When it comes to making a design sketch 3-Dimensional, a lot of designers don't have the appropriate resources and materials on hand and often more importantly the time to manufacture their piece. So software tailored to help you create a 3D computer model are very useful. A really good free downloaded software available is Google SketchUp
I thought I would give it a try and see if I can recreate my sketches of the central column with interlocking cogs, and take the design further 3-Dimensionally -
A huge advantage with using these modelling programs I can move around my design with ease, making it much easier to judge size, proportion, angles and scale compared to a flat 2D drawing. So it was easy for me to copy a cog that works with the column and rotate it to the angle I need to have them meet the circumference of the cylinder at the correct position
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