Windows version updated to match the latest Unix version by Don.
The DropBox name of the file is Threadsw-5.zip.  The ZIP file containes 
the windows executable (Threadsw.exe) as well as another ZIP file
(Thrdwsrc.zip) that contains all of the source code for Borland C++
Builder 3.0).

	John Beidl (jbeidl@ibm.net)

Original TXT file from Don for this versoin follows:


Howdy chipmakers,

	Well -- here is still another version of my "threads" program.  It
turns out that I had a mis-computation in my program, resulting in the
truncated top threads being too shallow.  Thaks to Bill Darby's prodding, I
finally found the error and corrected it.  (I hope that there are no other
ones lurking in there. :-) The Sharp-V threads should have been correct,
albeit somewhat useless, and the formed should have been correct as well

	Others have suggested that the truncated top threads are important
enough to be needed in the output, so I have now got threads-4 out. :-)

	So -- now the program displays all values in table form.  The
examples follow:

 ======================================================================
>threads 16

For a thread of:		 16.0000 TPI
	the pitch is:		  0.0625"/thread

				|	Thread Style
	Format			|  Sharp-V	|  Trunc	|  Formed
	=====================================================================
	Single depth:		|  0.0541"	|  0.0474"	|  0.0338"
	Double depth:		|  0.1082"	|  0.0947"	|  0.0677"
	29.5 deg. angle feed:	|  0.0622"	|  0.0544"	|  0.0389"


Note:	Sharp-V is top and bottom sharp. (Not often the best choice.)
	"Trunc" is top truncated only.
	"Formed" is both top and bottom truncated or rounded.

	Select whichever suits your needs and available tooling.

 ======================================================================
>threads -m 1.25

For a thread pitch of:		    1.25 mm
				|	Thread Style
	Format			|  Sharp-V	|  Trunc	|  Formed
	=====================================================================
	Single depth:		|  1.0825 mm	|  0.9472 mm	|  0.6766 mm
	Double depth:		|  2.1650 mm	|  1.8944 mm	|  1.3531 mm
	29.5 deg. angle feed:	|  1.2437 mm	|  1.0883 mm	|  0.7773 mm


Note:	Sharp-V is top and bottom sharp. (Not often the best choice.)
	"Trunc" is top truncated only.
	"Formed" is both top and bottom truncated or rounded.

	Select whichever suits your needs and available tooling.


 ======================================================================
>threads

Usage:
	threads TPI
		or
	threads -m pitch

 ======================================================================

Note that you can get a reminder on how to use it by just typing the program
name with no arguments.

	As before, this is as I compiled it on unix, and someone else will
have to produce the version for MS-DOS.  The executable is for SunOs, but
there is a Makefile for compiling it on linux systems as well.  (One or the
other should work for most unix systems.)

	The file name is threads-4.tgz (a gzipped tar file), and this file
is threads-4.txt (I'll post this file, as well as uploading it to the
dropbox as documentation.

	Enjoy,
		DoN.