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Browsing articles in "Beginner"

Set Up G-Wizard for Small CNC Machines

Jul 29, 2016   //   by Bob Warfield   //   Beginner, Blog, CNC Router, DIY CNC, FeedsSpeeds, Products, Software, Techniques  //  8 Comments
Runout vs Tool Life

I get asked all the time how to set up G-Wizard Feeds and Speeds Calculator for small machines that aren’t very rigid.  Folks know intuitively (or after finding out the hard way) that these machines often can’t handle feeds and speeds that are as aggressive as other heavier machines.
G-Wizard has a well-designed set of…

Bolt Circle Calculator (Free)

Jul 25, 2016   //   by Bob Warfield   //   Beginner, Blog, GCode, Manual, NewFeatures, Products, Software, Techniques  //  No Comments

Yeah, I know, that “Free” on the end of that title looks a little cheezy, LOL.  What can I say, just trying to get the word out about an important new feature in our G-Wizard Calculator.  Believe it or not, it isn’t the Bolt Circle Calculator that’s important, although it’s cool.  It’s that we’re going…

New GD&T Lesson: Flatness

Jul 24, 2016   //   by Bob Warfield   //   Beginner, Blog, Techniques  //  No Comments
GD&T Flatness

The basics have all been laid out in our Free GD&T Course.  “GD&T” stands for “Geometric Dimensioning and Tolerancing”, which is an extremely useful standard for how to specify dimensions and tolerances on drawings–obviously something very useful for CNC’ers to know.
What’s left to finish the course is to write a lesson for each of…

New and Improved: Complete Guide to CNC Mill Feeds and Speeds

Jul 16, 2016   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Techniques  //  1 Comment
Feeds and Speeds Guide

We’ve invested a lot of time and effort into our Complete Guide to CNC Mill Feeds and Speeds.  Is one of a number of in-depth Cookbooks we offer to help you become a Better CNC’er, and it was the first one we ever created.
We don’t like to rest on our laurels, so I’ve done…

What If There Was a Feeds and Speeds Calculator Specially Made for CNC Routers?

Jul 10, 2016   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, NewFeatures, Products, Software, Techniques  //  8 Comments

What if there was a Feeds and Speeds Calculator specially made for CNC Routers?  What would it do differently?
As many of you have made abundantly clear in conversations we’ve had, CNC Routers need a bunch of things that are different than what other CNC’ers may need.
Got Wood?
I used to constantly see CNC…

[Review] Unboxing the Micro by M3D: An Affordable 3D Printer

Jul 9, 2016   //   by Bob Warfield   //   3D Printing, Beginner, Blog, Products  //  3 Comments

3D Printers are cool–they’re very fun to play with.  But they have some drawbacks too.  They’re slow, the quality of the surface finish on parts you print often requires a lot of extra work to smooth out, they can be finicky unless tuned up, and they’re not incredibly cheap either for all that.
Here at…

GD&T Course: True Position (A Better Way to Tolerance a Position)

Jul 8, 2016   //   by Bob Warfield   //   Beginner, Blog, NewFeatures, Products, Software, Techniques  //  2 Comments
GD&T True Position Symbol

The latest chapter in our Free GD&T Tutorial is now available, and it is all about True Position.  This is the first of a number of chapters that will be focused on the individual symbols used for Geometric Dimensioning and Tolerancing.  The symbol for True Position is this:

The GD&T True Position Symbol…

How Big is a 2 X 4? Hint: Lumber Sizes are Deceiving and Here’s Why

Jul 8, 2016   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, NewFeatures, Products, Software, Techniques  //  1 Comment
Lumber Sizes Chart

How big is a 2 x 4?  The actual size of a 2 x 4 is about 1.5 by 3.5 inches.  In fact, it might be up to 2/16″ less than that, depending on a some important factors.
Whoa!  That’s crazy!
Now I’ve got to tell this story, just because I never knew and found…

Calculators and Reference Charts for CNC’ers Right Here!

Jul 8, 2016   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, GCode, Products, Software, Techniques  //  1 Comment

I’ve been getting a fair bit of feedback about reference information lately.  Turns out there is a ton of reference info built into G-Wizard that many people don’t know about, there’s a ton of info people would like to see me add, and there’s also a bunch of info that’s generally useful in tabular form…

GD&T Course: New Chapter on Material Conditions

Jul 5, 2016   //   by Bob Warfield   //   Beginner, Blog, Techniques  //  No Comments
material condition maximum least

Just posted the latest chapter in our Free GD&T Tutorial.  Recall we had just finished up the chapter on Plus/Minus Tolerancing last week.  That’s the approach to tolerancing most are familiar with before they learn GD&T.  This new chapter on Material Conditions talks about some interesting GD&T concepts:

Maximum Material Condition (MMC):  The condition that…

What’s Better Than a Drill Bit Size Chart With Tapping Information?

Jul 1, 2016   //   by Bob Warfield   //   Beginner, Blog, Products, Software, Techniques  //  9 Comments
what's better than a drill chart?

What’s better than a drill bit size chart?
Make no mistake: having a good drill bit size chart (sometimes called a “drill index”) is a very handy thing indeed to have around.  If it has information on which twist drill size to use for tapping, so much the better.
But in this age of computers…

GD&T Course: Plus/Minus Tolerancing

Jun 26, 2016   //   by Bob Warfield   //   Beginner, Blog, Techniques  //  No Comments

Plus/Minus tolerances to locate a hole center…
This week’s GD&T course installment is all about plus/minus tolerancing (also called limit tolerancing).  We get into how it’s done, what it means, and even how to go about choosing what tolerances you should use for parts to achieve their intended purpose and interaction with one another.  Towards…

GD&T Course: Datum Feature Simulators and Datum Selection

Jun 20, 2016   //   by Bob Warfield   //   Beginner, Blog, Techniques  //  1 Comment

A granite surface plate can be a Datum Feature Simulator…
Just uploaded another installment in our free course on the fascinating world of Geometric Dimensioning and Tolerancing (GD&T).  This one deals with:

Datum Feature Simulators:  Hint: a granite surface plate is one and we give explanations and examples of more.
How to go about choosing…

Check Out Our Massive New Guide to Vacuum Tables and Fixtures

Here’s how a typical MDF vacuum table works…
We’ve published a couple of articles on vacuum fixturing in the past and they’ve been among the most popular long term posts we’ve done.  It’s no wonder as vacuum fixturing can be extremely convenient to use.
With that in mind, we went to town researching two giant…

Slitting Saw Feeds and Speeds Plus 20 Slitting Saw Tips

Jun 15, 2016   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Manual, Products, Techniques  //  2 Comments
slitting saw arbors for ER collet chucks

Arbors for small slitting saws plug directly into ER Collet chucks.  Check our slitting saw page for more information…
I just seriously beefed up our Slitting Saw Feeds and Speeds page with a lot more information.  I added information about Slitting Saw Arbors, more pictures, and a huge number of additional slitting saw tips and…



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