These docs cover RhinoArtisan 7.0, which is still in beta. The contents are provisional: features and pages can still be added, changed or removed before the final release.
Diamonds and Gemstones
Prong Axis
Prong Axis
The Prong Axis command draws the central axis line of each prong around a gem — guide curves only, with no thickness, running from a bottom point to a top point. Select one or more diamonds or gemstones and the command generates one set of axis lines per gem, ready to use as reference or as the backbone for building custom prong geometry of your own.
The command panel has two sections: Prongs, where you set how many axis lines to draw, and Parameters, where you shape them.
Prongs
Use the prong selector to set the number of prongs around the gem. The selector adapts to the shape of the first selected gem, offering the prong-count options that make sense for that shape.
Parameters
- Height: The vertical length of each prong axis, from top to bottom.
- Gem Inside: How far the prong top leans inward over the gem’s girdle.
- Over Girdle: The vertical offset of the prong top above the girdle.
- Bottom Rail Inside: An inward offset applied to the prong bottoms.
- Straight / Curved: Two buttons choose the axis shape — a straight line from top to bottom, or a curved axis that rises vertically before leaning inward.