Precision CNC Machining Calculators & 3D CAD
Professional engineering tools for Speeds & Feeds, PCD Bolt Hole Circles, Circular Interpolation, G-Code Macro Generation, and 3D CAD Modeling.
Speeds, Feeds & Machining Calculators
Milling Speeds & Feeds
Calculate optimal Spindle RPM, Table Feed Rates, Material Removal Rate (MRR), and Chip Load for all milling cutters.
Launch CalculatorDrill Speeds & Feeds
Compute drilling RPM, feed rates, peck depth intervals, and cycle times for HSS, Carbide, and Indexable drills.
Launch CalculatorID / OD Circular Interpolation
Adjust effective feed rates for internal and external circular milling paths to prevent tool overload and gouging.
Launch CalculatorAngle & Length Trigonometry
Solve right-angle triangles, tapers, side lengths, and chamfer angles instantly for CNC setup dimensions.
Launch CalculatorMill / Drill Contour Calculator
Compute tool path offsets, step-over increments, and profile milling coordinates for precision contouring.
Launch CalculatorG-Code & CNC Program Generators
PCD Bolt Hole Circle Generator
Generate exact X/Y hole coordinates and G-Code drilling cycles (G81/G83) for Pitch Circle Diameters.
Generate PCD G-CodeCircular Chamfer G-Code
Program smooth circular chamfers and deburring paths on bore edges with custom tool offset compensation.
Generate Chamfer G-CodeXY Chamfer & Corner Radii
Calculate corner chamfer offsets, blend arcs (G02/G03), and tool center paths for milled profiles.
Generate XY G-CodeSiemens Sinumerik CNC Helper
Specialized Siemens 840D cycle parameter reference, CYCLE81/83 drill definitions, and ShopMill helper.
Open Siemens Helper3D CAD & Modeling Studio
3D CAD Studio Web Modeler
Construct CSG solid geometry, extrude 3D parts, inspect bounding boxes, and visualize workpiece stock models.
Launch 3D CAD Studio