CNC Code Lab | CNCVEYRA

CNC CODE LAB • TURNING • G-CODE VERIFICATION

CNC Code Lab.

Write, generate, verify and simulate CNC turning code in your browser. DXF 2D profiles, diameter/radius programming, turning operations and X/Z toolpath simulation are designed for learning and verification—not as a guarantee of safe machine operation.

01 DRAWING UPLOAD 02 SCAN / VERIFY 03 X DIAMETER / RADIUS 04 OPERATION + PARAMETERS 05 GENERATE / VERIFY 06 SIMULATE / EXPORT

TURNING SETUP

CNC Turning — X / Z only

Y AXIS NOT USED

Turning convention: X = diameter/width, Z = length/axis. Y is intentionally excluded. Default X programming is Diameter.

X Programming Mode Z0 Reference Stock Diameter X Stock Length Z

UPLOAD DRAWINGDXF • DWG • PDF • JPG / JPEG

OPEN LIVE DWG →

Loads a saved CNCVEYRA drawing JSON, or a DXF file, straight into CNC LAB — original X/Z values as-is, with an editable 2D profile drawn below.

Upload a technical drawing, then scan it. Image/PDF scanning reads dimensions and attempts to reconstruct the visible lathe contour into editable X,Z profile points.

I have reviewed and verified the detected drawing, dimensions and profile.SCAN REQUIRED FOR UPLOADED DRAWINGS

Manual profile (X,Z) — one point per line

If DXF geometry is loaded, the detected connected profile is used first. For JPG/PNG/PDF, the scanner first reconstructs a dimension-driven editable contour when the drawing dimensions are recognized; otherwise it uses the visible contour as a fallback. Manual X,Z remains editable. In Diameter mode, DXF OD 50 mm becomes X50; it is not doubled.

TURNING OPERATIONS

Select operation

OD RoughingProgressive stock removal OD FinishingFollow final profile FacingService currently unavailable • coming soon ID Boring RoughService currently unavailable • coming soon ID Boring FinishService currently unavailable • coming soon GrooveService currently unavailable • coming soon Cut / Part-offService currently unavailable • coming soon

Feed mm/rev learning value Spindle Speed RPM Approach Clearance Configurable Depth of Cut (Radius) Radius DOC per rough pass. Diameter change = 2 × DOC. Rough Feed mm/rev used on roughing passes Finish Feed mm/rev used on final profile Finish Allowance Radial allowance left for finishing Rough Tool Number Roughing tool / offset, e.g. T0505 Finish Tool Number Finishing tool / offset, e.g. T0606 Finish Pass Step (Diameter) Each finish pass offsets X by this amount Finish Passes Repeated finish passes, like the supplied program

Roughing formula: DOC is radius-based. Every rough pass removes DOC from the radius, so the corresponding diameter step is 2 × DOC. The finish allowance is also radial. Rough feed and finish feed are applied separately to their respective toolpaths.

Ready. Load a DXF or use the sample profile, choose an operation, then generate.

X/Z TOOLPATH SIMULATION

Turning Toolpath — X / Z axes

DATUM: Z0 = front face (RIGHT) • negative Z runs RIGHT → LEFT • X0 = spindle centerline at the bottom. Program and simulation follow the same X/Z order.

Rapid / approachCutting moveArc/profileCurrent tool

Position: X0.000 Z0.000 • Line: —

Simulation shows the programmed X/Z path and basic checks. It does not account for every controller mode, tool geometry, chuck/workholding condition, offsets, collision, machine limit or cutting force.

MANUAL CNC CODE

Write / Verify / Simulate G-code

X/Z TURNING

Manual verifier checks basic X/Z turning syntax and common programming issues.

MANUAL CODE SIMULATION

Toolpath Simulation — X / Z

Rapid / approachCutting moveArc / profileG32 / G33 threadingCurrent tool

Position: X0.000 Z0.000 • Line: —

This simulation is generated from the manual CNC code after basic parsing. It is for learning and verification support only; it is not a guarantee of machine safety.

MANUAL PROGRAM EXPORT

Export NC / TXT

File name (letters + numbers only)

NCTXT

EXPORT CNC PROGRAM

Export after verification + simulation review

⚠️ Machine-ready template: generated programs use the configured CNCVEYRA header/footer. Independently verify controller, tooling, offsets, workholding, feeds, speeds and complete toolpath before machining.

File name (letters + numbers only)

NCTXT

DXF → CNC Turning workflow

DXF → Geometry Detection → X Diameter/Radius → Operation → Parameters → Generate → Verify → Simulation → Export.

Safety by design

The lab never claims that generated code is machine-ready or guaranteed safe. Real controller, tooling, offsets, workholding, machine limits and setup must be independently verified.