 Warping  Stable  Porous  Uniform grain structure.

 Quality of finish  Tool wear  Expansion.

 Consider… › Initial investment › Training › Working environment › Flexibility › Communication › Wastage.

 Repeatable quality and a reduction in the amount of tolerance.

 Modelling wax, high-density foam, manufactured board and card.

 Consider health and safety, tooling, feed speed and surface finish.

 Modelling wax can be machined by CNC and then used to produce a master for lost wax casting.

 Consider feed speed, depth of cut, coolant and tooling.

 Changes of colour and texture give a better aesthetic view of what a product may look like.