Tutorial - how to make a spiral sphere
This tutorial was compiled with Creo Elements / Direct Express to implement a model similar to my file:
Spiral sphere
You can download a free fully functional copy of Creo from PTC site:
http://www.ptc.com/products/creo-elements-direct/modeling-express/
Creo is completely "history-free" and uses the so-called "explicit modeling".
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Step 1:
Screen of Creo Elements/Direct Express, customized by user
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Step 2:
Create a New assembly
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Step 3:
Sphere
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Step 4:
Create a new workplane
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Step 5:
Draw a rectangle and turn 360°
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Step 6:
Place another workplane over inferior face, and draw a sketch
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Step 7:
Create a new part; Spiral
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Step 8:
Create an helix addiction
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Step 9:
Creation of the helix
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Step 10:
Change a part color
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Step 11:
Draw a boring tool
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Step 12:
Boring tool
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Step 13:
Boring
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Step 14:
Result
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Step 15:
Draw another inside boring tool
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Step 16:
Boring
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Step 17:
result, and the round a corner
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Step 18:
Copy and share radial the created spiral
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Step 19:
Copying and sharing commands
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Step 20:
Create a new group "Spiral pair"
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Step 21:
Created group
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Step 22:
Drag and drop "Spiral" into new group "Spiral_pair"
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Step 23:
Copy, but Not share the group of two spiral for 5 times 30°
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Step 24:
Result of duplication
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Step 25:
You can now change the color of a couple of spiral thanks to existing sharing between two paired spiral
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Step 26:
Several colors
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Step 27:
Result
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Step 28:
Also the edges can change in pair rounded or chamfered
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Step 29:
Round edges
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Step 30:
Final result