Saltillo tile dials

above left ~
vertical decliner     
center ~ inclined decliner
below right ~ true south vertical dial

very far right ~~ a S 45 W saltillo dial
Links to good sundial sites   Where is the sun, the moon, and so on, interactive   
Mag Dec/Var NOAA                   North American Sundial Society          British Sundial Society          Sundial Primer      
Stained Glass Sundials          Wiki on Sundials                                     www.gnomonica.com    
more sundial links                   The standard BSS glossary                 Orologi Solari                           Sundial Atlas  
sunclocksaustralia.com          Sun Info site    

Australia school syllabus.....  
 www.australiancurriculum.edu.au/curriculum/contentdescription/ACSSU048             

UK School syllabus page 164/165..... (you need to copy and paste the link below)
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/210969/NC_framework_document_-_FINAL.pdf
EOT  notes and EOT for
2008  through  2020
A nice website on the equation of time
ASTROLABES
see
DeltaCAD macros
and Excel sheets
FREE SUNDIAL PROGRAMS, SOFTWARE (many systems/languages) also has other useful software
stained glass
FORTRAN
ProgeCAD      macros
LAZARUS  (GUI
PASCAL)
and its
ALLDIALS in zip file
and
large graph
version also
C/C++/C#

EXCEL       .xls
SUNDIAL BUYERS BEWARE ~ Before you buy a
sundial
click here and here and  "What sundials
not to buy", and "What to do now you bought it"  
Reverse engineering a store bought dial.
Nomograms  (use them,
and even build them)
Online dial design ~ My JAVA hDial, vDial, vDec,
declCurves, and almanac ~

The
DeltaCAD, NanoCAD, and FreeCAD page
have free programs, and
the Lazarus page, and

Some notes on
WIDE GNOMONS are here.
Scientific modeling
Legacy computers
with GUI simulators
and sundial
programs.
 
Legacy languages
Recent languages  
PERL
GRAPHICAL SOLUTIONS
IBM 7094   
sundial building making how build make astrolabe deltacad turbocad gnomonics clay stained glass eot scilab octave euler LISP progecad legacy programming excel spreadsheet parametric script VBS fortran cobol pascal vrml basic IBM1401 IBM360 SPS FORTRAN nomogram analemma
PASCAL
paper popups
Newer language systems
IBM 360      
CADsystems ~ FREE ~
NanoCAD, FreeCAD,
Powerdraw
shepherd's dial
S O F T W A R E
reclining meridian dial
Silver City, NM
G E T T I N G     S T A R T E D
ABBREVIATIONS:  h-dial (horizontal), v-dial (vertical), m-dial (meridian dial), p-dial (polar dial), q-dial (equatorial), etc.
The
parts of a sundial are here.....   
WHAT KIND OF SUNDIAL TO BUILD
Before you build a sundial, decide what kind is best. Latitudes between the
equator and about 15 degrees N or S would benefit from an equatorial (q) or
polar (p) dial more than from a horizontal (h) dial design. On the equator a
horizontal (h-dial) is a polar dial so use a p-dial design. At the poles, an h-dial
is an equatorial dial, so use a q-dial design ~
run the DeltaCAD h-dial at low
and high latitudes for fun, they approach the polar dial and q-dial
.
a globe dial
A diptych dial
sundial
nomograms
and
how to make
any nomogram
horizontal dials at
various latitudes
U S E F U L    S T U F F
cubic dials
astrocompass from a
WW2 aircraft
Open Book dial
north facing dial
Saltillo tile horizontal dial
Phoenix, AZ
scratch or Mass dials I grew
up with in Somerset UK
THIS DIAL WAS NOT
BUILT BY THE AUTHOR
vertical great decliner
(almost east or west but not
quite)
Equatorial dial at
an equinox
OpenScad      notes, code
NanoCAD         macros
DeltaCAD         macros
ILLUSTRATING  TIME'S  SHADOW
a polar dial in the air
projecting onto a wall
A vertical decliner
The Arizona Centenary dial,
Phoenix AZ, by the author
National Sundial
Register: No. 772
a 3d printer printed
sundial
GRAPHICAL CALCULATORS [javascript]
TODAY'S
A
LMANAC
HORIZONTAL
DIAL
VERTICAL
DIAL
VERTICAL
DECLINER
CALENDAR or
DECLINATION CURVES
Euler   
Scilab
Octave
a ceiling dial in
Silver City, NM
More 3d pictures here
vertical dial, calendar
curves, by the author,
Phoenix, AZ
vertical decliner
by the author,
Prescott, AZ
Astrolabes
FreeCAD          macros
true south vDial
Privacy and GDPR statement
The Appendices of
Illustrating Time's
Shadow
FREE
180 pages pdf format
Supplemental
Shadows
FREE
pdf format 150 pages
zip file has extras
COBOL
vertical decliner, calendar and
Italian lines, and daylight saving
time, Silver City, NM
Illustrating Time's
Shadow
FREE, the big book of all
kinds of sundials and how
to make them 400 pages
get the big 400 page book for almost every dial type FREE
Cubic Shadows  (has  theory, practice, good for cube dials)
FREE  making a horizontal and vertical dial, a simple 54 page pdf and its own spreadsheet
or...
Simple Shadows  (theory and practical how-to information)
FREE  making a horizontal dial from scratch, a 46 page pdf book with its own spreadsheet
Lino Cuts & Prints

third  edition
214 pages
PDF format
FREE to download

Printed copies
available also
Other languages are
covered,  EG
scilab,
octave, euler, blender
....
Programming
Shadows
FREE
pdf format 450 pages
many languages etc
PYTHON
Powerdraw    macros
JAVA  and Java Script
IBM 1401   
A polar dial in mid air, let your
eyes drift and you will see it in 3d
Relief Block Printing   
Wood Engraving, Wood cuts, Lino cuts
or...
ALGOL
Excel    
DeltaCAD
Spreadsheets
S45W vDec saltillo tile: Silver City,
NM USA.  "Each Hour Wounds, The
Last Kills".  Hour lines calculated,
equinox and solstice curves were
marked empirically.
Except for the mass dial (and the astrocompass), the dials here were built by the author.
The software and books here help make dials like those shown below.
September  2021 most recent updates
This website is updated monthly and always has the latest copy of the books and associated software
sundials@yahoo.com
illustratingshadows@yahoo.com
linocuts@yahoo.com