Threading question

Model Engineering in UK - Model engineering, metal crafts in UK 

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Threading question grumpyat 02-04-2008
Posted by moray on February 5, 2008, 1:28 pm
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>
>>
>> Use by hand - it's just there to keep things in line.
>>
>> By that do you mean I rotate the die by hand using the 'arm' for half a
>> turn then turn chuck back half a turn and repeat? or do I rest the arm
>> against the bed and turn chuck by hand? I know it sounds dumb but I
>> really cannot get my head around it!
> Many thanks
>
> also...any clues how I can remove my erroneous posts? Ta!!

Either rest the arm against the bed and turn the chuck by hand, or hold the
chuck and turn the arm.
Six or half a dozen, how you do it. Main thing is you still cut the threads
manually, as Charles said, it's just a method of holding the die inline.

As for the extra posts, even if you can delete them of the original server,
they'll probably remain on numerous other ones. I wouldn't worry about them.



Posted by Tony Jeffree on February 5, 2008, 1:40 pm
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On Tue, 5 Feb 2008 10:03:10 -0800 (PST), grumpyat@eanx100.co.uk wrote:

>also...any clues how I can remove my erroneous posts? Ta!!

No Can Do. Sorry...they are out there for the duration.

Regards,
Tony

Posted by Sandy Morton on February 6, 2008, 3:12 pm
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> >also...any clues how I can remove my erroneous posts? Ta!!

> No Can Do. Sorry...they are out there for the duration.

Blame the wife.

--
A T (Sandy) Morton
on the Bicycle Island
In the Global Village
http://www.millport.net

Posted by ravensworth2674 on February 5, 2008, 1:08 pm
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Chuck, tap and die!

(A precis as I got blasted for rambling!)

Have fun

Norm

Posted by Austin Shackles on February 7, 2008, 1:19 pm
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On or around Tue, 05 Feb 2008 17:57:02 +0000, Charles Ping

>On Tue, 5 Feb 2008 08:15:34 -0800 (PST), grumpyat@eanx100.co.uk wrote:
>
>>Many thanks for all you comments / suggestions. I will treat them with
>>the contempt that they so richly deserve.
>>I have no idea what happened, but I cannot post 14 times in 1
>>minute...PC error mayhap? Cannot remove them though
>>Anyway now to my original question
>>
>>This may sound a bit of a numb question,but....
>>I have just received another box of bits to go with the Viceroy I was
>>given last year. Includes chucks, dial gauges, tooling, grease guns
>>etc. {more boxes come to light the deeper the shed is explored!!}.
>>Anyway, one of the items is a Tailstock die holder. Takes 2 sizes of
>>die [boxes of dies as well, he he he ] Question, this is where it may
>>sound numb, do I use the lathe in back gear at slowest speed? do I
>>hold the side handle or let it rest against the bed? Just seems to me
>>that there may be 'quite a lot of torque' when lathe is running if I
>>have got hold of the side arm!
>>
>>Many thanks
>
>Use by hand - it's just there to keep things in line.

I've got a dieholder which fits in a chuck, and I run that under power on M8
threads on mild steel, with a chuck in the tailstock. The student in low
gear runs at about 30-summat, ISTR rpm. It needs watching and coolant/lube
but it has a saftey feature that if you don't tighten the chuck too much it
will only transmit so much torque, and so if it jams, it spins the holder in
the chuck.

No doubt one day it'll all go bang and the die witll fall apart or something
:-)

Hmmm. that reminds me, who sells LH metric dies? I need a new M8x1.25LH,
as mine is more split than it's supposed to be. I may say that I didn't
break it.
--
Austin Shackles. www.ddol-las.net my opinions are just that
Travel The Galaxy! Meet Fascinating Life Forms...
------------------------------------------------
>> http://www.schlockmercenary.com/ << ...and Kill them.
a webcartoon by Howard Tayler; I like it, maybe you will too!

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