Rapid Prototyping Glossary

J

Definitions for commercial rapid prototyping, production, machining, casting, moulding, finishing and inspection terms.

Jaw chuck

A chuck with moving jaws used to grip a workpiece on a lathe, mill or rotary device.

Jetted photopolymer

A material-jetting process in which droplets of photopolymer are deposited and cured to build the part.

Jewellery resin

A photopolymer resin formulated for fine detail and, in castable grades, for clean burnout in jewellery pattern-making.

Jig

A device that guides a tool or controls location during manufacture or assembly.

Jig grinding

A precision grinding method used for very accurate holes and contours, especially in tooling.

Job traveller

A shop-floor document that follows a job through operations, recording status and instructions.

Jog

A manual incremental machine movement used during set-up, inspection or positioning.

Joint line

The visible interface where two mould, cast or assembled elements meet.

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