Today I want to share a clear example of the correct use of mathematics applied to design, designing a dodecahedron in solidworks, but not a solid body, if not one more elaborated using other tools offered by SOLIDWORKS, in this tutorial.
Do you enjoy it
VIDEO TUTORIAL: https://grabcad.com/tutorials/design-a-dodecahedron-in-solidworks-math-applied-to-design
Just made this dodecahedron without using any equation.
I used the line tool in 3D sketch, starting from a point of a line, make it to converted to spline, made the spline to connect to adjacent line. This makes the spline in plane passing through the two lines. Then make straight lines using the perimeter of the splines. Delete the spline and I get all the lines for a pentagon in one plane.
https://grabcad.com/zulfiqar.islam-1 Good work, it is very useful although personally I always suggest the use of equations and formulas in the designs, personally there are times when I have very large projects and with too many components, but I always associate formulas and equations in everything, including in the patterns, that assures me that regardless of whether the changes requested by the client are small or very complex with a simple change of a couple of equations, all my assemblies and components will respond to the intelligent design, making sure to save hours of work, instead to do everything in a very manual way and having to make changes to the design for hours.
Thanks https://grabcad.com/fredswug-1, I made an icosahedron a long time ago but it was a solid model
Thanks Ramirez!
I also do large assignments in your way. Kind of relational database. Making change at one point makes changes in all related other points as defined in the equations. Yet, some times, spot solution is needed. This is that kind of way around.
final sample of the product, were a total of more than 200 dodecahedra in 7 different measures for this project, all made in pure brass.
"Pure Brass"? Brass is an alloy :)
The models look great though very nice job. Are they assembled with wire, or is that a 3D printing job?
Consider making use of the Polygon tool when sketching your layout sketches. So much easier to simply type "5" for the number of sides versus drawing all the lines, then setting the relations.
Thanks https://grabcad.com/fredswug-1
in effect, it is an alloy the term "pure" is a habit that I always have when referring to metal, as for the polygon tool in the 3d sketch is not available, it is blocked, (if you know if you can unlock it would be great know it) which I consider a very silly mistake of solidwoks, my version is 2016 I do not know if that was corrected in the 2017 or 2018 versions (it would be great if it was corrected), but I consider it more useful to draw a pair of polygons in a sketch 3d, instead of filling the feature manager of many planes and sketches when a 3d is achieved all in one, and your last question, it is not 3D printing, they are welded with TIG welding, and only 1: 1 scales were used in the main views to build, the smaller dodecahedron has a height of 13 "and the largest of 35". being 240 in total in 7 different sizes
https://grabcad.com/fredswug-1
This is what I mentioned in reference to your suggestion to the polygon tool, I searched for options but nothing if you know if it can be unlocked in the 3d sketch would be very useful, my version of solidworks is 2016
Angel,
You are right, no Polygon tool in a 3D sketch.
I can see how sketching this in 3D mode would be useful.
I normally create an icosahedron from three 2D golden rectangles. I need to see if a dodecahedron can be laid out in a similar method.
Logically you can not make a polygon in 3D space. Polygon is purely 2D space thing. Polygon in 3D space is meaningless. There is no way to build codes/algorithm for making polygon in 3D space.
https://grabcad.com/zulfiqar.islam-1
in fact if it is possible to generate polygons in a 3d space, remember there is the option of planes at 3d level, converting that space in 2d temporarily, if you think it is a very serious error on the part of SOLIDWORKS, because when generating an 2d temporary, even so polygons are traced manually, so it is possible (and should) that this tool can be used even without the support of 2d plans because exist the principal axes and other construction references in the same 3D sketch for define it
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