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Get Perfect Surface Finish and Tool Life
with Accurate Feedrate Calculations.

Learn the formulas behind perfect speeds and feeds. With real machining examples that help you program with confidence, not guesswork.

$19.97 $9.98

Yes, I want to calculate feeds like a pro

14-day money-back guarantee. Instant lifetime access.

Offer ends in: 30:00

Course preview

Is this you?

If youre a machinist, machine operator, or apprentice whos ever stood in front of a CNC machine wondering if the feedrate is right, youre not alone.

Youve probably been told to just "use the chart" or "copy the last program" but that doesnt always work. And most of the time, no one wants to explain how they got those numbers.

So you guess or use the numbers from a previous program.

You hope the part doesnt chatter. You hope the finish is good enough. You cross your fingers that the tool doesnt wear out halfway through the job.

But deep down, you know youre not confident in how feedrates are calculated.

That leads to:

  • Wasting time re-running parts after the first cut goes wrong
  • Poor surface finish and inconsistent results
  • Tools burning out faster than they should
  • Feeling like youre being left behind by the programmers and setup guys

I know that feeling, because I went through it too.

Back when I first started on the shop floor, no one had time to teach me the maths behind spindle speed and feedrate. I had to figure it out the hard way through trial, error, and a few expensive mistakes. It was frustrating, and honestly, it made me question whether I was ever going to get good at this.

Youre not the problem. No one ever took the time to explain it properly. Until now.

If You are Still Guessing Feed rates, You are Not Alone

Maybe you have started learning G-code, or youre picking up CAD/CAM and want to take control of your own programs.

But without a solid understanding of speeds and feeds, things feel harder than they need to.

Your parts take longer to cut than they should. The finish doesnt always come out right. Sometimes you are just outside tolerance and cant figure out why.

You find yourself second-guessing the feedrate. Copying old code. Hoping the machine runs fine without really knowing why.

And that can knock your confidence.
Even when youre doing everything else right.

When you understand how feedrate, spindle speed, chip load and cutting speed all connect, things finally start to click. You feel more in control. You stop relying on trial and error, and you start making decisions like someone who knows what they are doing.

What You Will Get Out of This Course

This isnt just about formulas. Its about confidence, control, and finally understanding what your machine is doing and why.

  • Understand the maths behind feedrate and spindle speed
  • Confidently calculate speeds and feeds for both lathes and mills
  • Master chip load, surface speed, and feed per revolution
  • Stop second-guessing and start programming with purpose
  • Feel in control of your machine, not at its mercy
  • Take ownership instead of copying someone elses numbers
  • Understand the why, not just the how
  • Learn using real shop-floor examples
  • Apply what you learn immediately with no fluff
  • Improve surface finish by using the correct feedrate
  • Extend tool life with proper cutting data
  • Build the foundation for professional-level programming
  • Save hours by getting it right the first time
  • Lifetime access, invest once, keep forever

What Other Machinists Are Saying

Real feedback from learners who have taken the course and seen results.

Every class I have taken by Marc has been far above my expectations.

John

Simple enough way if one knows the formulas for both metric and imperial which was very illustrated by Marc.

Cornelisse

The course presents good examples that help the learner understand how to calculate the cutting speed using metric and imperial values. Maths can be scary and I found this course very easy to follow and understand.

Collins

The instructor is extremely knowledgeable in all aspects of machining and programming.

Mark

Very good course, very to the point. Gives you exactly what you need and nothing more, which is what I was looking for.

Sebin

Gives great explanation of the formulas and demonstrations of their use. The flow of the subject is excellent. Every time I had a question, it was the next subject.

Robert

Here are the lessons and bonuses that you will get when you purchase this course.
Gcodetutor-logo

Lathe Speeds and Feeds

Sick of scrapped parts and worn tools? Most machinists are taught to "just feel it" but guesswork leads to poor finishes, chatter, and broken inserts.

You will learn how to calculate the perfect RPM and feedrate every time, with clear examples you can apply directly to your CNC lathe.

  • How to calculate cutting speed and spindle speed
  • Feedrate formulas that actually work on the shop floor
  • Tool life vs productivity trade-offs explained clearly

$49 Value - Yours free

Lathe training graphic

Milling Speeds and Feeds. Cut Faster, Cut Smarter

Still relying on default feeds from the CAM? Thats a fast way to snap end mills and ruin your surface finish.

This module shows you how to take control of the machine and make the right calls for every operation.

  • The critical difference between chip load and feed per tooth
  • Spindle speed and feedrate calculations for slotting, facing, and drilling
  • Adjusting speeds for different materials and coatings

$49 Value - Your free

Milling training graphic

Practice Questions + Real-World Challenges

Theory is useless unless you can use it. Thats why I added a bonus module with real-world practice questions to test your knowledge and build confidence.

  • Lathe and mill feed/speed quiz
  • Step-by-step solutions to reinforce learning
  • Mini project scenarios you can try on your own

$29 Bonus - Yours Free

Bonus practice module
Everything You Get Inside This Mini-Course

Practical, shop-floor-ready training that will pay for itself the first time you stop a tool from chattering or get a perfect surface finish.

Lathe Speeds and Feeds
$49

Yours Free

  • How to calculate cutting speed and spindle speed
  • Feedrate formulas that actually work on the shop floor
  • Tool life vs productivity trade-offs explained clearly
Milling Speeds and Feeds
$49

Yours Free

  • The critical difference between chip load and feed per tooth
  • Spindle speed and feedrate calculations for slotting, facing, and drilling
  • Adjusting speeds for different materials and coatings
Practice Questions
$29

bonus

  • Lathe and mill feed and speed quiz in both imperial and metric
  • Step-by-step solutions to reinforce learning
  • Mini project scenarios you can try on your own
Total Value: $127

Todays Price: Just $9.98

Only available for the next 30:00 mins

Mastering Speeds and Feeds

The fastest way to stop guessing and start calculating like a pro

This 60-minute mini-course teaches you how to calculate feedrates and spindle speeds for your both your lathe and milling machines. Everything is explained using real shop-floor examples, and all calculations are shown in both metric and imperial.

$9.98 $19.97
Yes, I want to calculate feeds like a pro

Instant access. Watch it in your break time. No fluff, just results.

14-day money-back guarantee. If this course doesnt improve your understanding of speeds and feeds, you get your money back. No questions asked.

Course mockup
Frequently asked questions
Have a question? I may have been asked it before.

If your question is not answered in this FAQ section, feel free to message me on my contact page.

Who is GCodeTutor?
GCodeTutor is a CNC Machine tools programming engineer called Marc who has been programming CNC machines for the aerospace industry for over 35 years.
How long is this course?
This course is around 60 minutes long broken down into bite-size videos between 4 and 18 minutes each.
Is it difficult to understand?
Machine shop maths can be a complex subject. This course is designed for beginners with no previous knowledge and is easy to understand and follow.
Is payment secure?
My courses are hosted on a platform called Teachable, the world famous course providers.

They take care of your transaction with their secure payment processors that support several different payment methods.

I want my money back!
Thats not a problem. I offers a 14-day money back guarantee on all courses and will refund you without question.