G-Code Guru: CNC Machinist Kit
Pawel Dembski Education iPhoneiPadiPod touch
G-Code Guru: CNC Machinist Kit is a free Education app for iPhone and iPad by Pawel Dembski. Rated 5.0/5 from 7 ratings. Requires iOS 26.0.
- Rating
- 5.0
- 7 ratings
- Price
- Free
- on the App Store
- Size
- 40 MB
- Age 4+
- Updated
- Sep 28
- 2026 · v2.0.1
Screenshots
About G-Code Guru: CNC Machinist Kit
REFERENCE - 142 G-Code and M-Code entries with descriptions, examples, and usage notes - 7 controllers: Fanuc, Haas, Siemens, Mazak, Okuma, Grbl, Marlin - Search, filter by category, and save favorites for quick access CODE EDITOR - Syntax highlighting for G-Code with line numbers - Real-time validation for mills, lathes, and 3D printers catches errors before your machine does - Recognizes what kind of program you are writing and suggests the right machine type - Safety checks: spindle, tool length comp, safe Z, constant surface speed limits, feed modes, program endings - Safe code templates for mill and lathe headers, tool changes, cycles, and endings - Export programs as .nc files, ready for the controller SPEEDS & FEEDS - Milling: RPM, feed rate, chip load, material removal rate, radial chip thinning - Turning: RPM from the workpiece diameter, feed per revolution, theoretical finish, cutting and facing time, and a ready-to-paste G96 block - Materials: aluminum, steel, stainless, titanium, nickel alloys, hardened steel, cast iron, brass, plastics, composites - Speeds for HSS, carbide, ceramic, CBN, and PCD tooling - Save favorite calculation presets HOLEMAKING AND THREADING - Drilling: point length, through-hole depth, peck cycle, derating - Tapping: tap drill size, thread engagement, rigid and floating feeds - Thread milling with feed compensation and per-pass feeds - Lathe threading with a full pass plan and G76 and G92 programs TRIGONOMETRY AND CIRCLES - Right triangle solver, bolt circle generator, taper and angle calculations with lathe X and Z values - Circle G-Code generator with arc and helical output MACHINIST'S HANDBOOK - Cutting tools, inserts (CNMG, WNMG, DNMG, and more), and thread specs (UNC, UNF, Metric, NPT, BSP) - Tool holders: CAT, BT, HSK, ER collets, Morse taper, ISO turning holders with a designation decoder, VDI and BMT turrets - 384 drill sizes with tap drill and clearance hole charts - ISO 286 fits and tolerances, hardness conversion, surface finish - GD&T symbols and modifiers - 164 controller alarm codes with likely causes and what to check LEARNING PATH - 55 structured lessons across 11 modules - 163 quiz questions with immediate feedback - 15 interactive code challenges with validation - Topics: fundamentals, motion, tool management, M-codes, safety, macro programming, multi-axis, lathe, 3D printing - Track your progress and bookmark lessons KNOWLEDGE BASE - 43 in-depth articles on chip load, surface speed, tool materials, turning, threading, formulas, and best practices, linked from the calculators that use them SCAN & ANALYZE - Point your camera at a machine screen or printed program - On-device OCR extracts the G-Code - AI-powered analysis explains what the program does step by step - Safety assessment flags missing safety blocks and risky moves - Import scanned code into the editor BUILT FOR THE SHOP FLOOR - 100% offline - no internet required - Dark industrial theme, designed for iOS 26 - Works on iPhone and iPad G-Code Guru Pro unlocks the full toolkit: all 11 learning modules, unlimited saves, the complete Handbook, the Knowledge Base, calculation presets, the tapping, thread milling and lathe threading calculators, code scanning analysis, and every future update. Privacy Policy: https://gcodeguru.app/privacy Terms of Use: https://gcodeguru.app/terms
Ratings & reviews
5.0
7 ratings
What’s new
Version 2.0.1 · Updated September 28, 2026
Bug fixes and translation improvements.
App privacy
The developer, Pawel Dembski, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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