CNC Software

CAD, CAM, post-processing, control and shop management are five layers. Buying the wrong one is expensive.

A CNC workflow is a chain, and every link has software. Understanding the chain prevents two common mistakes: expecting CAM to fix bad geometry, and expecting design software to manage a business.

CAD — geometry

Draws the part in real dimensions: 2D profiles for sheet work, 3D models for machining. Look for reliable constraints, clean DXF/SVG export and the ability to import the formats your customers send. For sheet work, 2D is often all you need.

CAM — toolpaths

CAM decides how the cutter moves: passes, stepdown, stepover, feeds and speeds, leads, ramps, tabs and order of operations. The quality of a CAM strategy shows up in cycle time, tool life and finish — not in the feature list.

Material yield is a separate question from toolpaths. The sheet yield calculator gives a fast baseline before you open CAM.

Post-processor — translation

The post-processor converts toolpaths into the G-code dialect your controller understands. A generic post can produce code that looks valid and behaves badly. If your machine vendor supplies a post, use it; if you write your own, test every operation on scrap.

Machine control — execution

The controller software runs the job: homing, work offsets, feed override, tool changes, dust extraction and safety interlocks. It is part of the machine, not a purchasing decision. Document working settings per material and tool.

Workshop management — the business layer

Quotes, orders, stock, scheduling, time tracking. Spreadsheets work until volume makes them fragile. 0Machine covers this layer with project costing, customer and order management, material inventory, quotes and invoices, calendar and time tracking.