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Date

Re: Flywheel for Stirling engine

 

The "best" way will depend on the operator's preference! If there's a
machined surface anywhere on the flywheel you received, it's usually
handier to start by using it as a reference for subsequent machining.
If it's rough all over & you've got a face plate, start by mounting it
on the face plate with the shaft hole reasonably centered & the edges
roughly parallel to the face plate. Depending on how rough the casting
is, you may want to do a little shimming to minimize the amount of
metal to remove. Try to visualize the finished flywheel inside the
casting.

While it's on the face plate, bore the center hole & face the exposed
surface. Next step is to reverse it & face the other surface - since
there's now a machined surface against the face plate, the other
surface will be parallel. Final step is to turn the periphery.

If you don't have a face plate, you can do it by using a drill press to
make an accurate center hole, then use that hole to mount it for
subsequent machining.

Roy

--- In 7x12minilathe@..., "dabmetal01" <dabmetal01@...>
wrote:

I am a newbie with the lathe and started with a Stirling engine.
What
would be the best order of operations for the flywheel and how do you
make both sides parallel? Any advice would be appreaciated.


Re: First prototype of the laser edge/center finder done!

 

If nothing else, the laser pointers make superb cat toys! It's even
more fun with 2 lasers & multiple cats;-)

Roy
--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>
wrote:

On Monday 16 April 2007, Ian Foster wrote:
G'day John, Vikki, Roy Derek et al.
I think this thread should come to an end before we feel the
ire of those who would want to "sit back and sift".

Even though discussion has drifted away from the topic it has
generated a healthy forum on an engineeering subject and
perhaps broadened the understanding of some. I know others
will "stick tp their guns".
Hi Ian es all,

I've been kind of busy for the past couple days but reading the
mail as I can.

With the one from MM coming, truthfully I don't know if I will
consider proceeding with this or not.

It has been fun, but there is limited $$$ involved :-(. I'd love
to see what the sapphire balls would do though and experimenting
with different filters / waveguides.

I am thinking that the laser pointers are just too inconsistent
quality wise, there may be some answer to that but the only
other options I have seen are ungodly expensive.

And, as noted, I spent more than the cost of the MM unit on cheap
laser pointers alone at this point.

Perhaps it could just be a hobby exploration over time, who
knows?

Thanks to everyone who provided feedback and food for thought!

Take care, Vikki.
--
Victoria Welch, WV9K/7
"Being Muslim is not a religion. Islam is an ideology that is
fixated on the death or conversion of everyone. It isn't
intolerance or bigotry to reject, despise or attempt to destroy
such a contemptible way of thinking." --Mormon Doc


Re: First prototype of the laser edge/center finder done!

 

You could say, "It's been enlightening!"

Part of my thinking was to post a link to Small Parts; they carry a
lot of hard to find, nifty items. As a satisfied customer, it's in
my best interest to keep them viable.

Roy

--- In 7x12minilathe@..., "born4something" <ajs@...>
wrote:

Hi Roy,

Yeah, but once Vikki's commercial number from MM arrives I think
she'll find new games to play. Vikki's had the fun of sussing out
how far you can push a $1 laser and it's been an interesting
thread. :-)

John


--- In 7x12minilathe@..., "roylowenthal"
<roylowenthal@> wrote:

Small Parts has them:



Roy


Flywheel for Stirling engine

 

I am a newbie with the lathe and started with a Stirling engine. What
would be the best order of operations for the flywheel and how do you
make both sides parallel? Any advice would be appreaciated.


Re: First prototype of the laser edge/center finder done!

Victoria Welch
 

On Monday 16 April 2007, Ian Foster wrote:
G'day John, Vikki, Roy Derek et al.
I think this thread should come to an end before we feel the
ire of those who would want to "sit back and sift".

Even though discussion has drifted away from the topic it has
generated a healthy forum on an engineeering subject and
perhaps broadened the understanding of some. I know others
will "stick tp their guns".
Hi Ian es all,

I've been kind of busy for the past couple days but reading the
mail as I can.

With the one from MM coming, truthfully I don't know if I will
consider proceeding with this or not.

It has been fun, but there is limited $$$ involved :-(. I'd love
to see what the sapphire balls would do though and experimenting
with different filters / waveguides.

I am thinking that the laser pointers are just too inconsistent
quality wise, there may be some answer to that but the only
other options I have seen are ungodly expensive.

And, as noted, I spent more than the cost of the MM unit on cheap
laser pointers alone at this point.

Perhaps it could just be a hobby exploration over time, who
knows?

Thanks to everyone who provided feedback and food for thought!

Take care, Vikki.
--
Victoria Welch, WV9K/7
"Being Muslim is not a religion. Islam is an ideology that is
fixated on the death or conversion of everyone. It isn't
intolerance or bigotry to reject, despise or attempt to destroy
such a contemptible way of thinking." --Mormon Doc


Re: First prototype of the laser edge/center finder done!

 

G'day John, Vikki, Roy Derek et al.
I think this thread should come to an end before we feel the ire of
those who would want to "sit back and sift".

Even though discussion has drifted away from the topic it has generated
a healthy forum on an engineeering subject and perhaps broadened the
understanding of some. I know others will "stick tp their guns".

One good turn deserves another.
Regards,
Ian


Cummins Lathe for sale w/ extras

 

If classified aren't allowed in this group, Can the administrators
please delete this.

I joined this group a while back when I bought the lathe and learned
a lot. My hobby has progressed to making parts larger than the 7x12
can deal with....and I've had to get pretty creative with
attachments and tooling trying to work on a hub for my racecar that
was 6.4" in diameter. Anyway, I just bought a new Atlas 10" lathe,
and I no longer need the mini-lathe. So its up for sale. Here's
the list of stuff I've got.

Cummins 7X12 lathe
Seig DRO setup
A bag of spare gears, change gears, belt, etc...
4" 4 jaw chuck
Quick Change Tool Post with tool holders
Assorted tooling
I don't have any tailstock centers to include but I will include a
tailstock chuck
Steady rest & carriage rest
Faceplate


I haven't used it much lately but it needs the typical maintanence:
lube the gears, adjust the gibs, etc.... but it works great. Please
email me with offers or questions, as I don't quite know what the
whole package is worth.

lbhsbz@...


Re: First prototype of the laser edge/center finder done!

 

Hi,

Well I'm not a physicist although I am an engineer of the electronic
variety.

My thinking is that the laser wavelength is around 600nm from memory
and will readily detect edges of quarter wave. That's probably an
order of magnitude finer than the surface finish on most machined
surfaces so most surfaces would appear to be a myrriad of "edges". I
think these things are simply using the fact that laser beams don't
spread much and are the cheapest source of a narrow beam. Also,
these LED lasers are not as spectrally pure as their more expensive
cousins which would muddy any interference pattern technique.

John


--- In 7x12minilathe@..., "tbarker_xxx" <tbarker@...>
wrote:

There seems to be some engineering/physicists following this
thread
so maybe somebody can answer a question I've had about laser edge
locators. I understand that they are just producing a small spot
and
depending upon the user's eye to do the alignment, but that does
not
seem to take full advantage of the characteristics of a laser.
Why
are these units not taking the reflected image and splitting it so
that they can form an interference pattern from the two sides of
the
beam? Since the travel distance as the beam moves onto an edge
would
be different the split beam should show very noticable
interference
(assuming of course that the difference in travel distance is not
a
multiple of the wavelenght and that seems unlikely).

To me it seems like that approach would lead to a highly
repeatable
precision-edge- detection. I've thought a bit about what optics
might be required and it does not seem like it would be too hard
to
mass produce, although it is probable something that would a bit
hard
to prototype in a home shop.

--- In 7x12minilathe@..., Victoria Welch <wrlabs@>
wrote:

On Saturday 14 April 2007, born4something wrote:
--- In 7x12minilathe@..., Victoria Welch <wrlabs@>

wrote:
Please don't laugh too hard :).
Not laughing Vikki. Handles are seriously useful from an OH&S
viewpoint as well as comfort. But make sure they fit solidly.
Just
imagine filing energetically and dislodging a handle such that
the
tang is driven up inside your wrist on the next power stroke.
Similarly when using in the lathe and something grabs
unexpectedly.
With that in mind, I need a few more handles and to refit some
more
securely!
I drilled out the shank in two steps, deep for the thin end and
another
at the top for the big end near the file itself. I don't know
if
that
helped or that cheap wood is just so springy that it comes down
on
the
shank tightly?!? Short of pounding it off with a hammer of some
sort,
I think it is there to stay.

Just put it over the file shank and popped it down on the
workbench.
Maybe there is a place for crap wood ;-)?

Take care, Vikki (pleased not be be laughed at :-).
--
Victoria Welch, WV9K/7
If you think education is expensive, try ignorance" --Andy
McIntyre
and
Derek Bok


Re: Thread cutting mystery...

 

John,

You and Roy hit the nail on the head. I'm cutting an approximation of a 1.5mm metric
thread...something I've never done before. I thought that engaging the half nuts at the
same number on the threading dial every time would do the trick! My gear setup is 40, 50,
65,55 for an actual TPI of 16.923.

I'll try again without disengaging the halfnuts (that's gonna be tricky!)

Thanks again for the help fellas.

Jim
Dana Point, CA

--- In 7x12minilathe@..., "born4something" <ajs@...> wrote:

Hi Jim,

I'd try keeping the half-nuts engaged and reversing up - as opposed
to using the threading dial. If the problem persists you must have
some sort of slippage (on keyed gears???). Are you doing non-native
threads (metric on an imperial lathe or vice verca)?

John


--- In 7x12minilathe@..., "kettletrigger"
<kettletrigger@> wrote:

It's been a couple of years since I've done any screwcutting on my
lathe, but it always went
fine back then. Today I learned the hard lesson of running a test
piece even though I thought
it would work fine¨Cruined a nice part in the process.

Here's a photo of the problem I'm having:


f

That's a 1.5" diameter piece of aluminum with five successive test
cuts. I made no changes
whatsoever to the top slide or cross slide (other than retracting
it for clearance then setting
back to "zero") and made sure to catch the thread dial on "1" for
every pass. Those five
passes should have all been in the same groove, but it's
offsetting a couple of thous each
pass. It's as if something in the gear train is slipping but I've
checked everything a bunch of
times. I'm really stumped on this one, any ideas would be
appreciated.

Jim
Dana Point, CA


Re: First prototype of the laser edge/center finder done!

 

Hi Roy,

Yeah, but once Vikki's commercial number from MM arrives I think
she'll find new games to play. Vikki's had the fun of sussing out
how far you can push a $1 laser and it's been an interesting
thread. :-)

John


--- In 7x12minilathe@..., "roylowenthal"
<roylowenthal@...> wrote:

Small Parts has them:



Roy

--- In 7x12minilathe@..., Victoria Welch <wrlabs@>
wrote:

On Saturday 14 April 2007, Malcolm Parker-Lisberg wrote:
The saphire ball bearing makes an excellent lens for a diode
laser.

I suppose so, but outside of my roomie and her bead mill I have
no
idea
were to even start looking for something like that.

Would probably also add considerable value to a $1 laser pointer
too :-)!

Thanks & take care, Vikki.
--
Victoria Welch, WV9K/7
"Experience should teach us to be most on our guard to protect
liberty
when the government's purposes are beneficient . . . the
greatest
dangers to liberty lurk in insidious encroachment by men of
zeal,
well
meaning but without understanding." -- Justice Louis Brandeis


Re: Thread cutting mystery...

 

Hi Jim,

I'd try keeping the half-nuts engaged and reversing up - as opposed
to using the threading dial. If the problem persists you must have
some sort of slippage (on keyed gears???). Are you doing non-native
threads (metric on an imperial lathe or vice verca)?

John


--- In 7x12minilathe@..., "kettletrigger"
<kettletrigger@...> wrote:

It's been a couple of years since I've done any screwcutting on my
lathe, but it always went
fine back then. Today I learned the hard lesson of running a test
piece even though I thought
it would work fine¨Cruined a nice part in the process.

Here's a photo of the problem I'm having:


f

That's a 1.5" diameter piece of aluminum with five successive test
cuts. I made no changes
whatsoever to the top slide or cross slide (other than retracting
it for clearance then setting
back to "zero") and made sure to catch the thread dial on "1" for
every pass. Those five
passes should have all been in the same groove, but it's
offsetting a couple of thous each
pass. It's as if something in the gear train is slipping but I've
checked everything a bunch of
times. I'm really stumped on this one, any ideas would be
appreciated.

Jim
Dana Point, CA


Re: First prototype of the laser edge/center finder done!

 

Small Parts has them:



Roy

--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>
wrote:

On Saturday 14 April 2007, Malcolm Parker-Lisberg wrote:
The saphire ball bearing makes an excellent lens for a diode
laser.

I suppose so, but outside of my roomie and her bead mill I have no
idea
were to even start looking for something like that.

Would probably also add considerable value to a $1 laser pointer
too :-)!

Thanks & take care, Vikki.
--
Victoria Welch, WV9K/7
"Experience should teach us to be most on our guard to protect
liberty
when the government's purposes are beneficient . . . the greatest
dangers to liberty lurk in insidious encroachment by men of zeal,
well
meaning but without understanding." -- Justice Louis Brandeis


Re: Thread cutting mystery...

 

What thread pitch are you trying to cut?

The threading dial only aligns for multiples of 1/2 tpi; if you're
doing a metric approximation (with an SAE leadscrew) you'll have to
keep the half-nuts engaged during the entire process.

Roy

--- In 7x12minilathe@..., "kettletrigger"
<kettletrigger@...> wrote:

It's been a couple of years since I've done any screwcutting on my
lathe, but it always went
fine back then. Today I learned the hard lesson of running a test
piece even though I thought
it would work fine¨Cruined a nice part in the process.

Here's a photo of the problem I'm having:



That's a 1.5" diameter piece of aluminum with five successive test
cuts. I made no changes
whatsoever to the top slide or cross slide (other than retracting
it for clearance then setting
back to "zero") and made sure to catch the thread dial on "1" for
every pass. Those five
passes should have all been in the same groove, but it's offsetting
a couple of thous each
pass. It's as if something in the gear train is slipping but I've
checked everything a bunch of
times. I'm really stumped on this one, any ideas would be
appreciated.

Jim
Dana Point, CA


Re: Thread cutting mystery...

 

--- In 7x12minilathe@..., "kettletrigger"
<kettletrigger@...> wrote:

It's been a couple of years since I've done any screwcutting on my
lathe, but it always went
fine back then. Today I learned the hard lesson of running a test
piece even though I thought
it would work fine¨Cruined a nice part in the process.

Here's a photo of the problem I'm having:



That's a 1.5" diameter piece of aluminum with five successive test
cuts. I made no changes
whatsoever to the top slide or cross slide (other than retracting
it for clearance then setting
back to "zero") and made sure to catch the thread dial on "1" for
every pass. Those five
passes should have all been in the same groove, but it's offsetting
a couple of thous each
pass. It's as if something in the gear train is slipping but I've
checked everything a bunch of
times. I'm really stumped on this one, any ideas would be
appreciated.

Jim
Dana Point, CA
jim;
have you checked the engagement of the half nuts? it looks like the
cut is wandering within the same groove. just one idea.
don


Re: Thread cutting mystery...

 

If nothing is slipping, it may mean you have the gears set up for
metric threads.

How many tpi were you trying to cut?

How many tpi did it actually cut, as measured with a thread gauge (no
estimating here...)?

What was the gear setup? Is the thread indicator gear engaged properly?

John



--- In 7x12minilathe@..., "kettletrigger"
<kettletrigger@...> wrote:

It's been a couple of years since I've done any screwcutting on my
lathe, but it always went
fine back then. Today I learned the hard lesson of running a test
piece even though I thought
it would work fine¨Cruined a nice part in the process.

Here's a photo of the problem I'm having:



That's a 1.5" diameter piece of aluminum with five successive test
cuts. I made no changes
whatsoever to the top slide or cross slide (other than retracting it
for clearance then setting
back to "zero") and made sure to catch the thread dial on "1" for
every pass. Those five
passes should have all been in the same groove, but it's offsetting
a couple of thous each
pass. It's as if something in the gear train is slipping but I've
checked everything a bunch of
times. I'm really stumped on this one, any ideas would be appreciated.

Jim
Dana Point, CA


Thread cutting mystery...

 

It's been a couple of years since I've done any screwcutting on my lathe, but it always went
fine back then. Today I learned the hard lesson of running a test piece even though I thought
it would work fine¨Cruined a nice part in the process.

Here's a photo of the problem I'm having:



That's a 1.5" diameter piece of aluminum with five successive test cuts. I made no changes
whatsoever to the top slide or cross slide (other than retracting it for clearance then setting
back to "zero") and made sure to catch the thread dial on "1" for every pass. Those five
passes should have all been in the same groove, but it's offsetting a couple of thous each
pass. It's as if something in the gear train is slipping but I've checked everything a bunch of
times. I'm really stumped on this one, any ideas would be appreciated.

Jim
Dana Point, CA


7x12 cnc lathe on ebay

hodarthestrange
 

Item# 140108076785
I just listed my little 7x12 Homier. If you need one take a look. Lots
of pictures.
Need money to finish my 8x14.

Donny


Re: Database of past messages

 

THANK YOU TONY !!!
I most always sit back and sift for useful info. and much can be learned in doing so. The topic on the copyrights was getting foolish and wasting space that could be used for intelligent dialog.
Doug

Tony Smith <ajsmith@...> wrote:
What a lot of hoo-ha about nothing, as the saying goes. 99.99% of the
message on these boards really aren't worth saving, including this entire
thread.

Having a decent search interface, or an index, or perhaps a list of 'best
of' threads would be nice. However, if you were going to do that, you might
as well do what other have done, and call it a book.

As far as who owns copyright, you do for your messages. By posting you
grant Yahoo the right to publish them (with no royalties) or do whatever
they like until you or they delete them. Yahoo doesn't really care (much)
about a 3rd party setting up a database, so long as they don't pretend to be
Yahoo, claim affiliation etc. The copyright & TOS (no, not Star Trek) pages
are linked off the main groups page.

If a poster has a problem with the 3rd party database, then it's between
them. Personally, if you feel that your messages are so valuable that you'd
be willing to fire off C&D letters or start lawsuits, perhaps you should
stop posting. 'rroll99' has exactly 3 messages in my inbox, the one
complaining about copyright, one asking for a book suggestion, and one
saying thanks re the book. Not worth getting excited about. Perhaps I can
sue all the other members of this group for having my copyrighted messages
on their computer systems. You can all sue me in return.

Besides, the whole point is spreading knowledge, and anything on this lists
would be fairly well known anyway. I doubt anything new & earthshattering
would appear on a message board that is mainly "I'm a newbie, how do I..."
posts. There a few websites that have cherrypicked lists for useful
messages, see for a example. It just
mangles the emails a bit.

Look at all the Usenet stuff, it eventually all ended up on Google. Useful?
Maybe.

Go write a book instead. Taking from many is called research, isn't it?
Plus you'll get a pat on the back, and not (as many) accusations of
copyright theft.

Tony

-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...] On Behalf Of Druid Noibn
Sent: Monday, 16 April 2007 12:39 AM
To: 7x12minilathe@...
Subject: RE: [7x12minilathe] Re: Database of past messages

Hi Patrice L.,

Good points and well-taken. I am pleased to hear that you
removed the "copyright" from your site - however, as with the
best of intentions, this generates another problem and a
violation of the copyright law - your previous posting of
"copyright" was a also a violation, called theft.

The very issuance of the instrument is a copyright; however
the courts will not hear a case unless it is registered. By
not citing the copyright holder or the original author(s) you
are placing in public domain work in which you might not have
the authority to do so.

Next, has Yahoo released any and all copyrights to the
moderators and/or the original authors save for the logo and
possibly the "look and feel?"

Alternate view - The authors, by posting have gifted their
work as "public domain" in which case the public at-large
have full use of it. However, it does not grant the copyright.

As soon as any commercial benefit is made, the situation is
complicated. Commercial use is sometimes a fine hair to
split under the "Fair Use" principle. Most often restricted
to educational institutions - If one were to copy a document
for a class, a reasonable copying fee is permitted. A charge
greater than this is deemed commercial and would be seen as
unfair and potentially theft.

So while creating a compendium of postings is one of good
intentions, it does have ramifications due to the
ne're-do-wells who benefited from the work of others.

If you elect to otherwise post materials presented by
others, 1) permission is required and 2) full citation to the
copyright owner (saving this, the original author) must be
stated. Next disclosing information from a "members-only"
group (one needs to be a member to post) is not a good idea.

Your good intentions are appreciated, but your decision not
to proceed is likely the best.

Take care,
DBN


Patrice L <strempe4@...> wrote: Let me
address what I can.

1) I will add a reference to the Yahoo group. Not sure why I
did not do it but I see how that may be a good idea.
2) I removed the copyright at the bottom of these pages (a
couple of days ago actually). I had it on all my website.
Never thought to copyrights those for myself.
3) I've removed much of the identification as well as emails
for fear of revealing too much personal information.
4) I've added the adds recently to see if this was something
that could generate revenue to help with the cost of website
and to eventually upgrade so that I could add pictures on there.

Anyway, I am telling you that I wanted to do this to give
back, having received lots of help myself. But you don't know
me and I have no way to prove it to you or others.

I never had anything but good words from the Southbend group
and thought it would be a good idea. Guess not. SO don't
worry, I won't make it.

Patrice

-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]
On Behalf Of rroll99
Sent: Saturday, April 14, 2007 6:27 PM
To: 7x12minilathe@...
Subject: [7x12minilathe] Re: Database of past messages

I'm sorry, but I have to object.

What EXACTLY are you seeking permission to do?

I don't know what copyrights we give up to Yahoo Groups when
we post here, but I wish to retain any rights that I still
have and I don't want anything that I write on your web site.

I wouldn't care as much if you clearly identified on your web
site that the source of your content is the South Bend Lathe
Group, but you haven't done that. There isn't even a link to
the group. You've also stripped almost all information that
could identify the authors of the messages. And you've
prominently displayed your own copyright notices, which imply
that you own the copyrights to stuff that you don't have the
right to copyright.

Finally, you're displaying ads on your site, which means
you've at least considered trying to make money from other
people's writing.

Your web site also "cluttered up" a Google search that I did
the other day with multiple hits that were basically useless.
The answer that I was looking for might have been somewhere
on your site but it would have been difficult to find because
your "database" is more about quantity than quality. Quite
frankly, it's not very much of an improvement over the
group's built-in search function.

If you're wondering why this is an issue with me, it's
because I spent twelve years operating a web site/BBS as a
free public service to promote general aviation, and that
experience was ruined by those who felt that they could take
my work without my permission or without giving me credit as
the source.

I think that if you want to put what you learn here on your
web site, then you need to write it in your own words.

--- In 7x12minilathe@..., "borenson444"
<strempe4@...> wrote:

Hi

I am a Southbend lathe owner that created a database of
past messages
for the Southbend groups a while ago. Since the resource
seems to be
useful, I thought I'd maybe try and add one or two new
ones. Metalwork
being my hobby, this group seems interesting.

So I am asking permission from the administrator as well as from
members.

I hope that this message will be moderated to see if it's ok as I
would not want to post something I am not supposed to.

Thanks for your time.

Patrice





---------------------------------
Ahhh...imagining that irresistible "new car" smell?
Check outnew cars at Yahoo! Autos.


Re: Database of past messages

 

Patrice,

I think Druid has put to words what I believe as well. As for the
search engine on this list, it is lacking but it does as good as can
be expected on a free for all site like this. I see the problem as an
organization problem.

I don't see that we have an index to help newcomers and to help the
long timers. Newcomers always ask the same quetions over and over, ME
INCLUDED. And it is difficult for anyone to find a thread that they
remember is on here somewhere that had the information they NOW need.
This site is no different in that respect than other yahoo groups.

As an alternative Patrice, maybe putting together a useful index that
has hyperlinks back to this list would be as useful as anything. To
get to the meat of the info.(the thread with the actual discussion)
the user STILL has to be a member here. A very comprehensive Index
and/or table of contents would be very useful, although maybe
difficult to BUILD as well as MAINTAIN. As 'designated users' see a
thread that might be a good reference, they can add a link to it from
the TOC or Index. When general users have questions, they could first
refer to the TOC/Index to do their searching for key words. New users
could be directed to existing 'beginnerish' threads to answer their
questions when appropriate.

There's LOTS of reference information on this site. As I catch
threads of possible future interest, I save a link to my palm pilot.
On some, I copy the content directly and usually include a reference
to the thread it came from in case I need more information. This also
helps ME when I'm out in the workshop away from the computer.

My 2c worth. Sorry, I'm a database programmer, I just think this way.

Rance


--- In 7x12minilathe@..., Druid Noibn <druid_noibn@...>
wrote:

Hi Patrice L.,

Good points and well-taken. I am pleased to hear that you
removed the "copyright" from your site - however, as with the best of
intentions, this generates another problem and a violation of the
copyright law - your previous posting of "copyright" was a also a
violation, called theft.

The very issuance of the instrument is a copyright; however the
courts will not hear a case unless it is registered. By not citing
the copyright holder or the original author(s) you are placing in
public domain work in which you might not have the authority to do
so.

Next, has Yahoo released any and all copyrights to the moderators
and/or the original authors save for the logo and possibly the "look
and feel?"

Alternate view - The authors, by posting have gifted their work
as "public domain" in which case the public at-large have full use of
it. However, it does not grant the copyright.

As soon as any commercial benefit is made, the situation is
complicated. Commercial use is sometimes a fine hair to split under
the "Fair Use" principle. Most often restricted to educational
institutions - If one were to copy a document for a class, a
reasonable copying fee is permitted. A charge greater than this is
deemed commercial and would be seen as unfair and potentially theft.

So while creating a compendium of postings is one of good
intentions, it does have ramifications due to the ne're-do-wells who
benefited from the work of others.

If you elect to otherwise post materials presented by others, 1)
permission is required and 2) full citation to the copyright owner
(saving this, the original author) must be stated. Next disclosing
information from a "members-only" group (one needs to be a member to
post) is not a good idea.

Your good intentions are appreciated, but your decision not to
proceed is likely the best.

Take care,
DBN


Re: Database of past messages

Clint D
 

OK guys, its time to put this topic to rest. No need for any more comments.
I as a moderator dont have a problem with any kind of info put out on
the net as long as its a benefit to all.

Personally, I dont think the creator of website in question had any
malice intent.

So, lets put this to rest now before the group owner gets upset and
involved.

to many other important topics going on for this type of OT

Clint


Tony Smith wrote:

What a lot of hoo-ha about nothing, as the saying goes. 99.99% of the
message on these boards really aren't worth saving, including this entire
thread.

Having a decent search interface, or an index, or perhaps a list of 'best
of' threads would be nice. However, if you were going to do that, you might
as well do what other have done, and call it a book.

As far as who owns copyright, you do for your messages. By posting you
grant Yahoo the right to publish them (with no royalties) or do whatever
they like until you or they delete them. Yahoo doesn't really care (much)
about a 3rd party setting up a database, so long as they don't pretend to be
Yahoo, claim affiliation etc. The copyright & TOS (no, not Star Trek) pages
are linked off the main groups page.

If a poster has a problem with the 3rd party database, then it's between
them. Personally, if you feel that your messages are so valuable that you'd
be willing to fire off C&D letters or start lawsuits, perhaps you should
stop posting. 'rroll99' has exactly 3 messages in my inbox, the one
complaining about copyright, one asking for a book suggestion, and one
saying thanks re the book. Not worth getting excited about. Perhaps I can
sue all the other members of this group for having my copyrighted messages
on their computer systems. You can all sue me in return.

Besides, the whole point is spreading knowledge, and anything on this lists
would be fairly well known anyway. I doubt anything new & earthshattering
would appear on a message board that is mainly "I'm a newbie, how do I..."
posts. There a few websites that have cherrypicked lists for useful
messages, see for a example. It just
mangles the emails a bit.

Look at all the Usenet stuff, it eventually all ended up on Google. Useful?
Maybe.

Go write a book instead. Taking from many is called research, isn't it?
Plus you'll get a pat on the back, and not (as many) accusations of
copyright theft.

Tony



-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...] On Behalf Of Druid Noibn
Sent: Monday, 16 April 2007 12:39 AM
To: 7x12minilathe@...
Subject: RE: [7x12minilathe] Re: Database of past messages

Hi Patrice L.,

Good points and well-taken. I am pleased to hear that you
removed the "copyright" from your site - however, as with the
best of intentions, this generates another problem and a
violation of the copyright law - your previous posting of
"copyright" was a also a violation, called theft.

The very issuance of the instrument is a copyright; however
the courts will not hear a case unless it is registered. By
not citing the copyright holder or the original author(s) you
are placing in public domain work in which you might not have
the authority to do so.

Next, has Yahoo released any and all copyrights to the
moderators and/or the original authors save for the logo and
possibly the "look and feel?"

Alternate view - The authors, by posting have gifted their
work as "public domain" in which case the public at-large
have full use of it. However, it does not grant the copyright.

As soon as any commercial benefit is made, the situation is
complicated. Commercial use is sometimes a fine hair to
split under the "Fair Use" principle. Most often restricted
to educational institutions - If one were to copy a document
for a class, a reasonable copying fee is permitted. A charge
greater than this is deemed commercial and would be seen as
unfair and potentially theft.

So while creating a compendium of postings is one of good
intentions, it does have ramifications due to the
ne're-do-wells who benefited from the work of others.

If you elect to otherwise post materials presented by
others, 1) permission is required and 2) full citation to the
copyright owner (saving this, the original author) must be
stated. Next disclosing information from a "members-only"
group (one needs to be a member to post) is not a good idea.

Your good intentions are appreciated, but your decision not
to proceed is likely the best.

Take care,
DBN


Patrice L <strempe4@...> wrote: Let me
address what I can.

1) I will add a reference to the Yahoo group. Not sure why I
did not do it but I see how that may be a good idea.
2) I removed the copyright at the bottom of these pages (a
couple of days ago actually). I had it on all my website.
Never thought to copyrights those for myself.
3) I've removed much of the identification as well as emails
for fear of revealing too much personal information.
4) I've added the adds recently to see if this was something
that could generate revenue to help with the cost of website
and to eventually upgrade so that I could add pictures on there.

Anyway, I am telling you that I wanted to do this to give
back, having received lots of help myself. But you don't know
me and I have no way to prove it to you or others.

I never had anything but good words from the Southbend group
and thought it would be a good idea. Guess not. SO don't
worry, I won't make it.

Patrice

-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]
On Behalf Of rroll99
Sent: Saturday, April 14, 2007 6:27 PM
To: 7x12minilathe@...
Subject: [7x12minilathe] Re: Database of past messages

I'm sorry, but I have to object.

What EXACTLY are you seeking permission to do?

I don't know what copyrights we give up to Yahoo Groups when
we post here, but I wish to retain any rights that I still
have and I don't want anything that I write on your web site.

I wouldn't care as much if you clearly identified on your web
site that the source of your content is the South Bend Lathe
Group, but you haven't done that. There isn't even a link to
the group. You've also stripped almost all information that
could identify the authors of the messages. And you've
prominently displayed your own copyright notices, which imply
that you own the copyrights to stuff that you don't have the
right to copyright.

Finally, you're displaying ads on your site, which means
you've at least considered trying to make money from other
people's writing.

Your web site also "cluttered up" a Google search that I did
the other day with multiple hits that were basically useless.
The answer that I was looking for might have been somewhere
on your site but it would have been difficult to find because
your "database" is more about quantity than quality. Quite
frankly, it's not very much of an improvement over the
group's built-in search function.

If you're wondering why this is an issue with me, it's
because I spent twelve years operating a web site/BBS as a
free public service to promote general aviation, and that
experience was ruined by those who felt that they could take
my work without my permission or without giving me credit as
the source.

I think that if you want to put what you learn here on your
web site, then you need to write it in your own words.

--- In 7x12minilathe@..., "borenson444"
<strempe4@...> wrote:

Hi

I am a Southbend lathe owner that created a database of
past messages

for the Southbend groups a while ago. Since the resource
seems to be

useful, I thought I'd maybe try and add one or two new
ones. Metalwork

being my hobby, this group seems interesting.

So I am asking permission from the administrator as well as from
members.

I hope that this message will be moderated to see if it's ok as I
would not want to post something I am not supposed to.

Thanks for your time.

Patrice



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