# LaserCalib Pro - Machine & Rotary Engineering Specification
> High-precision rotary calibration, tapered tumbler warp calculations, and kerf test comb generation for LightBurn, xTool XCS, GRBL, and Ruida controllers.
> Canonical URL: https://lasercalib.com

## Core Capabilities
- Steps-Per-Rotation (SPR) & Pulses-Per-Revolution Calculator for Chuck & Roller rotaries.
- GRBL $101 axis-scaling calculator with copyable G-code commands and flat-bed reset commands.
- Conical warp, tilt-angle leveling, and arc-geometry generator for tapered drinkware (tumblers, pint glasses, wine cups).
- True-scale SVG generators for 20x100mm rotary calibration rulers, conical cut templates, and laser kerf slot-fit test combs.

## Rotary Formulas
- Corrected SPR = (Current SPR * Commanded Test Distance) / Actual Measured Distance
- Corrected GRBL $101 = (Current $101 * Commanded Test Distance) / Actual Measured Distance
- Tumbler Leveling Tilt Angle = asin(((Top Diameter - Bottom Diameter) / 2) / Slant Height) * (180 / PI)
- Conical Arc Outer Radius (R) = (Top Diameter / (Top Diameter - Bottom Diameter)) * Slant Height
- Conical Arc Inner Radius (r) = R - Slant Height
- Conical Sector Angle (theta) = (Top Diameter / (2 * R)) * 360 degrees
- Measured Kerf = (Outer Square Measured - Inner Cut Hole) / 2
- LightBurn Kerf Offset = Measured Kerf / 2

## Machine Database
Features 18 laser models including xTool P2S, P3, F1 Ultra, F2 Ultra, S1, M1 Ultra, D1 Pro, Creality Falcon2 Pro, OmTech Polar 350, OmTech 60W/80W, Monport 40W/60W, Sculpfun S30 Ultra, Atomstack A20/A40 Pro, Ortur LM3, Bambu Lab H2D, WeCreat Vision, Roly LaserMATIC Mk2, Thunder Laser Bolt.