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--- Begin Message ---Dear Sundialists, I want to share with you my current origami-like modification of Liebsher's 3-sided Pyramidal SUNDIAL-COMPASS https://www.dierck-e-liebscher.de/handouts/sonnenuhren.html On my page https://www.math.bas.bg/complan/valhrist/mystuff.htm#4-Pyr I present a 4-sided Pyramidal SUNDIAL-COMPASS. It is more natural, with faces to E-S-W-N. The two Deltacad macro files are made for the two periods 21 DEC - 21 JUN and 21 JUN - 21 DEC. This avoids drawing analemmas for the whole year (as in the original) and also the time interval is made smaller for more precise and easy reading of the time. A video shows the folding of the dial. At the moment, my Deltacad macros DRAW ONLY THE MAIN PART without the tilting possibility of the original for small latitudes. Increasing the inclination allows direct FULL DRAWING for latitudes not so close to the equator (e.g. >30). More info exists in the TXT file https://www.math.bas.bg/complan/valhrist/4-Pyramid.txt Let me remind you that the last discontinued Demo version of DeltaCad can be downloaded from Sabanski's page https://www.mysundial.ca/tsp/deltacad_sundial_macros.html I hope you will find time to check my macros! Your feedback will be appreciated! Best wishes! Valentin Hristov P.S. You can contact me privately at [email protected]<mailto:[email protected]>. If you give me your coordinates, I can send you two PDF files for your place for the two periods.
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