Knurler’s Bad Day

[PaulRParticipant @paulr]

I think this guy had too much of the old Baijiu, one of the knurls runs right off the top of the screw and the screws wobble more than he probably did. I actually laughed out loud until I remembered that I had handed over hard-earned money for this 'workmanship'.

[PaulRParticipant @paulr]

[Michael GilliganParticipant @michaelgilligan61133]

Exquisitey hand-crafted

None of your nasty CNC machining there !!

The spirit of William Morris lives on.

MichaelG.

[MWParticipant @mw27036]

faithful do some pretty good steel die wrenches of most sizes. I'd try them.

Michael W

[HacksawParticipant @hacksaw]

Child labour ..?

[jason udallParticipant @jasonudall57142]

All parts inspected.
None rejected.

[not done it yetParticipant @notdoneityet]

The quality of the holder is clearly apparent. If the die is of similar ilk, the user will not get value for money – however little it may have cost. Unless use once and throw away.

[Tony Pratt 1Participant @tonypratt1]

Clearly made to a price, whether it actually does the job will not come into the equation. Buy cheap buy twice etc.

Tony

[JAParticipant @ja]

Now, that takes real skill! The knurling on the right hand screw is particularly impressive.

An apprentice, a hammer, file and cold chisel, Birmingham comes to mind. Certainly not China or India.

Do the screws have an ACME thread?

JA

[MWParticipant @mw27036]

Posted by JA on 02/12/2016 09:30:36:

Do the screws have an ACME thread?

JA

 

It appears to be, as far as I can see. The bad knurl is probably the result of a single sided knurl that has made poor contact, a clamp type wouldn't do this.

Infact, They don't look particularly "lathed" to me, more like a forged or cast kind of look about them, is it possible they did the knurl with a kind of a crimping hand tool?

Michael W

Edited By Michael Walters on 02/12/2016 13:49:06

[Neil WyattModerator @neilwyatt]

The screws are probably knocked out by the thousand in a back street workshop in Bombay.

Neil

[Ian PParticipant @ianp]

Posted by PaulR on 01/12/2016 22:44:53:

I think this guy had too much of the old Baijiu, one of the knurls runs right off the top of the screw and the screws wobble more than he probably did. I actually laughed out loud until I remembered that I had handed over hard-earned money for this 'workmanship'.

Presumably you did not hand over very much money.

The picture appears to show a low cost, badly made, die holder. It probably a cheap import from a non English speaking company (mm shown in capital letters).

The screws will have never been anywhere near a lathe, they look to have rolled threads but I cannot work out whether they were rolled before or after the head was upset.

I doubt the 'Knurling' was done by any rotary process.

If the holder body is usable why not just tap the holes and use some hex socket capscrews?

Ian P

[KWILParticipant @kwil]

Thats always assuming that the diameter of the hole is the correct size for a die!

[Enough!Participant @enough]

Posted by Michael Gilligan on 01/12/2016 22:49:49:

The spirit of William Morris lives on.

That's funny!

[Ian PParticipant @ianp]

Posted by Bandersnatch on 03/12/2016 01:44:10:

Posted by Michael Gilligan on 01/12/2016 22:49:49:

The spirit of William Morris lives on.

That's funny!

I agree, he probably meant Maurice Austin

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Ian Phillips on 03/12/2016 08:56:34:

….

Whereas that's not funny

MichaelG.

.

Please do your own jokes, Ian

Edited By Michael Gilligan on 03/12/2016 09:23:48

[AjohnwParticipant @ajohnw51620]

Ex B'ham apprentices from just about any company were in great demand everywhere.

I take it that it's from India.

Interesting. When the people at Graham Engineering got to know me they always sorted out old stock from India for me rather than where they were getting the stuff from then. Mix of Taiwan and China. All perfect in every respect. I sometimes wish I had bought more – especially die holders. In that line I juts bought a massive tap wrench.

They also produced a number of clone Super 7's. From what I have heard they were rather good even to the extent of using the correct grade of cast iron.

Going on reports on Indian made microscopes they seem to have lost the plot these days. Pity as they see themselves as high tech competitors with the far east. They do seem to be having some success in some areas.

Not sure who Maurice Austin is. If car related all that crap was largely down certain quarters not wanting to make anything in the UK.

John

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Edited By Ajohnw on 03/12/2016 11:14:16

Edited By Ajohnw on 03/12/2016 11:14:45

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Ajohnw on 03/12/2016 11:13:13:

Not sure who Maurice Austin is.

.

Ref: Jungle Training Centre

**LINK**

https://en.m.wikipedia.org/wiki/Maurice_Austin

MichaelG.

[Alan Waddington 2Participant @alanwaddington2]

Considering the knurls were probably done by a Six year old using 100 year old equipment, working 80 hrs a week for Ten bob a month, i reckon we ought to cut him some slack……

[Tim StevensParticipant @timstevens64731]

I bet the knurls were not done by knurling, as we understand it. Rather they look as though they were broached – by pushing them through a die with internal serrations. Hence the result – cock-eyed in = cock-eyed out.

And the threads are rolled, but again on undersize stock. So, make some proper screws and William Morris ( the one who made motor cars for the masses, not posh tat for the rich) will indeed be pleased.

Regards, Tim

[Harry WilkesParticipant @harrywilkes58467]

Posted by JA on 02/12/2016 09:30:36:

Now, that takes real skill!

An apprentice, a hammer, file and cold chisel, Birmingham comes to mind

JA

The mention of Birmingham reminds me of some years back when I worked for Elkintons the silversmith's had transfered from Birmingham to Walsall (hence the connection) and every Friday afternoon the apprentice silversmiths would disfigure any silverware that could not be 'repaired' with the above tools mainly the hammer

H

[AjohnwParticipant @ajohnw51620]

Must admit I did have a few days practice shaping mild steel with a self made cold chisel. 1 inch wide chamfers. 2 done with cold chisel and 2 done with a hacksaw. About 4" per side and then filed.

Think I preferred the chisel. Surprisingly precise, quicker and easier on the arms except it was my first use of a 5lb engineers hammer. Not much call for them after that.

John

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[Author]

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