1. main@RealSTMFC.groups.io
   Date   
Best way to cut Plano metal roof walks

Chuck Cover
 

I am upgrading a few models by adding Plano metal roof walks and need to shorten a few of them to fit the cars.  Has anyone had experience in cutting these metal roof walks?  What is the best way, without damaging or bending the cut end?  Thanks

Chuck Cover
Santa Fe, NM
Steel casting colors

Brian Carlson
 

Have a few loads to paint. Need an idea for color for a steel casting load. Dark rusty red color, dark brown-black i see in ductile iron water main fittings at work, other? I realize what is seen today may not be what was circa 1957.


Brian J. Carlson
Re: Pullman Library Freight Car Drawings

Bob Webber
 

I have added the Haskell & Barker & the Pullman/Pullman Standard drawings.  Note that there are missing captions in the HB list - that has to be looked into - rather than delete them, I kept them because, well, I'm busy doing other things - you can always filter or sort. 

A couple of points:
I did not pre-spell check this version - it's rawer than the last.
It is not sorted - I figured than anyone using it will sort or filter as they wish.
It is saved as an XLS file type
Note - the file name has changed - as did the description.  If you still see Standard Steel - you have an old cached version, and you'll need to reload.  If you used Jeff's method, the file will no longer be there. 

This process (and the response) has been a bit eye-opening as I had though this part of the process had gone firly well - in that I thought we had captions for every thing.  We do not (or it didn't resolve correctly - TBD).

Again, these are only the drawings scanned - mostly as a result of orders, though I have started scanning entire folders.  .  These 3 list segments are a tiny proportion of the available drawings, and we are trying to process more, as time allows. 

I thought that even in the raw form, it might hep people see what might be available for projects down the road. 

Thanks for the comments!

http://www.pullmanlibrary.org/

(And yes, fonts & such need cleaning up on the page)

Bob Webber

Re: Standard Steel Freight Cars - Experiment (corrected)

Bob Webber
 

Thanks, Dan.

This is a temporary version - I plan on putting another out in the "near" future that contains more data - and will likely be a PDF with an xls alternative. 

The reason there is no order info is that these were early scans - and we didn't realize at that time if it would be important (I say we - I wasn't there).  This is a 20 year effort - you learn a lot in 20 years.  That means, also means 20 years of orders - each order teaches us a lot about what customers want - and are looking for.  We are slowly back filling data - if it is present.  many drawings have no order infor (which you can see on the list - I've taken to adding that phrase rather than leaving that part of the caption empty). 

There are a *LOT* of early cars that may be of interest.  Cement covered hoppers in the late 20s, 3 bay 50-ton open hoppers, various Duryea underframed cars (and who knew that some hoppers have parts also used on box cars (aside from trucks and such).  There is even the USRA box if you look through the list.  There are export cars, trench cars, cabooses, etc.

What I plan on doing - if the interest is there - is to include the Pullman freight, the H&B freight and perhaps some others that may be of interest.  That spans from about 1900 to 1960ish. 

The exact nature of the drawings is, in this case at least, less important than the possibilities in the orders/Lots.  By seeing that there are specific orders for specific railroads available - even if the given drawing is for a striking plate - that is important for those researching cars.  They then have a good chance of finding other, ore critical drawings for their work for the cars referenced. 

We started by putting EXACTLY what was in the data block.  THAT was, I think, a mistake.  The various manufacturers were no more standard or consistent than, well, us.   I did a quick search before posting to make some things a bit more so - you have NO idea how many abbreviations for "arrangement" there were!  Same with railroads.  AT&SF may be Santa Fe, ATSF, AT&SF, or variants.  THAT'S what we had been entering (because that's what was on the drawing).  I've changed that policy to do just as you suggest - put the reporting marks, not the name or variations.  Search for CRI&P stuff, you have to look for Rock, CRIP, CRIP, etc.  That has to change. 

MANY General Drawings have multiple associations - and when they did - no road name was provided (were it for many),  So, they can be ...entertaining...to research.  But...this is exactly why I wanted to post this - to get ideas and explain our process and then meld it all together so that we have a more useful product when we put a searchable data base on the web. 

We are VERY much restrained by the agreement with Bombardier (they own 85-90% of the collection).  That may change

At 06:23 AM 6/8/2019, D R Stinson wrote:
Bob -
A truly impressive effort, as limited as it might be. Congratulations on bringing light to the holdings of the library!

The first comment I would make is to save the file in the most easily accessible software format possible for those who may not have Excel. I would suggest staying with the XLS format rather than going to the XLSX format. The newer (and more exclusive) format most likely doesn't gain you anything, and people with older spreadsheet programs might run into an obstacle with it. Just a suggestion from someone who does not typically use M$ Excel.

While it is most likely necessary, make certain that the compression program you use to zip files continues to function correctly in the future. I have found that to be a problem with some older compressions in early versions of MS software. Just an observation.

Some of the first entries do not mention specific road names, car series, or types. This may be something that simply wasn't on the drawings or wasn't picked up when those drawings were scanned. Again, an observation.

While it may be too late for some, it might be useful if the road initials were in a separate, sortable column to facilitate locating specific cars.

And it appears you DO have something of interest to me! SS-16294.tif appears to be one of the early BA&P two-bay hoppers, although it might be one of the earlier cars, which would still be of interest.

Regarding reporting marks, I notice that some of the initials have spaces in them. the above-mentioned drawing refers to "B A & P Hopper car" with spaces between the initials. If I'm searching for a reporting mark I don't put in spaces because the railroads and the equipment registers didn't. In this case it would be more useful to use "BA&P". Note that this may simply be a typo. Personally I favor leaving in the ampersand (&), as it is correct for the era, but it's not unreasonable to do a second search if it's not there. Where road names are spelled out, such as "General drawing  of 60000 lbs. cap stock car Bangor & Aroostook", it would be helpful to have reporting marks following the name for searching. This might help avoid spelling errors derailing a search.

Just some quick thought. Again, congratulations on such an effort!!

Dan Stinson
Helena, Montana


Bob Webber

Re: Standard Steel Freight Cars - Experiment (corrected)

D R Stinson
 

Bob -
A truly impressive effort, as limited as it might be. Congratulations on bringing light to the holdings of the library!

The first comment I would make is to save the file in the most easily accessible software format possible for those who may not have Excel. I would suggest staying with the XLS format rather than going to the XLSX format. The newer (and more exclusive) format most likely doesn't gain you anything, and people with older spreadsheet programs might run into an obstacle with it. Just a suggestion from someone who does not typically use M$ Excel.

While it is most likely necessary, make certain that the compression program you use to zip files continues to function correctly in the future. I have found that to be a problem with some older compressions in early versions of MS software. Just an observation.

Some of the first entries do not mention specific road names, car series, or types. This may be something that simply wasn't on the drawings or wasn't picked up when those drawings were scanned. Again, an observation.

While it may be too late for some, it might be useful if the road initials were in a separate, sortable column to facilitate locating specific cars.

And it appears you DO have something of interest to me! SS-16294.tif appears to be one of the early BA&P two-bay hoppers, although it might be one of the earlier cars, which would still be of interest.

Regarding reporting marks, I notice that some of the initials have spaces in them. the above-mentioned drawing refers to "B A & P Hopper car" with spaces between the initials. If I'm searching for a reporting mark I don't put in spaces because the railroads and the equipment registers didn't. In this case it would be more useful to use "BA&P". Note that this may simply be a typo. Personally I favor leaving in the ampersand (&), as it is correct for the era, but it's not unreasonable to do a second search if it's not there. Where road names are spelled out, such as "General drawing of 60000 lbs. cap stock car Bangor & Aroostook", it would be helpful to have reporting marks following the name for searching. This might help avoid spelling errors derailing a search.

Just some quick thought. Again, congratulations on such an effort!!

Dan Stinson
Helena, Montana
Re: "Machinist Tools For Modeling, Part 1 - Hand Tools" Clinic ar rent NERPM

Bill Welch
 

I am pretty sure at that price those are the counterfeits people are complaining about in the Amazon reviews for the one I ordered: https://www.amazon.com/gp/product/B00IG46NL2?ref=ppx_pt2_dt_b_prod_image

Bill Welch
Re: "Machinist Tools For Modeling, Part 1 - Hand Tools" Clinic ar rent NERPM

Todd Horton
 

New Mitutoyo calipers for $30 ??    There’s you sign 


On Jun 7, 2019, at 9:00 PM, Richard Townsend via Groups.Io <richtownsend@...> wrote:

So I'm seeing "Mitutoyo" digital calipers on eBay for anywhere from $0.99 to over $100.00. Many are about $30.00. Are the $30.00 ones suspect?
Re: Standard Steel Freight Cars - Experiment (corrected)

Aley, Jeff A
 

It seems easier to just provide the link here:

 

http://www.pullmanlibrary.org/SS%20Freight%20Folder-Contents.xlsx

 

You’ll probably want to right-click and “Save As” because this link is not to a webpage, but to an Excel spreadsheet.

 

Regards,

 

-Jeff

 

 

From: main@RealSTMFC.groups.io [mailto:main@RealSTMFC.groups.io] On Behalf Of al.kresse
Sent: Friday, June 07, 2019 5:19 PM
To: main@RealSTMFC.groups.io
Subject: Re: [RealSTMFC] Standard Steel Freight Cars - Experiment (corrected)

 

Now it works! Thanks!

 

On June 7, 2019 at 7:45 PM Bob Webber <rgz17@...> wrote:

Many of you know me - I am Bob Webber, current Curator of the Pullman Library in Beautiful Downtown Union, IL.  Data on our Library can be found on the IRM web site:
https://www.irm.org/pullmanlibrary/

MANY years ago, I created a "shadow" web site because we could not get ANYTHING changed, posted or deleted on the official one - hence the link at the bottom.

For years people have been asking if we can provide a list of all the drawings we had.  We could not - there simply is no index. 

On the other hand, we have a few drawings scanned.  In one particular stretch - basically in 1928-1930 - we've been busily scanning drawings.  So now there is about 1% scanned, or about 2800 drawings. But they give a fairly good cross section of types of drawings in these years.  (Note, these years are encompassed by drawings from about SS-53000 to SS-55000) .

The list that will be linked in this e-mail is an experiment and a call for comments.  Note that this list is just that - drawing number & caption.  No sample drawings, no other information. 

We know there are errors, typos, and such - bound to be after some 50,000 drawings of all types have been scanned & metadata added.  Too, the roughly 15 years that is represented on our part was a learnign curve as we had to learn what was important, how to use the software, etc.

I'll leave off the "FAQ" I did on another list - if there are comments, questions, hate mail, etc. remember one thing.  DO NOT CALL.  The Library's phone system is about as stable as a rat in a meth lab.  Sometimes we get it, and it works beautifully (usually for spam phone calls) customer phone calls, not so much.   Use the IO, Comcast or the Pullman Library's gmail account irmpulllib&gm***.c** (asterisks to be replaced by real stuff by you, the reader).  Note.  DO NOT USE the IRM E-mail that has been set up because...you guessed  it - that too is hosed.  At times well over the limit set, at other times I simply do not get the mail, and at other times, it forwards only half of it.  So...there is that (or not).

Anyway...here is a slightly upgraded version of the freight car list (heh) for your perusal - I can answer questions as will others - you likely should keep the more personal, attacking and/or specific questions to the above accounts and not litter the list.

http://www.pullmanlibrary.org/


(The list can be found almost at the bottom of this index - which otw has not been updated since ..well...a long time)

Bob Webber


 


 
Re: "Machinist Tools For Modeling, Part 1 - Hand Tools" Clinic ar rent NERPM

Richard Townsend
 

So I'm seeing "Mitutoyo" digital calipers on eBay for anywhere from $0.99 to over $100.00. Many are about $30.00. Are the $30.00 ones suspect?
Re: Standard Steel Freight Cars - Experiment (corrected)

al.kresse <water.kresse@...>
 

Now it works! Thanks!


On June 7, 2019 at 7:45 PM Bob Webber <rgz17@...> wrote:

Many of you know me - I am Bob Webber, current Curator of the Pullman Library in Beautiful Downtown Union, IL.  Data on our Library can be found on the IRM web site:
https://www.irm.org/pullmanlibrary/

MANY years ago, I created a "shadow" web site because we could not get ANYTHING changed, posted or deleted on the official one - hence the link at the bottom.

For years people have been asking if we can provide a list of all the drawings we had.  We could not - there simply is no index. 

On the other hand, we have a few drawings scanned.  In one particular stretch - basically in 1928-1930 - we've been busily scanning drawings.  So now there is about 1% scanned, or about 2800 drawings. But they give a fairly good cross section of types of drawings in these years.  (Note, these years are encompassed by drawings from about SS-53000 to SS-55000) .

The list that will be linked in this e-mail is an experiment and a call for comments.  Note that this list is just that - drawing number & caption.  No sample drawings, no other information. 

We know there are errors, typos, and such - bound to be after some 50,000 drawings of all types have been scanned & metadata added.  Too, the roughly 15 years that is represented on our part was a learnign curve as we had to learn what was important, how to use the software, etc.

I'll leave off the "FAQ" I did on another list - if there are comments, questions, hate mail, etc. remember one thing.  DO NOT CALL.  The Library's phone system is about as stable as a rat in a meth lab.  Sometimes we get it, and it works beautifully (usually for spam phone calls) customer phone calls, not so much.   Use the IO, Comcast or the Pullman Library's gmail account irmpulllib&gm***.c** (asterisks to be replaced by real stuff by you, the reader).  Note.  DO NOT USE the IRM E-mail that has been set up because...you guessed  it - that too is hosed.  At times well over the limit set, at other times I simply do not get the mail, and at other times, it forwards only half of it.  So...there is that (or not).

Anyway...here is a slightly upgraded version of the freight car list (heh) for your perusal - I can answer questions as will others - you likely should keep the more personal, attacking and/or specific questions to the above accounts and not litter the list.

http://www.pullmanlibrary.org/


(The list can be found almost at the bottom of this index - which otw has not been updated since ..well...a long time)

Bob Webber


 


 
Want to share a room at Collinsville?

Jared Harper
 

I am interested in sharing a room at the Collinsville RPM meet.

Jared Harper
Athens, GA
Standard Steel Freight Cars - Experiment (corrected)

Bob Webber
 

Many of you know me - I am Bob Webber, current Curator of the Pullman Library in Beautiful Downtown Union, IL.  Data on our Library can be found on the IRM web site:
https://www.irm.org/pullmanlibrary/

MANY years ago, I created a "shadow" web site because we could not get ANYTHING changed, posted or deleted on the official one - hence the link at the bottom.

For years people have been asking if we can provide a list of all the drawings we had.  We could not - there simply is no index. 

On the other hand, we have a few drawings scanned.  In one particular stretch - basically in 1928-1930 - we've been busily scanning drawings.  So now there is about 1% scanned, or about 2800 drawings. But they give a fairly good cross section of types of drawings in these years.  (Note, these years are encompassed by drawings from about SS-53000 to SS-55000) .

The list that will be linked in this e-mail is an experiment and a call for comments.  Note that this list is just that - drawing number & caption.  No sample drawings, no other information. 

We know there are errors, typos, and such - bound to be after some 50,000 drawings of all types have been scanned & metadata added.  Too, the roughly 15 years that is represented on our part was a learnign curve as we had to learn what was important, how to use the software, etc.

I'll leave off the "FAQ" I did on another list - if there are comments, questions, hate mail, etc. remember one thing.  DO NOT CALL.  The Library's phone system is about as stable as a rat in a meth lab.  Sometimes we get it, and it works beautifully (usually for spam phone calls) customer phone calls, not so much.   Use the IO, Comcast or the Pullman Library's gmail account irmpulllib&gm***.c** (asterisks to be replaced by real stuff by you, the reader).  Note.  DO NOT USE the IRM E-mail that has been set up because...you guessed  it - that too is hosed.  At times well over the limit set, at other times I simply do not get the mail, and at other times, it forwards only half of it.  So...there is that (or not).

Anyway...here is a slightly upgraded version of the freight car list (heh) for your perusal - I can answer questions as will others - you likely should keep the more personal, attacking and/or specific questions to the above accounts and not litter the list.

http://www.pullmanlibrary.org/


(The list can be found almost at the bottom of this index - which otw has not been updated since ..well...a long time)

Bob Webber

Re: Standard Steel Freight Cars - Experiment

al.kresse <water.kresse@...>
 

Bob,

I could NOT find a link on your Index page.

Al Kresse

On June 7, 2019 at 7:04 PM Bob Webber <rgz17@comcast.net> wrote:


Many of you know me - I am Bob Webber, current Curator of the Pullman
Library in Beautiful Downtown Union, IL. Data on our Library can be
found on the IRM web site:
https://www.irm.org/pullmanlibrary/

MANY years ago, I created a "shadow" web site because we could not
get ANYTHING changed, posted or deleted on the official one - hence
the link at the bottom.

For years people have been asking if we can provide a list of all the
drawings we had. We could not - there simply is no index.

On the other hand, we have a few drawings scanned. In one particular
stretch - basically in 1928-1930 - we've been busily scanning
drawings. So now there is about 1% scanned, or about 2800 drawings.
But they give a fairly good cross section of types of drawings in
these years. (Note, these years are encompassed by drawings from
about SS-53000 to SS-55000) .

The list that will be linked in this e-mail is an experiment and a
call for comments. Note that this list is just that - drawing number
& caption. No sample drawings, no other information.

We know there are errors, typos, and such - bound to be after some
50,000 drawings of all types have been scanned & metadata
added. Too, the roughly 15 years that is represented on our part was
a learnign curve as we had to learn what was important, how to use
the software, etc.

I'll leave off the "FAQ" I did on another list - if there are
comments, questions, hate mail, etc. remember one thing. DO NOT
CALL. The Library's phone system is about as stable as a rat in a
meth lab. Sometimes we get it, and it works beautifully (usually for
spam phone calls) customer phone calls, not so much. Use the IO,
Comcast or the Pullman Library's gmail account irmpulllib&gm***.c**
(asterisks to be replaced by real stuff by you, the
reader). Note. DO NOT USE the IRM E-mail that has been set up
because...you guessed it - that too is hosed. At times well over
the limit set, at other times I simply do not get the mail, and at
other times, it forwards only half of it. So...there is that (or not).

Anyway...here is a slightly upgraded version of the freight car list
(heh) for your perusal - I can answer questions as will others - you
likely should keep the more personal, attacking and/or specific
questions to the above accounts and not litter the list.

https://www.irm.org/pullmanlibrary/

(The list can be found almost at the bottom of this index - which otw
has not been updated since ..well...a long time)


Bob Webber



Standard Steel Freight Cars - Experiment

Bob Webber
 

Many of you know me - I am Bob Webber, current Curator of the Pullman Library in Beautiful Downtown Union, IL. Data on our Library can be found on the IRM web site:
https://www.irm.org/pullmanlibrary/

MANY years ago, I created a "shadow" web site because we could not get ANYTHING changed, posted or deleted on the official one - hence the link at the bottom.

For years people have been asking if we can provide a list of all the drawings we had. We could not - there simply is no index.

On the other hand, we have a few drawings scanned. In one particular stretch - basically in 1928-1930 - we've been busily scanning drawings. So now there is about 1% scanned, or about 2800 drawings. But they give a fairly good cross section of types of drawings in these years. (Note, these years are encompassed by drawings from about SS-53000 to SS-55000) .

The list that will be linked in this e-mail is an experiment and a call for comments. Note that this list is just that - drawing number & caption. No sample drawings, no other information.

We know there are errors, typos, and such - bound to be after some 50,000 drawings of all types have been scanned & metadata added. Too, the roughly 15 years that is represented on our part was a learnign curve as we had to learn what was important, how to use the software, etc.

I'll leave off the "FAQ" I did on another list - if there are comments, questions, hate mail, etc. remember one thing. DO NOT CALL. The Library's phone system is about as stable as a rat in a meth lab. Sometimes we get it, and it works beautifully (usually for spam phone calls) customer phone calls, not so much. Use the IO, Comcast or the Pullman Library's gmail account irmpulllib&gm***.c** (asterisks to be replaced by real stuff by you, the reader). Note. DO NOT USE the IRM E-mail that has been set up because...you guessed it - that too is hosed. At times well over the limit set, at other times I simply do not get the mail, and at other times, it forwards only half of it. So...there is that (or not).

Anyway...here is a slightly upgraded version of the freight car list (heh) for your perusal - I can answer questions as will others - you likely should keep the more personal, attacking and/or specific questions to the above accounts and not litter the list.

https://www.irm.org/pullmanlibrary/

(The list can be found almost at the bottom of this index - which otw has not been updated since ..well...a long time)


Bob Webber
Re: "Machinist Tools For Modeling, Part 1 - Hand Tools" Clinic ar rent NERPM

Daniel A. Mitchell
 

For most purposes, if you don’t have a temperature-stabilized lab or shop, working to “tenths” is a fiction. The main exception is comparisons between two items in the same place at the same time, and at the same temperature. Just picking up an item can alter its dimensions.

Visit a metrology lab to see how it’s actually done.

Dan Mitchell
==========

On Jun 7, 2019, at 6:11 PM, Dennis Storzek <destorzek@...> wrote:

On Fri, Jun 7, 2019 at 02:31 PM, Todd Horton wrote:
Calipers are questionable to 4 places but it’s nice to have that feature.
Actually, with regard to the Mitutoyo digitals, the fourth place is limited to 0 or 5. This gives the same functionality as "eyeballing" halfway between the marks on a vernier caliper. It also lets them claim repeatability to .0005", which sounds nice. Just for grins, I looked up their tolerance specs. The 4" and 6" calipers are +/- .001 along their whole range, the 8" +/- .0015, and the 12" +/-.002. One of the things you pay the big bucks for is the assurance that when the jaws are closed, the inside jaws, step, and depth rod are also zeroed within this tolerance, which is not a foregone conclusion with some of the cheap imports. But the real advantage is the battery life; nothing like grabbing the tool and finding out it's dead. With the Mits, the low battery symbol comes on months before it actually dies. That and they last forever. We have a couple that are now thirty years old here at work that get used daily.

Dennis Storzek

Re: Rapido USRA 40-ton Boxcar

Todd Sullivan
 

Thank you, Bill, for straightening out the record. 

Todd Sullivan
(now in Richardson, TX)
Re: "Machinist Tools For Modeling, Part 1 - Hand Tools" Clinic ar rent NERPM

Dennis Storzek
 

On Fri, Jun 7, 2019 at 02:31 PM, Todd Horton wrote:
Calipers are questionable to 4 places but it’s nice to have that feature.
Actually, with regard to the Mitutoyo digitals, the fourth place is limited to 0 or 5. This gives the same functionality as "eyeballing" halfway between the marks on a vernier caliper. It also lets them claim repeatability to .0005", which sounds nice. Just for grins, I looked up their tolerance specs. The 4" and 6" calipers are +/- .001 along their whole range, the 8" +/- .0015, and the 12" +/-.002. One of the things you pay the big bucks for is the assurance that when the jaws are closed, the inside jaws, step, and depth rod are also zeroed within this tolerance, which is not a foregone conclusion with some of the cheap imports. But the real advantage is the battery life; nothing like grabbing the tool and finding out it's dead. With the Mits, the low battery symbol comes on months before it actually dies. That and they last forever. We have a couple that are now thirty years old here at work that get used daily.

Dennis Storzek
Re: "Machinist Tools For Modeling, Part 1 - Hand Tools." clinic at recent NERPM

Daniel A. Mitchell
 

Indeed! A well respected little drilling machine … and now $1200!

Dan Mitchell
==========

On Jun 7, 2019, at 10:57 AM, Jack Burgess <jack@...> wrote:

I bought my Cameron Micro Drill drill press fifty years ago and use it with #85 drills. It was about $175 when I purchased it and about $1200 now. You might find one on eBay. Made in the USA…still.
 
Jack Burgess
 
From: main@RealSTMFC.groups.io [mailto:main@RealSTMFC.groups.io] On Behalf Of Daniel A. Mitchell
Sent: Friday, June 7, 2019 7:36 AM
To: main@realstmfc.groups.io
Subject: Re: [RealSTMFC] "Machinist Tools For Modeling, Part 1 - Hand Tools." clinic at recent NERPM
 
Excellent advice. Any drill-bit can’t operate with spindle “runout” (wobble) more than a few percent of it’s diameter. Thus a cheap drill-press with, say, 0.010” runout will work just fine with a 1/4” drill, but be totally unacceptable with a #50 or smaller drill.
 
Really small drills like a #75 (0.021”) require a spindle runout of less than a couple thousandths of an inch. Cheap power tools can’t meet this requirement. Precise power tools for this kind of work are available, but not in hobby shops or home-centers, and they are EXPENSIVE.
 
“Little Machine Shop”, "Micro-Mark", and a couple other suppliers offer better-grade small machines suitable for almost all hobby work. There are still better ones, but then you’re talking real money ($20K for a Levin 4” lathe)… investigate Horological, Instrument, and Jeweler’s machines if interested.
 
Oddly, such small drills can be used, with care and practice, by hand in pin-vise or such. If not used “ham-handed” one can feel any misalignment and correct while drilling. The little drills are somewhat flexible, but can’t accept sustained flexure from a misaligned spindle.
 
In addition to spindle “runout” (lack of concentricity) there’s also the issue of the entire spindle assembly (usually called a “quill”) wiggling around loosly in its housing. Instead of a wobble, this produces a sustained side-thrust on the tiny drill that may also cause problems. All these factors lead to drill breakage, misplaced holes, out-of-round holes, and oversized holes.
 
Dan Mitchell
==========
 


On Jun 6, 2019, at 11:36 PM, John <jbopp007@...> wrote:
 
A good source for many of the tools mentioned in this clinic is Little Machine Shop.  I’ve used their sensitive drill feed for many years.  It’s well made and I’m quite pleased with it.  The keyless chuck is convenient, too.
A word of caution, though.  A sensitive drill feed like this has to be used in a machine with a smooth, true running spindle.  Runout (wobble) of just a few thousands may not seem like much with, say, a quarter inch drill bit, but with a #80 it can be serious, leading to oversized holes and/or broken drills.
John Bopp
Farmington Hills, MI
 
 
Re: "Machinist Tools For Modeling, Part 1 - Hand Tools" Clinic ar rent NERPM

Todd Horton
 

Calipers are questionable to 4 places but it’s nice to have that feature. Any time I get into the 4 place I rely on more technologically advanced measuring tools

On Jun 7, 2019, at 1:01 PM, Denny Anspach <danspachmd@gmail.com> wrote:

Jack Burgess hit it on the head when he points out that you get what you pay for: the Harbor Freight and similar are commodity grade or less calipers and if one is into disposable instruments, these can certainly be useful.

I have six calipers, Mititoyo, Helios (German), Brown & …..? (Swiss), none of them new, all extremely accurate, and none…none at all depending on batteries. I use dial calipers routinely, but use only vernier calipers to check on critical measurements. I learned my lesson on the latter some years ago when I found to my chagrin that I could find no one, nada, zip, that would even consider, much less touch a repair on any of the digital calipers (“throw them out”). I also learned that to a man, the fine instrument repair shops use only vernier calipers to check accuracy in their work.

My core instruments are almost all the very best I can find, and in that regard, they have paid, and continue to pay for themselves in accuracy, wear, longevity, and usefulness over the years- the ultimate economy.

Denny

Denny S. Anspach MD
Okoboji, IA
Sunshine NYC/P&E Steel Hopper Mini-Kit

Andy Carlson
 

Hello-
Among the many items which I will most likely never get to is a Sunshine Models mini-kit for a NYC/PE Steel hopper kit. Mint kit in never been removed from mint/new packaging.  Offered for $15, plus buyer to pay $4.50 1st class shipping to the US. I accept checks and money orders. With a small fee I also accept PayPal. Contact me off-list (Please) at <midcentury@...> for particulars.
Thanks,
-Andy Carlson Ojai CA
18741 - 18760 of 183463