HDTenEightyP/NetNews huggingface dataset:
From: djenkins@axion.bt.co.uk (David Jenkins)
Newsgroups: trial.rec.metalworking
Subject: Re: Steel Warpage
Date: 9 Nov 92 08:12:55 GMT
Reply-To: djenkins@axion.bt.co.uk (David Jenkins)
Distribution: trial
Organization: British Telecom Research Labs


In article <3662@news.cerf.net>, jonesm@nic.cerf.net (Matthew Jones) writes:
|> In article <1992Nov5.085956.15522@axion.bt.co.uk>
|> djenkins@zaphod.axion.bt.co.uk writes:
|> >> In article <3630@news.cerf.net>, jonesm@nic.cerf.net (Matthew
|> Jones) writes...
|> >>>In the finger treadle I am currently building, I fabricated a
|> crankshaft
|> >>>out of CRS. The crankshaft has warped and does not "run" very
|> well.
|> 
|> >Cast iron does have advantages, though, e.g. it does make a good
|> bearing
|> >surface, and it is easy to machine with minimal distortion.  Its
|> brittleness
|> >has to be taken into account.
|> 
|> A discussion of cast iron is required here.
|> First, where does one find cast iron?
|> Second it is my understanding that cast iron is a strong abrasive and
|> therefore
|> will be very hard on the lathe. Like it will wear down the ways in
|> the lathe.
|> Third what are the machining issues are involved with cast iron?
|> Brittle?
|> 
|> Matthew Jones
|> jonesm@cerf.net


Having just machined several iron castings for my 5" gauge steam loco
(nearly finished :-) I think I can answer at least some of the
queries...

1. In the UK cast iron is available either as castings for specific
projects, square or round bar, or castings made to order by foundries.

2. The *surface* of raw castings includes sand from the mould (USA =
mold?) and therefore is very hard and abrasive.  Tungsten carbide tools
are required to get below this skin to the clean iron - HSS tools will
blunt very quickly.

3. When machining iron the graphite will be released and will be very
invasive.  Unfortunately this is not pure graphite with all its
lubricating properties as it includes some iron.  As this gets
everywhere it can cause wear.  The answer is simple: be *very* thorough
when cleaning after working on iron.

4. Machining is usually easy - speed should be quite slow, with no
lubricant (the graphite helps the tool).  Look at a reference book for
the exact speed (mine's at home).

5. Perhaps I over-emphasised the brittleness - they make car crankshafts
out of iron, so it's not a great problem when design is right.  Smooth
flowing shapes and no sharp corners, and avoiding high loads far from a
supporting surface.  As the original query was about a model crankshaft,
then there shouldn't be a problem (but don't quote me on this, I have
been known to be wrong occasionally :-).

The dirtyness is the greatest nuisance.

Good luck!


David Jenkins

:Error #9851 * REALITY.SYS Corrupted: Re-boot universe? (Y/N/Q)
From: djenkins@axion.bt.co.uk (David Jenkins)
Newsgroups: trial.rec.metalworking
Subject: Re: Lathe Bench tops
Date: 13 Nov 92 08:27:05 GMT
Reply-To: djenkins@axion.bt.co.uk (David Jenkins)
Organization: British Telecom Research Labs


In article <1992Nov11.110603.317@news.uwyo.edu>, jimkirk@news.uwyo.edu writes:
|> I am planning to make a bench for a small lathe, out of (of all things) a
|> Control Data Corporation model 405 card reader.  But I need some suggestions
|> as to the top.
|> 
|> The two main choices seem to be wood, e.g. plywood, or something covered
|> in formica or similar materials.  I am leaning towards the formica because
|> of the ease of cleaning.  On the other hand, a wood top will probably
|> survive dings and dropped objects better.
|> 

The biggest problems with wood are warping and lack of rigidity.  Really
thick plywood should be OK (2") or other composite boards, e.g.
blockboard (that's what it's called in the UK - imagine square section
timber glued side by side then covered with veneer) or *very* thick
chipboard (with formica on top is OK).

When I first got a lathe I bolted it to my bench, which has a top made
of 4 layers of 3/4" chipboard - it warped under the weight over a period
of 6 months!

My final choice was to purchase a slab of steel just wide and long
enough to support the lathe, with a thin sheet metal drip tray on top. 
This was welded to legs, but it could have gone on a bench.


David Jenkins

:Error #9851 * REALITY.SYS Corrupted: Re-boot universe? (Y/N/Q)
From: kish@grandam.watson.ibm.com (Bill Kish)
Subject: Re: Lathe Bench tops
Date: Thu, 12 Nov 92 20:24:45 GMT
Reply-To: kish@grandam.watson.ibm.com (Bill Kish)
Organization: IBM TJ Watson Research


I think that a laminated maple (Butcher Block) bench top is the nicest
in terms durability, stability and apearance. Also, it won't crack like
formica if you drop a heavy object on it. 

Maple tops are available from industrial suppliers, but they are expensive!

Polyurethane makes a nice finish.

                              -Bill Kish
From: djenkins@axion.bt.co.uk (David Jenkins)
Newsgroups: trial.rec.metalworking
Subject: Re: Steel Warpage
Date: 9 Nov 92 08:43:42 GMT
Reply-To: djenkins@axion.bt.co.uk (David Jenkins)
Distribution: trial
Organization: British Telecom Research Labs


In article <1992Nov9.081255@axion.bt.co.uk>, djenkins@axion.bt.co.uk
(David Jenkins) writes:
|> 
|> 
|> 
|> 3. When machining iron the graphite will be released and will be
|> very
|> invasive.  Unfortunately this is not pure graphite with all its
|> lubricating properties as it includes some iron.  As this gets
|> everywhere it can cause wear.  The answer is simple: be *very*
|> thorough
|> when cleaning after working on iron.
|> 


I forgot to mention... before machining iron clean off all surplus oil
from the lathe bed, etc. leaving a barely oiled surface.  This makes
later cleaning much easier and prevents the creation of an abrasive
paste.

If this all sounds grim, I should say that I'd rather machine iron than
stainless steel!


David Jenkins

:Error #9851 * REALITY.SYS Corrupted: Re-boot universe? (Y/N/Q)
From: gary_preckshot@lccmail.ocf.llnl.gov (gary preckshot)
Newsgroups: trial.rec.metalworking
Subject: Name controversies
Date: 10 Nov 92 01:08:47 GMT
Organization: LLNL

Many of the folks in this group may have gotten the impression that the
name controversy over this group's renaming is unusual and that the
Usenet sys admins are a monolithic lot.  This isn't the case and there
are other groups with people within extremely annoyed at changes of
name or name selection "imposed" by a group of sys admins.  Some of
the annoyed are also sys admins.  A group that is even now generating
more controversy than rec.crafts.metalworking is the renaming of
rec.music.synth to a name many of the participants in the group find
objectionable.  If you find this hard to believe, please review the
extensive string (longer even than rec.crafts.metalworking) on news.groups.
I'm enclosing one post and an e-mail exchange from this other controversy.
I haven't participated, so please don't flame me if you don't like the
language.

The keyword in the posting title is *BAD*

=========================================
From: jimkirk@news.uwyo.edu
Newsgroups: trial.rec.metalworking
Subject: Lathe Bench tops
Date: 11 Nov 92 11:06:02 MST
Distribution: world
Organization: University of Wyoming - Laramie, WY

I am planning to make a bench for a small lathe, out of (of all things) a
Control Data Corporation model 405 card reader.  But I need some suggestions
as to the top.

The two main choices seem to be wood, e.g. plywood, or something covered
in formica or similar materials.  I am leaning towards the formica because
of the ease of cleaning.  On the other hand, a wood top will probably
survive dings and dropped objects better.

Any suggestions?

If formica, smooth or textured; color/pattern ideas?

If wood, I'm presuming some sort of finish to protect it from oil;
suggestions on type of wood and/or finish?

Just looking for ideas from the rest of the folks!

Jim
From: jonesm@nic.cerf.net (Matthew Jones)
Newsgroups: trial.rec.metalworking
Subject: Magic Markers instead of Layout Blue
Date: 5 Nov 92 15:32:04 GMT
Distribution: trial
Organization: CERFnet

Because I find layout blue a mess to deal with I posted for alternatives
and Margic Markers was recommended.

I have been using them for the last few months and I like them alot
and consider them to be an improvement over LB. I got the three pack
(red, blue, black) and I find red too hard to see and don't use it,
blue works great and the black one was dead, but I think it would work well.
I bought the thin tipped markers but I think the thick tipped ones would be 
better.  Overall I would reccommend thick tipped blue Magic Markers 
for best results.

Matthew Jones
jonesm@cerf.net

PS To whoever posted the suggestion thanks!
From: jonesm@nic.cerf.net (Matthew Jones)
Newsgroups: trial.rec.metalworking
Subject: Re: Steel Warpage
Date: 6 Nov 92 15:44:45 GMT
Distribution: trial
Organization: CERFnet

In article <1992Nov5.085956.15522@axion.bt.co.uk> djenkins@zaphod.axion.bt.co.uk writes:
>> In article <3630@news.cerf.net>, jonesm@nic.cerf.net (Matthew Jones) writes...
>>>In the finger treadle I am currently building, I fabricated a crankshaft
>>>out of CRS. The crankshaft has warped and does not "run" very well.

>Cast iron does have advantages, though, e.g. it does make a good bearing
>surface, and it is easy to machine with minimal distortion.  Its brittleness
>has to be taken into account.

A discussion of cast iron is required here.
First, where does one find cast iron?
Second it is my understanding that cast iron is a strong abrasive and therefore
will be very hard on the lathe. Like it will wear down the ways in the lathe.
Third what are the machining issues are involved with cast iron? Brittle?

Matthew Jones
jonesm@cerf.net
From: djenkins@axion.bt.co.uk (David Jenkins)
Newsgroups: trial.rec.metalworking
Subject: Re: Steel Warpage
Date: 10 Nov 92 08:16:21 GMT
Reply-To: djenkins@axion.bt.co.uk (David Jenkins)
Distribution: trial
Organization: British Telecom Research Labs


Ignoring cast iron for a while, I had a look at a few articles for model
engines and found out what their favourite materials were for cam- and
crankshafts.

As far as I can tell, in the UK the favourite stuff is mild steel,
preferably the grade known as EN8 or BS970/080M40.  According to my
reference book, 080M40 means "plain carbon steel supplied to specified
mechanical properties (as opposed to chemical analysis or hardening
ability), 0.40% carbon, 0.80% manganese." Note that this is not a
free-cutting grade.

Most articles stressed the need for normalising and making allowances
for distortion during machining.


Hope this helps...

 

David Jenkins

:Error #9851 * REALITY.SYS Corrupted: Re-boot universe? (Y/N/Q)
From: slefton@world.std.com (Scott A Lefton)
Newsgroups: trial.rec.metalworking
Subject: Re: Crafts Cooties
Date: 5 Nov 92 05:09:13 GMT
Distribution: trial,world
Organization: The World Public Access UNIX, Brookline, MA

Gary, I doubt that the Webster definition matters much to anyone else in
the metalworking group but you.  Most of the craftspeople that I know are
very educated,  and make a living ranging from decent to excellent from
their work.  Some cross the line between artist and craftsperson, and many
work well in more than one medium.  On a casual search of the newsgroups,
I suspect that "crafts" would be a more likely starting point than "metal".
Your information about the questionable benefits of hierarchical depths 
2 to 4 certainly doesn't point to any detriment here.

I have also hired people to do hand labor and work as machinists.  From 
ongoing experience with the New England employment scene, few if any of
the unemployed folks I've interviewed for jobs would define themselves
as a craftsperson right off the bat.  The folks laid off from the ship 
or automotive industries wouldn't.  

As for not associating with fiber artists, etc., are you at all aware
of the "woven metal" work done by some weavers who are also metalsmiths?
I've found that contact with crafts that I'm not "into" can still
enrich my own work.

Keep an open mind.
From: psyrobtw@ubvmsb.cc.buffalo.edu (Robert Weiss)
Newsgroups: trial.rec.metalworking
Subject: Re: Steel Warpage
Date: 5 Nov 92 02:29:00 GMT
Distribution: trial
Organization: University at Buffalo
News-Software: VAX/VMS VNEWS 1.41

In article <3630@news.cerf.net>, jonesm@nic.cerf.net (Matthew Jones) writes...
>In the finger treadle I am currently building, I fabricated a crankshaft
>out of CRS. The crankshaft has warped and does not "run" very well.
> 
>I asked some people at a local metal store (not my favorite but close
>to where I work) about this problem and they said I should use CromeMolySteel
>peened and heat treated. Yeah sure! Incedently this stuff would be special
>ordered and is hard to get in small sizes and is 4x the price of CRS...
> 
>The crankshaft is about 4" long by 3/8" * 5/8" and supports only one
>"cylinder". Is brass a good choice? Bronze? Bronze with some space age
>alloys? 
> 
>Are they stong enough will they warp?


Matthew,

	Just curious, do you have a bushing in the connecting rod?

	For something that is inherently stiff, and will machine well, 
and won't move, I would think that cast iron would work fine. 
Something close to a Meehanite would be ideal. A junkyard should have 
some shape that would come close.
	
	My next choice would be an air hardening tool steel. It won't 
deform that much went it is hardened. Something like A2 is cheap 
and readily available.

=============================
Robert Weiss
psyrobtw@ubvms.cc.buffalo.edu
From: djenkins@axion.bt.co.uk (David Jenkins)
Newsgroups: trial.rec.metalworking
Subject: Re: Steel Warpage
Date: 5 Nov 92 08:59:56 GMT
Reply-To: djenkins@zaphod.axion.bt.co.uk
Distribution: trial
Organization: British Telecom Labs

From article <Bx81K2.Esv@acsu.buffalo.edu>, by psyrobtw@ubvmsb.cc.buffalo.edu (Robert Weiss):
> In article <3630@news.cerf.net>, jonesm@nic.cerf.net (Matthew Jones) writes...
>>In the finger treadle I am currently building, I fabricated a crankshaft
>>out of CRS. The crankshaft has warped and does not "run" very well.
>> 
>>I asked some people at a local metal store (not my favorite but close
>>to where I work) about this problem and they said I should use CromeMolySteel
>>peened and heat treated. Yeah sure! Incedently this stuff would be special
>>ordered and is hard to get in small sizes and is 4x the price of CRS...
>> 

Alternatively...

Use your original choice of steel, but set it aside after rough-machining
for a while, or try annealling/normallising by heat treatment.  Many steels
deform when cut unless they are normallised first - and some still do after!

Many model engine designs in the past have used bright drawn mild steel very
successfully, as long as the stresses have been relieved, either before
machining or before the finishing cuts.

Cast iron does have advantages, though, e.g. it does make a good bearing
surface, and it is easy to machine with minimal distortion.  Its brittleness
has to be taken into account.


David Jenkins

:Error #9851 * REALITY.SYS Corrupted: Re-boot universe? (Y/N/Q)
From: gilbertl@aludra.usc.edu (Gilbert Man-Fai Lau)
Newsgroups: trial.soc.culture.italian
Subject: Marketing Research in Europe
Date: 11 Nov 1992 15:35:42 -0800
Organization: University of Southern California, Los Angeles, CA
NNTP-Posting-Host: aludra.usc.edu

Hi,
	My friend is working on a marketing research in Europe. I will be
very appreciated if any of you can answer the following questions? 

1. Does any chain-store like Blockbuster exists in Europe?

2. Do Europeans accept American idea and culture?

3. Do Europeans influenced by Americans?

4. How's the entertainment business in Europe compared to America?

5. How's laser disc selling in Europe? (little, moderate or great) If 
   possible, please give me some statistics?

6. How about video game rental business? Do European children like to play 
   video game as American children?

7. How often do you go to video stores or theaters in Europe?

Please reply to my email addr: glau@cory.berkeley.edu
Thanks in advance!!

Gilbert
From: gilbertl@aludra.usc.edu (Gilbert Man-Fai Lau)
Newsgroups: trial.soc.culture.czechoslovak
Subject: Marketing Research in Europe
Date: 11 Nov 1992 15:33:41 -0800
Organization: University of Southern California, Los Angeles, CA
NNTP-Posting-Host: aludra.usc.edu

Hi,
	My friend is working on a marketing research in Europe. I will be
very appreciated if any of you can answer the following questions? 

1. Does any chain-store like Blockbuster exists in Europe?

2. Do Europeans accept American idea and culture?

3. Do Europeans influenced by Americans?

4. How's the entertainment business in Europe compared to America?

5. How's laser disc selling in Europe? (little, moderate or great) If 
   possible, please give me some statistics?

6. How about video game rental business? Do European children like to play 
   video game as American children?

7. How often do you go to video stores or theaters in Europe?

Please reply to my email addr: glau@cory.berkeley.edu
Thanks in advance!!

Gilbert
Newsgroups: trial.test
From: salvav@aix.rpi.edu (Vito Salvaggio)
Subject: Re: what do you think this is?
Organization: Rensselaer Polytechnic Institute, Troy, NY
Date: Wed, 11 Nov 1992 21:08:19 GMT

This is a test.  This is only a test.
Had this been a real post you would have 
been informed.


Did the crtl-L work?


Later.

Newsgroups: trial.test
From: me@here
Subject: what do you think this is?
Organization: J. Random Misconfigured Site
Date: Wed, 11 Nov 1992 20:05:15 GMT
X-Posted-From: ubvmsb.cc.buffalo.edu
NNTP-Posting-Host: sol.ctr.columbia.edu

This is a test from me.
I'm at here.
I have to go no.w.
I hate it when I have to use that pesky control - h thingie.
bye.
Newsgroups: trial.test
From: wooga@woo
Subject: testing
X-Disclaimer: Nyx is a public access Unix system run by the University
	of Denver for the Denver community.  The University has neither
	control over nor responsibility for the opinions of users.
Organization: Nyx, Public Access Unix at U. of Denver Math/CS dept.
Date: Tue, 10 Nov 92 03:58:33 GMT
From: kubard@kuhub.cc.ukans.edu
Newsgroups: trial.talk.politics.peace
Subject: Where's the line?
Date: 9 Nov 92 16:45:43 CST
Organization: University of Kansas Academic Computing Services

Glenn,

Your points are well taken.  When one admits that violence is ok in situation
a, it is very difficult to say its not ok in situation b.  It is is, as you
stated, a big can of worms.  Personally, I think that violence is at the very
best, a last resort.  However, you will correctly point out to me that when
does one determine where that point of last resort is.  I don't know.  Until I
do, it will be very hard for me to argue from the point of view that its ok in
certain situations.

BTW, about this voting thing: it seems to me that voting isn't coercian, but 
rather the only time the people really have a right to say something about how
their community should be run.  Of cousre, I'm an anarcho-syndicalist and not
a full blown anarchist.

							Peace,
							John Phythyon, Jr.
From: ygu@uoft02.utoledo.edu
Newsgroups: oh.general
Subject: WANTED: one-way air ticket   PDX,OR -> TOL,OH
Date: 13 Nov 92 04:27:42 EST
Followup-To: orst.forsale
Keywords: PORTLAND --> TOLEDO
Distribution: usa
Organization: University of Toledo, Computer Services


Hi,
I need a one-way airline ticket from Portland, Oregon to Toledo, Ohio
at about mid-December.
If you have one, make an offer.
Please contact me via email.
Thanx in advance.
---------------------------------------------------------------------
ygu@uoft02.utoledo.edu
---------------------------------------------------------------------

Newsgroups: oh.general,osu.general
From: jrobinso@magnus.acs.ohio-state.edu (Judith L Robinson)
Subject: ACM Chapter Meeting
Organization: The Ohio State University
Distribution: oh
Date: Fri, 6 Nov 1992 22:12:35 GMT

NOVEMBER CHAPTER MEETING - Thursday, November 19 - 6:00 pm

Location:      Jai Lai Prime Rib Restaurant
               1421 Olentangy River Road

Topic:         Computer Networking and Future Direction at Work and at Home

Times:         6:00 pm - Social Hour
               7:00 pm - Dinner
               8:00 pm - Speaker, Jerry Martin

Reservations:  Call 365-4406

Jerry Martin is leader of the Network Information Center at Academic Computing 
Services at The Ohio State University.  Come, catch up with the Network 
Explosion!
From: fannin@news.cis.ohio-state.edu (elizabeth a fannin)
Newsgroups: osu.general,oh.general
Subject: native center fire
Date: 10 Nov 92 21:45:44 GMT
Organization: The Ohio State University Department of Computer and Information Science

i tried to post this on alt.native as well, but have lost posting capacity
there.   if anyone can post it for me on alt.native, and is willing, please
do!  

the native american center here in columbus, ohio, has burned, evidently the
result of a furnace fire.  this center which, in addition to other things,
was a resource center and provided a lot of free help to those in need, now
needs primarily financial help itself:  firstly, they need a new
headquarters.  anyone interested in giving a hand may contact selma walker,
the director, at 614-497-9703.  that is an all-day number.

my apologies if this post offends anyone, or if it is incorrectly posted.  i
wanted to know how to help, and thought others might.

thank you.

--liz fannin
Newsgroups: oh.test
From: moeller@unicorn.cis.ohio-state.edu (torsten moeller)
Subject: test
Organization: The Ohio State University Dept. of Computer and Info. Science
Distribution: oh
Date: Thu, 5 Nov 1992 21:21:43 GMT


dis iss'n test
Newsgroups: oh.test
From: moeller@unicorn.cis.ohio-state.edu (torsten moeller)
Subject: test
Organization: The Ohio State University Dept. of Computer and Info. Science
Distribution: oh
Date: Thu, 5 Nov 1992 22:37:34 GMT


test, again
-- 
Hallo, das is bla"s 'n test.
Newsgroups: oh.cast
From: sdw@meaddata.com (Stephen Williams)
Subject: Re: INN experiences ?
Organization: Mead Data Central, Dayton OH
Date: Tue, 10 Nov 1992 18:25:04 GMT

doug@cc.ysu.edu (Doug Sewell) writes:
: We might well be buying a new Sun (32MB/1.3GB IPC) to run usenet on, to
: replace our current and failing NCR Tower.  My question is: should I in-
: stall C-News/NNTP/nntplink, or INN ?  Since I'm starting from scratch,
: this is the ideal time to change if I'm going to.  I will be able to have
: both machines up the same time, and both machines are dedicated to news.
: 
: My environment:
: 
: Three "busy" newsfeeds half-a-dozen trivial ones.  All of my newsfeeds have
...
: like C-News and NNTP did when the change to relative pathnames came.  I
: also like the synchronous posting, and the I-O improvements.
: 
: Comments ?
I love it.  I also have added zoo archiving of online-articles to cut
inodes and space usage.  My changes are not fully debugged however.
Watch comp.news.nntp....

sdw
--
Stephen D. Williams  Local Internet Gateway Co.; SDW Systems 513 496-5223APager
LIG dev./sales       Internet: sdw@world.std.com CIS 76244.210@compuserve.com
OO R&D Source Dist.  By Horse: 10028 Village Tree Ct., Miamisburg, OH 45342
GNU Support          ICBM: 39 34N 85 15W I love it when a plan comes together
From: uucpmap@rutgers.rutgers.edu (UUCP Mapping Project)
Newsgroups: can.uucp.maps
Subject: UUCP map for u.can.bc.2
Date: 8 Nov 92 11:04:27 GMT
Expires: 23 Dec 92 11:04:25 GMT
Supersedes: <Oct.8.07.26.50.1992.12513@cs.toronto.edu>

:	This is a shell archive.
:	Remove everything above this line and
:	run the following text with /bin/sh to create:
:	u.can.bc.2
: This archive created: Sun Nov  8 06:04:11 1992
echo shar: extracting u.can.bc.2
cat << 'SHAR_EOF' > u.can.bc.2
file {u.can.bc.2}
#	u.can.bc.2 : last updated Sun Mar  8 13:21:45 EST 1992
#
# Empty file.  A reorganization of the u.can.* files resulted in
# the number of u.can.bc files decreasing from 2 to 1.
#
# All map entries that were automatically generated from CA domain
# registration forms are now in u.can.?. - utai!path
SHAR_EOF
:	End of shell archive
exit 0