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Browsing articles in "FeedsSpeeds"

Are You Still Ignoring Tool Deflection? [We Can Help!]

May 22, 2017   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Software, Techniques  //  No Comments

Are you still ignoring Tool Deflection?  You’re not alone–many CNC’ers do.  But it hurts their tool life and surface finish something fierce.
I just did a video for Cutting Tool Engineering magazine that was totally focused on Tool Deflection.  In it, you’ll learn:

What tool deflection is
How it hurts tool life
How much you…

Best CNC Router Speeds and Feeds Calculator

May 15, 2017   //   by Bob Warfield   //   Blog, CNC Router, FeedsSpeeds, Software, Techniques  //  2 Comments
cnc wood router

I had a customer contact me recently to talk about Speeds and Feeds for CNC Routers.  It was an interesting conversation because he really wanted to understand what it takes to have the Best CNC Router Speeds and Feeds Calculator.  In explaining it to him, I felt the best approach was to consider a combination…

[Breaking News] More Useful Calculators for CNC’ers and Machinists!

May 7, 2017   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Manual, NewFeatures, Software, Techniques  //  No Comments
training to improve

Our mission?  Helping everyone to be Better CNC’ers.
Honestly, we’ve been on a mission for a long time to help anyone who wants to be a Better CNC’er.  Whether you’re a Beginner trying to get your arms around the basics, or a seasoned Pro who never stops improving your game, we’ve got the goods.
Part…

Parabolic vs Standard Flute Twist Drills = Better Performance

May 2, 2017   //   by Bob Warfield   //   Blog, FeedsSpeeds, Techniques  //  10 Comments

What Is a Parabolic Flute Drill?
The term “Parabolic Flute” applies to a specific geometry for a twist drill.  The geometry is altered to improve chip extraction, which leads to all sorts of advantages for Parabolic Drills:

Reduces the need for a peck cycle except on deepest holes.
Allows increased feed rates for better manufacturing…

45 or 90 Degree Face Mill – Which Gives Better Results?

Apr 25, 2017   //   by Bob Warfield   //   Blog, FeedsSpeeds, Manufacturing, Products, Software, Techniques  //  5 Comments
45 and 90 degree face mills

45 or 90 Degree Face Mill – Which gives better results?
First, what are we talking about when we say 45 or 90 degrees?  The answer is fairly obvious from the photo above comparing two Glacern Face Mills.  Take a look at the angle of the cutting edge on the inserts.
Yes!  The angle is…

Video: Runout — The #1 Tool Life Issue for Micromachining

Apr 18, 2017   //   by Bob Warfield   //   Blog, FeedsSpeeds, Manufacturing, Products, Techniques  //  No Comments
micromachining runout

Check out the latest video in my monthly “CNC Chef” series for Cutting Tool Engineering Magazine:

In this video I talk about runout in depth and it’s impact on tool life when micromachining.  You’ll learn about:

What is the definition of Micromachining?
What are the applications of Micromachining?
How the physics of cutting change at…

Big Guide: 17 Tips for Minimizing Breakage When Micromachining and More

Apr 10, 2017   //   by Bob Warfield   //   Blog, FeedsSpeeds, Manufacturing, Techniques  //  2 Comments
micromachining

Here at CNCCookbook, we do extremely in-depth research on our articles.  We want to be sure that when we publish a guide to something, we’ve done as much of the work for you as possible.  We’re pretty good at it, or we wouldn’t see 4.5 million CNC’ers visiting our site every year–roughly the same as…

CNC Software Sale Ends This Friday, April 14th!!!

Apr 7, 2017   //   by Bob Warfield   //   Blog, Business, FeedsSpeeds, GCode, Products, Software  //  2 Comments

Good news, I’m extending our Spring Sale one more week–it ends Friday, April 14.
Until then, you can save 15% off every piece of CNC Software we offer.  Some of the best deals are listed on our CNC Software Sale page.
Remember, the sale prices don’t show up until you get into the shopping cart,…

Easy Multiple Spindle Options for G-Wizard

Mar 24, 2017   //   by Bob Warfield   //   Blog, CNC Projects, DIY CNC, FeedsSpeeds, Software, Techniques  //  No Comments
auxilliary high speed spindle

It’s fairly common to find machines that have multiple spindle options available.  I don’t mean that you can specify multiple, options, but that there are actual multiple options delivered with the machine.  A very simple example would be multiple pulley ratios.  More exotic would be sub-spindles, for example a high-speed auxiliary spindle or speeder on…

G-Wizard Bonus: Lifetime Free Features – You Savvy?

Mar 18, 2017   //   by Bob Warfield   //   Beginner, Blog, Cool, FeedsSpeeds, NewFeatures, Products, Software, Techniques  //  No Comments

We do a terrible job advertising it, but most of G-Wizard Calculator is free.  Seriously.  You sign up for the 30-day 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…

[CNC Chef Video] Chip Thinning: Clear and Present Danger if Ignored

Mar 14, 2017   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Software, Techniques  //  No Comments
radial chip thinning formula

Just launched my this month’s video with Cutting Tool Engineering for my “CNC Chef” column (a playful reference to the CNCCookbook).  In the first video, I covered the subject of Tool Rubbing.  It comes as a surprise to some that if you try to slow down a cut too much, it is actually much worse…

New Optional G-Wizard Calculator Release Available

Mar 7, 2017   //   by Bob Warfield   //   Blog, FeedsSpeeds, Products, Software  //  3 Comments

I just uploaded G-Wizard Calculator version 3.83.  This is an optional release, PC only (not Mac), which means I won’t be turning on the auto-update right away.  I do optional releases when I want folks who want the latest and greatest to check things out a bit before the mainstream gets hold of it.  If…

G-Wizard’s Tips: Your Expert Mentor and Assistant

Mar 2, 2017   //   by Bob Warfield   //   Blog, FeedsSpeeds, NewFeatures, Software, Techniques  //  No Comments

Personalized service, advice, and mentorship is great.  Having the hotel concierge advise you on the best place to find food you’ll like in a city that’s new to you can really make for a memorable dinner.  Having a good friend who’s been doing CNC for their entire career and is a master can really help…

When to Use a Spot Drill + 7 Useful Tips and Techniques

Feb 27, 2017   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Techniques  //  21 Comments
Spot Drill

Machinists are familiar with spot drills–they’re stub length and have little or no flutes.  These little drills are designed to be extremely rigid so that they can precisely spot a hole for a twist drill.  Maximum meat in the shank keeps them on target.  The goal is use the spot drill to make a little…

Breaking News: “CNC Chef” Video Series Launched With Cutting Tool Engineering

Feb 20, 2017   //   by Bob Warfield   //   Blog, Cool, FeedsSpeeds, Software, Techniques  //  7 Comments
CNC Chef

I am excited to announce that I’ll be doing a new monthly video series with Cutting Tool Engineering called the “CNC Chef” (a playful reference to the CNCCookbook).  In our first video, I cover the subject of Tool Rubbing.  It comes as a surprise to some that if you try to slow down a cut…

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