 6:42 PM, bob prohaska wrote:
>> I'm likely to need a wrench similar to this:
>> https://www.amazon.com/Shimano-TL-DH10-36mm-Dynamo-Removal/dp/B00H6P8G80
>> (Just the 36 mm side) in the next week or two.
>>
>> They aren't readily available, at least in the USA.

> In a pinch I'd probably machine something out of 4140HT for that. In
> fact I have several collet wrenches in my tool holders box where I did
> exactly that.

Visiting a local bike shop proved enlightening. It appears that
a 39 mm 16 notch bottom bracket wrench is 39 mm groove-to-groove.
That matches the 39 mm point-to-point size of the octagon nut. I'm
not sure how well the wrench will clear the flats, but that can be
fixed with a little filework. Much easier than starting from a blank
piece of metal.

When told I was looking for a "TL-DH10" wrench the shop clerk found
it out of stock as I did and eventually said it appeared to be dis-
continued. If it's functionally the same as a standard bottom bracket
wrench that would nicely explain why it's gone missing.

Unfortunately the bike shop didn't have a 39 mm bottom bracket wrench.
At least I know what I'm looking for now....

Thanks to all for reading and replying!

bob prohaska

Re: 36 mm 8 point box wrench

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From: muratla...@gmail.com (Jim Wilkins)
Newsgroups: rec.crafts.metalworking
Subject: Re: 36 mm 8 point box wrench
Date: Mon, 25 Jul 2022 19:07:11 -0400
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 by: Jim Wilkins - Mon, 25 Jul 2022 23:07 UTC

"Bob La Londe" wrote in message news:tbmrc8$143f$1@gioia.aioe.org...

In a pinch I'd probably machine something out of 4140HT for that. In
fact I have several collet wrenches in my tool holders box where I did
exactly that.

4140HT is more than hard enough for an aluminum fitting, and if I needed
harder it doesn't have an overly complex heat treating recipe for
something as simple as a box wrench. It might warp a little, but its
just a wrench.

------------------

That's great if you have it. If not, discarded saw blades can be annealed
and cut into flat shapes, then rehardened if necessary. A test piece cut
from an annealed 6" carbide-tipped saw and rehardened scratched glass.

I got a stack of dull used blades from a kitchen installer who was cleaning
out his work van.

For thicker stock you could try lawnmower blades and car leaf springs. I
practiced blacksmithing, hardening and tempering on an old car spring, then
bought a piece of new (no hidden cracks) 5160 spring stock from a custom
shop. I thought smithing could be a good way to shape custom tools too large
for my lathe and mill. It might if I had a lot more skill and practice, I've
had better luck welding or bolting manageable pieces together. For example a
sharp-cornered hex shaped opening can be cut in two halves with an end mill.

Re: 36 mm 8 point box wrench

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From: muratla...@gmail.com (Jim Wilkins)
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Subject: Re: 36 mm 8 point box wrench
Date: Mon, 25 Jul 2022 19:32:28 -0400
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 by: Jim Wilkins - Mon, 25 Jul 2022 23:32 UTC

If I had to make one I think I'd lay out and scribe the 8 point pattern on
blued mild steel, drill 1/16" at the points, hog out the middle with a hole
saw and cut as close as I could see to the lines with a fine tooth hacksaw.

Re: 36 mm 8 point box wrench

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Subject: Re: 36 mm 8 point box wrench
From: cyanrarr...@gmail.com (Ryan Carroll)
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 by: Ryan Carroll - Tue, 26 Jul 2022 19:16 UTC

I'm not sure how important it is to make something so purpose built for this. Couldn't you take a rubber strap wrench (like for oil filters) and rip it down the middle to be narrow enough for your hub nut? I've taken off the caps from Shimano's internally geared hubs with strap wrenches to good success.

Re: 36 mm 8 point box wrench

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From: non...@none.com99 (Bob La Londe)
Newsgroups: rec.crafts.metalworking
Subject: Re: 36 mm 8 point box wrench
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 by: Bob La Londe - Tue, 26 Jul 2022 21:37 UTC

On 7/25/2022 4:32 PM, Jim Wilkins wrote:
> If I had to make one I think I'd lay out and scribe the 8 point pattern
> on blued mild steel, drill 1/16" at the points, hog out the middle with
> a hole saw and cut as close as I could see to the lines with a fine
> tooth hacksaw.
>

THAT sounds like to much work for me. I CNC all the stuff like that
these days.

I remember seeing some giant wrench or nut made that way shown in a high
school mechanical drawing class, and I thought to myself that it looked
like a work of desperation.

Ok, I admit I have made wrenches fit an application with a torch,
grinder, and/or file before. Like I said. It was a work of desperation.

--
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Re: 36 mm 8 point box wrench

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From: bp...@www.zefox.net (bob prohaska)
Newsgroups: rec.crafts.metalworking
Subject: Re: 36 mm 8 point box wrench
Date: Wed, 27 Jul 2022 00:39:30 -0000 (UTC)
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 by: bob prohaska - Wed, 27 Jul 2022 00:39 UTC

Ryan Carroll <cyanrarroll@gmail.com> wrote:
> I'm not sure how important it is to make something so purpose built for this. Couldn't you take a rubber strap wrench (like for oil filters) and rip it down the middle to be narrow enough for your hub nut? I've taken off the caps from Shimano's internally geared hubs with strap wrenches to good success.

The short answer is that I don't know yet. This particular hub was
disassembled a couple of years ago by a mechanic at a local bike shop
who was bigger, younger and stronger than me, using an open-end (IIRC)
wrench. He ended up damaging some of the (very short) octagonal flats.

We were both astonished at how tight it was and that he didn't wreck it.

After cleaning the inside of the hub (and seemingly fixing the persistent
scraping noise it made) I screwed the hub back together with relatively
modest torque and a trace of grease on the threads to prevent galling.

If I'm lucky it'll come apart as gently as it went back together.
However, the male thread is prone to rolling within the female thread.
Geometrically it's like a tire that's loose and creeping on its rim.
The male thread, being smaller, rotates faster than the female thread
and so gets tighter.

By the end of the week I should know the answer to your question.

8-)

bob prohaska

Re: 36 mm 8 point box wrench

<tbsibe$2lk4h$1@dont-email.me>

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From: muratla...@gmail.com (Jim Wilkins)
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Subject: Re: 36 mm 8 point box wrench
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 by: Jim Wilkins - Wed, 27 Jul 2022 23:39 UTC

"Bob La Londe" wrote in message news:tbpmr6$1knd$1@gioia.aioe.org...

On 7/25/2022 4:32 PM, Jim Wilkins wrote:
> If I had to make one I think I'd lay out and scribe the 8 point pattern on
> blued mild steel, drill 1/16" at the points, hog out the middle with a
> hole saw and cut as close as I could see to the lines with a fine tooth
> hacksaw.
>

THAT sounds like to much work for me. I CNC all the stuff like that
these days.

I remember seeing some giant wrench or nut made that way shown in a high
school mechanical drawing class, and I thought to myself that it looked
like a work of desperation.

Ok, I admit I have made wrenches fit an application with a torch,
grinder, and/or file before. Like I said. It was a work of desperation.

------------------

Yes, it's the sort of project given to students to teach them dexterity and
patience. I still do it because I still need those lessons, plus I can cut
shapes by hand that I can't measure or cut on machine tools, especially on
parts too awkward or delicate to clamp tightly. I'm getting good enough to
make the light press fits in metal that I learned long ago to do in wood.

However I learned the hard way NOT to fit a car fender rust patch snugly.
They need clearance to expand from welding heat.

If I had CNC I'd certainly use it, but my 1950's and 60's model shop machine
tools don't even have DROs. I spend many years designing aerospace circuit
boards and their metal enclosures on a CNC workstation.

Re: 36 mm 8 point box wrench

<tbv23t$1fmg$1@gioia.aioe.org>

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From: non...@none.com99 (Bob La Londe)
Newsgroups: rec.crafts.metalworking
Subject: Re: 36 mm 8 point box wrench
Date: Thu, 28 Jul 2022 15:20:45 -0700
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 by: Bob La Londe - Thu, 28 Jul 2022 22:20 UTC

On 7/27/2022 4:39 PM, Jim Wilkins wrote:
> "Bob La Londe"  wrote in message news:tbpmr6$1knd$1@gioia.aioe.org...
>
> On 7/25/2022 4:32 PM, Jim Wilkins wrote:
>> If I had to make one I think I'd lay out and scribe the 8 point
>> pattern on blued mild steel, drill 1/16" at the points, hog out the
>> middle with a hole saw and cut as close as I could see to the lines
>> with a fine tooth hacksaw.
>>
>
>
> THAT sounds like to much work for me.  I CNC all the stuff like that
> these days.
>
> I remember seeing some giant wrench or nut made that way shown in a high
> school mechanical drawing class, and I thought to myself that it looked
> like a work of desperation.
>
> Ok, I admit I have made wrenches fit an application with a torch,
> grinder, and/or file before.  Like I said.  It was a work of desperation.
>
> ------------------
>
> Yes, it's the sort of project given to students to teach them dexterity
> and patience. I still do it because I still need those lessons, plus I
> can cut shapes by hand that I can't measure or cut on machine tools,
> especially on parts too awkward or delicate to clamp tightly. I'm
> getting good enough to make the light press fits in metal that I learned
> long ago to do in wood.
>
> However I learned the hard way NOT to fit a car fender rust patch
> snugly. They need clearance to expand from welding heat.
>
> If I had CNC I'd certainly use it, but my 1950's and 60's model shop
> machine tools don't even have DROs. I spend many years designing
> aerospace circuit boards and their metal enclosures on a CNC workstation.
>

I definitely have manual machines in the shop, but I love me some DROs.
I even bought a DRO for the POS manual mill mold making video series.
I'll probably stick it on the machine as a supplemental video after
the 2nd project video in the series. (Probably a spindle upgrade after
the 1st.) Been debating on whether or a DRO would be useful on the
little turret lathe. I think not. Once a job is setup on it the stops
should take care of that for repetitive work. I am prepared to consider
it though.

--
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Re: 36 mm 8 point box wrench

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Subject: Re: 36 mm 8 point box wrench
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 by: Jim Wilkins - Fri, 29 Jul 2022 00:55 UTC

"Bob La Londe" wrote in message news:tbv23t$1fmg$1@gioia.aioe.org...

I definitely have manual machines in the shop, but I love me some DROs.
I even bought a DRO for the POS manual mill mold making video series.
I'll probably stick it on the machine as a supplemental video after
the 2nd project video in the series. (Probably a spindle upgrade after
the 1st.) Been debating on whether or a DRO would be useful on the
little turret lathe. I think not. Once a job is setup on it the stops
should take care of that for repetitive work. I am prepared to consider
it though.

-------------

After machining a run of parts on a DRO Bridgeport at work I bought
inexpensive scales for my Clausing and started making mounts and chip
shields. Part way through I realized that what I make at home often attaches
to something I don't have a dimensioned drawing for, so I have to cut to
fit, for which the dials work well enough, corrections are typically a
pencil line width or less. The last thing I made has a cutout for an old
analog panel meter with mounting studs in a triangular pattern that I laid
out with dividers. A pointed wiggler usually gets me within 0.005" of
scribed lines.

My electronic enclosures are light aluminum or plastic that deforms a little
in the vise and doesn't repeatedly zero the same way against the stop, so I
use a left rear hole or cutout corner as the zero and scribe the layout onto
a paper label. The analog meters have snap-on bezels that flex at the edges
and weren't a reliable baseline to measure X - Y mounting dimensions.

When I forget where I am rulers graduated to 0.1" find the handle turns
count.

1
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