Verify your G-code on a digital twin. Catch crashes, optimize cutting conditions, and calculate exact cycle times before machining.
What is NC program verification? It is specialized software that interprets the actual NC program—the post-processed G-code—and executes it on a virtual machine model to catch collisions and errors before machining. With Eureka3X, your CNC machine simulator serves as a perfect digital twin for rigorous NC program verification.
💻 Windows 10/11 Required Eureka3X is a desktop simulator and cannot be installed on mobile devices. Send link to my email ➔
Video demonstration showing Eureka3X CNC machine simulator performing Haas NC program verification on a digital twin, avoiding real-world collisions.
Trusted by professionals who can't afford mistakes
Eureka3X is built on Eureka Virtual Machining — 20+ years of industrial CNC simulation, used in production by world-class manufacturers.
Sound familiar?
These happen every week in every shop. Eureka3X fixes all three.
THE PROBLEM
Post-processor bugs and errors
CAM simulation shows a perfect part, but the post-processor generates an unexpected retract or incorrect cycle parameter.
THE FIX
Verify the actual CNC program
Eureka3X simulates the exact G-code that goes to the machine, catching post-processor issues before they hit the controller.
THE PROBLEM
Setup and fixture collisions
Unexpected rapid moves (G0) into clamps, vises, or the machine table cost thousands in damage.
THE FIX
Full digital twin simulation
We simulate the entire machine kinematics, including your specific fixtures and tools, catching any physical interference.
THE PROBLEM
Machine-specific logic mistakes
Missing M-codes, incorrect work offsets (G54-G59), or tool length compensation errors (G43).
THE FIX
Controller-accurate emulation
Eureka3X emulates the exact logic of your specific controller (Fanuc, Haas, Heidenhain, Siemens), warning you of logical errors instantly.
No credit card · Windows 10/11 · 4 machines included
G-Code Simulator vs CAM Simulator vs Online Viewer
Online viewers
CAM simulators
Eureka3X
Shows toolpath
✓
✓
✓
Real machine simulation
✗
Partial
✓
Post-processed G-code
✗
✗
✓
Controller-specific interpretation
✗
✗
✓
Full collision detection
✗
Partial
✓
Machine structure / fixtures
✗
Partial
✓
Material removal accuracy
✗
✓
✓
Works without CAM software
✗
✗
✓
Production-ready
✗
✗
✓
Online tools are fine for checking toolpath direction. Eureka3X is for people who run real programs on real machines.
Ready to try it?
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The math is obvious.
A spindle crash means
Days or weeks offline
Every day of downtime erases margin
Costly machine repair
Spindle, fixture, and tooling damage
Scrapped parts and missed deliveries
Reputation damage on top of material loss
catch it here instead
Eureka3X protects you
One crash costs more than a year of Eureka3X. Load your G-code, run the simulation, see the crash on screen — not on the machine.
30-day free trial · no credit card required
Verify Any CNC Program
Fanuc / Haas / Heidenhain / Siemens
The same G-code you send to the machine. Interpreted the same way. No rewriting, no approximations.
From download to simulation in under 10 minutes
Register — free, no credit card
Download Eureka3X for Windows
Load your NC program, tools, work origins, stocks and fixtures
Ready out of the box 4 production-ready machines included from day one: Fanuc, Haas, Heidenhain, Siemens to cover your whole shop.
Frequently Asked Questions
+What is NC program verification?
It is the process of simulating the actual post-processed CNC code to ensure it is collision-free and runs correctly on the real machine.
+Why can't I just use CAM simulation?
CAM simulation verifies the toolpath before post-processing. NC program verification verifies the exact G-code the machine will read, catching post-processor errors and machine-specific logic.
+Which machines are supported?
Eureka3X includes ready-to-use digital twins for Fanuc, Haas, Siemens, and Heidenhain machines out of the box.
+Can I load my own tools and fixtures?
Yes, Eureka3X allows you to import your exact tooling, fixtures, and stock to simulate the real-world setup perfectly.
