VoluMill NEXION is the next generation of VoluMill Universal. It contains major enhancements to virtually every area of the product, from performance, to graphics, to the user interface, many of which are direct responses to input from our valued customers. Redesigned Toolpath Manager NEW Verification Technology NEW Layer Support Improved Graphics 64-bit Processor Support Toolpath Improvements Improved Rest-Milling Improved Geometry Selection New Assembly Support for STEP Files Improved predictability when chaining boundaries Improved Cylindrical Body support Thumbnail support File Merge consolidated into the File Open dialog as a checkbox option VERSION 5.5 Pre - Drilled Hole Support Reduce cycle time and tool wear by plunging directly into existing holes instead of using a helix or ramp. Instead of just plunging to depth, VoluMill take s into account the hole geometry. It begins by plunging just above the shoulder of the drill. It then spirals outward to an optimal diameter then helixes to depth to remove the material left by the drill poin t