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 CalculatorUniversal Triangle Solver
Solve any right or oblique triangle (SSS, SAS, ASA, AAS, SSA). Compute perpendicular altitudes, medians, segment splits, and area.
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