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Spirograph Detail Item

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Spirograph Detail Item

I have made a spirograph detail item in revit for fun. You can see some of the designs which can be made inlcuding a standard oval. There are many parameters to adjust to alter the shape. Some notes on how they work are:

-i have placed 180 of the nested spirograph dot family and adjusted the rotation parameter of each so that there is 1 ever 2 degrees of rotation meaning the spirograph covers a total of 360 degrees.

-if the larger circle radius can be divded equally by the smaller circle radius then the pattern will complete in one 360deg rotation

-if the larger larger circle radius is not equally divisible by smaller circle radius (ex. LR = 100, SR = 60 then you wil have to find lest common multiple of LR to figure out how many rotations around the large circle are required (3 x 100 = 5 x 60 = 300) and place multiple of the item and rotate into alignment using the radial arm parameter turned on.

- if the small radius is exactly half the large radius you will be making an oval, the number of complete rotations the small circle makes indicates how many vertices there are if thats what you want to call them.

- if the arm length is greater than small radius then you will get the loops at the vertices, if the length is smaller than you will get rounded vertices

CSI Division: 98 Standard Details
RevitCity Division: Detail Components > Div 01-General

Product Version: Revit Architecture 2020

Uploaded By: marmiketin1
Uploaded On: Fri, May 29, 2020

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