We do a terrible job advertising it, but most of G-Wizard Calculator is free. Seriously. You sign up for the free trial, and when that ends, even if you don’t purchase, most of the tabs will go right on working for you. There’s a giant treasure trove of useful calculators, utilities, and reference information there including:
- Fancy scientific calculator with automatic unit conversions and much more.
- The ultimate productivity hack for busy people–the same ToDo list with Pomodoro timer system I use myself to get all this crazy stuff done for CNCCookbook.
- Geometry and Trig Calculators for Right Triangles, Oblique Triangles, Bolt Circles, Dovetails, Tapers, Chamfers, Drilling, Chords, True Position, Points, Turner’s Cubes
- Fits and Tolerances for ISO 286, ANSI B4.2, and DIN 7172
- Thread Database with all the dimensions, tapping drills, and more
- Drill Chart
- Fastener Database with dimensions for Socket Head and Flat Head Cap Screws
- Weights and Volumes for standard metal structural shapes as well as standard lumber sizes
- Thermal Expansi0n Calculator
- Electrical Ohms Law Calculator
- Resistor Color Codes
- CNC Servo and Stepper Motor Sizing Calculators
- G- and M-Code Quick Reference
- Hardness Quick Reference with Rockwell (A, B, C, D, 15H, 30H, 45N), Brinell (Std, Hultgren, Tungsten), Vickers, and Shore scales
- Rigidity Calculator to help figure your tool rigidity
- Chatter Calculator to figure the right spindle speed to stop chatter
- Geometric, Dimensioning, and Tolerancing Quick Reference
Phew! I can hardly keep up with all of it myself. I know there a lifetime subscribers who are still delighted at the new things they discover. And we just keep adding more all the time!
I thought I’d make a quick video showing how it all works:
All of this will save you time digging through machinery’s handbook or trying to Google for it. It’s all stuff that I use constantly and you will love having it at your fingertips. So what are you waiting for–give the G-Wizard free Trial a try:
PS This just gets better if you do subscribe.
First, you have the choice of buying the software outright (lifetime subscription) or subscribing. Now I hear all the time from hobbyists who don’t think they can afford G-Wizard. First thing is that one year is cheap–not much more than a single cutter costs. But okay, let’s suppose you still think that’s too expensive. The thing is, at the end of that 1 year, Feeds and Speeds keep right on working too.
What’s the catch?
The catch is that once the subscription expires, there’s a spindle power limit equal to 1 horsepower for each year you subscribe. This is perfect for a hobbyist. A small CNC Router may not be able to use more than a 1 horsepower cut–tiny machines just aren’t rigid enough. That means a lifetime of Feeds and Speeds, limited to 1 HP, for just the cost of 1 year of subscription. It’s perfect for the hobbyist trying to save.
And, if you ever get a more powerful machine, just re-subscribe to unlock the limit. No muss, no fuss.
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Bob is responsible for the development and implementation of the popular G-Wizard CNC Software. Bob is also the founder of CNCCookbook, the largest CNC-related blog on the Internet.