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Lacados LAKManual Vectric Aspire V12

How to use the threadmilling toolpath in Vectric software | 2D Toolpaths

Overview

Section titled “Overview”

The video explains the Thread Milling toolpath in Vectric software, covering the toolpath form, tool selection, thread definition, internal/external thread cutting, and how to prepare pocket geometry for internal threads.

Steps

Section titled “Steps”
  1. Open the Toolpath tab and click the Threadmilling toolpath icon.
  2. Set Start Depth (usually 0) and Maximum Depth for the thread. The thread length is calculated automatically and displayed for reference.
  3. Click Select to choose a tool from the database. Choose either a single-point or multi-threaded tool. For multi-thread tools, thread pitch and length are defined by the tool.
  4. Define the thread:
    • Choose a pitch preset or enter a pitch value manually.
    • Enter the major diameter.
    • Set fit tolerance (positive values cut deeper).
    • Select internal or external thread type.
    • Set thread direction and cut direction.
  5. For internal threads, optionally use Create circles for internal threads to generate clearance circles based on the tool offset.
  6. Move the generated vectors to a separate layer and create a pocket toolpath to clear the hole before thread milling.
  7. Re-select the original thread vectors, name the toolpath, and calculate. Preview the toolpath before running.

Key Points / Warnings

Section titled “Key Points / Warnings”
  • Thread milling vectors are used only for location; the toolpath is cut from the vector center regardless of shape.
  • Thread milling pass depth refers to sideways passes, not vertical depth.
  • Thread length is always less than maximum depth due to lead-in and tool base geometry.
  • Maximum depth must not exceed the tool’s thread length. The software will warn if this is violated.
  • A positive fit tolerance produces a slightly deeper thread, helping the thread run smoothly. Test to find the correct value.
  • When using a multi-threaded tool, pitch and pitch presets are greyed out because those values come from the tool definition.
  • Cut direction determines whether the toolpath spirals downward or upward; choice depends on spindle direction, tooling, and finish.