Use the Approach page to specify the helical ramp moves that are added to Vortex toolpaths to ensure the tool approaches the stock safely and does not plunge into the stock. Vortex adds these moves when the (linear/arc) approach outside moves (specified on the Leads and Links pages) would result in the tool plunging into the stock.
Helical Ramp — Specifies the size of the helix.
Max zig angle — Enter the angle of descent formed as the tool ramps into the block.
Circle Diameter (tool diameter unit) — Enter the diameter of the circle using tool diameter units (TDUs). Tool diameter units is the distance relative to the tool diameter. So, a 10 mm tool and a TDU of 2, gives an actual value of 20 mm.
Height — Enter the height above the toolpath segment for the start of the ramp. This is measured relative to the tool axis. For 3-axis machining, the tool axis is the vertical axis. For multi-axis machining, the tool axis is specified on the Tool Axis page.