MakerTune: 3D Calibration

MakerTune is a focused companion for tuning your 3D printer. Tap a tool, type two numbers, get the answer — at the printer, offline, in seconds. No tutorials, no sign-up. WHAT'S INSIDE • E-steps / steps-per-mm — corrects extruder accuracy • Extrusion multiplier (flow) — fixes walls that come out too thick or thin • Volumetric flow & max safe print speed — find your hotend's real limit • Resize for shrinkage — accurate dimensions from a calibration print • Filament: weight ⇆ length ⇆ cost, plus grams left on a spool SAVE YOUR PRINTERS AND FILAMENT Add each printer and spool once; every calculator picks the right values automatically. The more you use it, the less you re-type. FIRMWARE-AWARE Pick your printer's firmware and MakerTune shows the right way to apply each value. Marlin and RepRapFirmware get the M92 / M500 sequence; Klipper users get the rotation_distance instruction; closed firmwares (e.g. Bambu) are flagged where E-steps aren't user-adjustable. WHY MAKERTUNE • 100% on-device. No account, no sign-in, no internet required. • Every formula is based on standard, citable sources (Marlin docs, Ellis' Print Tuning Guide, Teaching Tech). • Built for the bench: clear keypad, copyable results, a Done button on every keyboard. NEW TO 3D PRINTING? The built-in Help & Learn page explains every term in plain language and links to the canonical free guides for the full walkthrough. PRIVACY MakerTune does not collect any data. Everything stays on your device.