Building a bottle (Lathe method)

LATHE METHOD

Firstly the basic shape of half of a 2d bottle is built using the line tool..

Form a cylinder which is then snapped to origins and given a radius of 25mm and height of 150mm.

Make another cylinder 12.5mm and height 30mm and snap to origin then assemble after. Then rise it up using y-axis above first cylinder.In the object property, select freeze.

Reset the grid to 10mm spacing and snap a line to this geometry, then change grid to 1mm spacing to allow for greater detail. Convert to editable spline and snap vertices to grid.

Retain 0.5mm gap of tolerance on the neck to allow for threads on the neck.

In the vertex level and the snap off, refine the geometry. Check and adjust fillet radius on the curvature on the neck. Add the concave curvature on the base.

In order to add the label placement, I refined the geometry and applied bezier corners to the line. Then it was time to remove the frozen object template.

After choosing the Lathe modification I aligned it by selecting 'Min'.

 Checking it in its rendered form, I noticed it was inside out, so I checked 'Flip Normals'.

Time to add the Shell modifier, zero for the outer amount and bearing in mind dimensions from the bottle 0.5mm for the inner amount.

As you can see the bottle surface has a few lumps and bumps, so this can modified by scrolling down the hierarchy in the modify panel. ( see below)

Smoother Render

 Now for the neck of the bottle.

Create a helix of 12.5mm with 3 turns. Then return to absolute zero.

Now I have to create shape of a 3d helix with the line tool. After adjusting the hierarchy of the line shape, snap shape to helix.

With the helix selected, go to loft and get shape now selecting the line shape.

 Modify the screw ridge using deformation of twist and scale to smooth the beginning and end of the helix ridge unit. Attach both components.

  Finally the bottle is rendered using turbosmooth on it and the 3d helix.  

What will I do next......