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Tuesday, December 7, 2010

Project 3 Step 3

Step 3

This step builds a pear shape bezel in the 3 axis flat. The stone size is 4 X 3. I begin by making a rectangle vector the size of the pear shape stone and then place a 3mm circle at the bottom. The rectangle serves as a guide for my stone. I edit the circle into the pear shape. I then offset the stone vector outward and inner .35mm to create the bezel walls and the inner opening. I F12 and add 1.5mm to the outside vector. Then add a -45 degree pyramid with a start height of -.5mm. The inner vector is zeroed. This creates the bezel that is added to the assembly by the mesh creator.

The flat three axis model is used for the bezel. A small model size is used to just accommodate the setting.


Draw a 3 X4 guide box to create the bezel setting.


Draw a 3 mm circle and select the circle first then the rectangle then click align bottom.


Node edit the circle into a pear shape using the rectangle as a guide.


 Offset the stone vector both inner and outer by .35mm


Using F12 add 1.5mm to the outside vector.


Using F12 add a -45 pyramid with a -.5 Start Height to the stone vector.


Using F12 zero the inner vector.


Add to the assembly with the mesh creator.


Rotate and nudge into position.


Copy and paste another bezel into the assembly.


Rotate the second bezel 180 degrees in z.


The completed ring.


 The Pear Shape Bezels Video

 

Project 3 Euro Shank


This is a simple design with many possible ways to recreate it differently. It is designed to fit a half carat center diamond set in a peg head. Two 4 X 3 pear shape stones are placed as accents on the side. It also has a euro shank for both looks and comfort.



Step 1


 Select the Tapered Round Shank from the model New Shanks section. The following pictures show the values entered.



This is the view showing a thick and not very flowing shank design created by the wizard. I am going to edit this model into my final shape. The important thing to remember during the design process is to create smooth flowing lines and pleasing shapes.


The first thing to do is accept the wizard, then reset the relief, then offset the inner shank in the profile section out by 1.8mm. The thickness of 1.8mm between the fingers keeps the ring comfortable. This will be the vector I will edit to make the ring profile including the euro shank later. Normally, I would do all the editing in one step but to demonstrate the thinking process I have broke it down in smaller sequences. 



The next thing to do is edit the profile curve into our desired shape. This is done by node editing. I also inserted a couple of nodes to create the profile I wanted.


This is the view of the shank after editing in the profile section.


Here I am editing the top rail for the ring shank. I only reshape the top left side. I will delete the bottom rail and then mirror the edited top rail to the bottom. 



A two rail ring sweep is done with the changed vectors including the profile or ring silhouette.


This is the result of the ring sweep and a mirror merge left to right.


A rectangle vector is added to the shank where we want to make a ridge for decoration. This rectangle needs to be node edited to match the shape of the rails.


Use the shape editor F12 to add a domed 90 degree height to our vector.

The result is then mirror merged left to right to get both sides of the ring.


The 2D view of the completed shank.


The Shank Video