Examples of Functionality  
     
  The use of FLEX to calculate a transition of ordinary shape:  
 
 
Problem: Superior part of an In-transit mixer.
The Flex tool is a resource that allows any transition or intersection to be unfolded, simply by informing the X and Y coordinates of each of the points that compose both profiles of the transition. The transition can be either opened or closed (as in this case).
 
     
 
 
     
 
Inside the AutoCAD, the superior profile is drawn. However, before capturing the lines it is necessary for them to be Polylines.
 
     
 
 
     
 
 
     
 
To load the profile inside the flex, the user must load the Lisp routine called “getpline.Isp” which is inside the CALDsoft7 folder. Once loaded, the user must type “getpline” and select a polyline desired to open with Flex.
 
     
 
 
     
 

Inside the Flex module, simply choose the plan (B1 or B2, since the part is a transition) and then import the points (Tools>Import from CAD) as seen in the figure below

  
     
 
 
     
 
 
     
 
After loading the points of the superior profile, simply create an inferior profile with the standard Flex tool’s shapes (since the inferior profile is a circle).
 
 
 
 
 
 

 

  
 
 
     
 
 
     
 
Now it will be necessary to alter the positions of the plans to obtain the desired shape. In this case the chosen plan to work was B2

First, the Z axis position of the part must be altered, so that it remains displaced, this alteration will be done in the position of the chosen axis, as highlighted in red in the picture below.
 
     
 
 
     
 
 
     
 
Now, to turn around the inferior profile it will be necessary to alter the value of the “Rotation” of Y in 90° (Highlight in red in the figure).
 
     
 
 
     
 
 
     
 
Then all that remains is to calculate, to do it, press thehttp://www.caldsoft.com/pt/imagens/botao_flex.jpg button. The shape will have all the presented properties in standard shapes of CALDsoft7 (3D, user dimensions, divide unfold and so on).
 
     
 
 
 

Unfolded part

  
     
 
 
 

3D View

 
     
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