3D printing and forming of structures

A method of forming a tactile feature on a surface using the technique of drop ejection to deposit droplets of deposition material, said method comprising depositing a plurality of droplets on said surface to form a tactile feature comprising multiple discrete portions, wherein said tactile feature comprises at least one portion establishing a bulk profile of said tactile feature and at least one portion formed on the bulk profile establishing texture of said tactile feature.

A method of forming a tactile feature on a surface using the technique of drop ejection to deposit droplets of deposition material, said method comprising depositing a plurality of droplets on said surface to form a tactile feature comprising multiple discrete portions, and subjecting said droplets of deposition material to radiation treatment before deposition.

A method of forming a tactile feature on a surface using the technique of drop ejection to deposit droplets of deposition material, said method comprising depositing a plurality of droplets on said surface to form a tactile feature comprising multiple discrete portions, and subjecting said droplets of deposition material to radiation treatment during deposition.

A method of forming a tactile feature on a surface using the technique of drop ejection to deposit droplets of deposition material, said method comprising depositing a plurality of droplets on said surface to form a tactile feature comprising multiple discrete portions, and subjecting the droplets of deposition material to pulses of electromagnetic radiation coincident thereon.

A method of forming a tactile feature on a surface using the technique of drop ejection to deposit droplets of deposition material, said method comprising depositing a plurality of droplets on said surface to form a tactile feature comprising multiple discrete portions, and subjecting the droplets of deposition material to pulses of electromagnetic radiation coincident thereon after deposition.

A method of forming a tactile feature on a surface using the technique of drop ejection to deposit droplets of deposition material, said method comprising depositing a plurality of droplets on said surface to form a tactile feature comprising multiple discrete portions, and utilising a droplet of cross-linkable polymeric material and initiating the cross-linking immediately after deposition by chemical means using a further droplet coincident thereon.

A method of forming a tactile feature on a surface using the technique of drop ejection to deposit droplets of deposition material, said method comprising depositing a plurality of droplets on said surface to form a tactile feature comprising multiple discrete portions, and utilising a droplet of cross-linkable polymeric material and initiating the cross-linking immediately after deposition by chemical means using radiation treatment.