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Browsing articles in "Beginner"

Learn What the Angularity Symbol Means in GD&T Plus New Calculator

Nov 15, 2016   //   by Bob Warfield   //   Beginner, Blog, Manufacturing, Techniques  //  No Comments
angularity GD&T symbol

I just uploaded another installment to our Free GD&T Tutorial.

Angularity callout on a drawing…
Geometric Dimensioning and Tolerances is a methodical and scientific way to specify tolerances on your drawings.  It tells in a concise symbolic way how much your parts can deviate from the geometric ideal.  If you do much CNC work, you’re…

2 Tools for Optimizing CNC Milling Cut Depth and Cut Width/Stepover

Nov 8, 2016   //   by Bob Warfield   //   Beginner, Blog, Cool, FeedsSpeeds, Manufacturing, Products, Software, Techniques  //  3 Comments

The depth of cut and width of cut (also called stepover) are crucial variables when milling pockets, profiling, facing, and any other machining operation where you’ll be cutting with the flutes on the side of an endmill.  Aside from the machine’s capabilities, the material, and a description of the tool to be used, they’re the…

Learn What the Parallelism Symbol Means in GD&T

Oct 24, 2016   //   by Bob Warfield   //   Beginner, Blog, Manufacturing, Techniques  //  No Comments
GD&T Parallelism Symbol and Callout

I just uploaded another installment to our Free GD&T Tutorial.

Parallelism callout on a drawing…
Geometric Dimensioning and Tolerances is a methodical and scientific way to specify tolerances on your drawings.  It tells in a concise symbolic way how much your parts can deviate from the geometric ideal.  If you do much CNC work, you’re…

Check Out the New Perpendicularity Chapter in our Free GD&T Course

Oct 17, 2016   //   by Bob Warfield   //   Beginner, Blog, Manufacturing, Techniques  //  No Comments
Axis Perpendicularity

I just uploaded the chapter covering the Perpendicularity Symbol in our Free GD&T (Geometric Dimensioning and Tolerancing) Course.
There are two varieties of Perpendicularity.  Axis Perpendicularity (the callout is pictured above) controls whether the axis of the features stays within an ideal cylinder of a specified diameter aligned on the same axis.  Surface Perpendicularity tells…

Getting the Best Performance from ER Collet Chucks

Oct 11, 2016   //   by Bob Warfield   //   Beginner, Blog, Techniques  //  22 Comments
Tool tightening fixture

Short of much fancier and more expensive solutions, ER Collets are one of the best toolholding systems available. Consider this comparison from our Ultimate Guide to Selecting Toolholders for Milling:

ER Collet Chucks are inexpensive and can really do the job as long as we’re not talking super heavy duty or very high rpm applications.  …

39 Feeds and Speeds Hacks, Tips, and Techniques

Sep 26, 2016   //   by Bob Warfield   //   Beginner, Blog, CNC Router, FeedsSpeeds, Products, Software, Techniques  //  2 Comments

Breaking Through Roadblocks

Sometimes you just get stuck…
Sometimes you just get stuck.  You need to do something and it doesn’t look like it’s possible.  We’ll start with a series of hacks for those situations.
#1-#3 My Spindle Won’t Run Slowly Enough for the Material and Tooling I Need
This problem happens particularly often if…

Making It Absurdly Easy to Get Started With G-Wizard Calculator

Sep 24, 2016   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Products, Software  //  1 Comment
g-wizard social login

OK, granted, “Absurdly Easy” might be exaggerating things a bit, but I try to constantly make G-Wizard easier for everyone.  Lately, I’ve been working diligently on the very beginning of the process.  Many will have noticed the recent appearance of a brand login popup and with the latest release I uploaded there is now a…

Cylindricity: Another Installment in Our Free GD&T Course

Sep 19, 2016   //   by Bob Warfield   //   Beginner, Blog, Manufacturing, Techniques  //  No Comments
Cylindricity GD&T Symbol

I just uploaded the chapter covering the Cylindricity Symbol in our Free GD&T (Geometric Dimensioning and Tolerancing) Course.
Cylindricity defines how far the shape may differ from an ideal cylinder, so it is a very useful tolerance that’s common to use.
“What’s this Geometric Dimensioning and Tolerancing?”, you ask.  The short answer is that it…

Top 19 Most Interesting Pages on CNCCookbook=[Pure CNC Pleasure]

Most Interesting CNCCookbook Articles

What are the 11 Most Interesting Pages on CNCCookbook, and how would I know?
There are a LOT of articles here on CNCCookbook.  We get 3 million visitors a year checking out roughly 2000 different articles.  To be interesting, we figured a page should draw the reader on as well as keeping their interest.  So,…

Total Beginners Guide to Feeds and Speeds, Part 2

Sep 7, 2016   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Guest-Post, Software, Techniques  //  No Comments
Sweet Spots for Feeds and Speeds

Part 2 of my super simple course on Feeds and Speeds for Beginners is up over on the Carbide3D Blog. Yes, that’s right, I guest posted over on their blog.
In Part 1 (also guest posted at Carbide3D), I went over the “Speeds” part of Feeds and Speeds.  That is, I talked about how to…

Announcing a New Deep Learning Guide for CNC Beginners

Sep 6, 2016   //   by Bob Warfield   //   Beginner, Blog, Cool, Manufacturing, Techniques  //  1 Comment
Step by step guide to making CNC parts for beginners

You’ve got a vision for a part you want to make…
You’ve got a vision for a part you want to make.  You’ve been lusting after your own CNC Machine for a long time.  You just want to put the two together, but try as you might, there’s no map to guide you.  No article…

Circularity: Another Chapter in the Free GD&T Course

Aug 28, 2016   //   by Bob Warfield   //   Beginner, Blog, Manufacturing, Techniques  //  1 Comment
Circularity (Roundess) callout

I just uploaded a chapter covering the Circularity Symbol in our Free GD&T (Geometric Dimensioning and Tolerancing) Course.
Circularity, as you would expect, is commonly used for circular parts such as cylinders, cones, and spheres.  It’s important when the parts must move smoothly and with a minimum of wear, so for example, one might want…

Have You Heard How CNCCookbook Helps Schools and Educators?

Aug 28, 2016   //   by Bob Warfield   //   Beginner, Blog, Techniques  //  No Comments
Schools using CNCCookbook

Since we’re running a Back to School sale (ends next week!), I wanted to talk a bit about how CNCCookbook helps Schools and Educators.
For the curious, we’ve put together a list of the well over 350 Schools have used CNCCookbook’s software.  You’ll see that our list includes many of the biggest names in education.…

Keep Your Tools Safe With a New Tool Check-In Procedure

Aug 24, 2016   //   by Bob Warfield   //   Beginner, Blog, DIY CNC, Products, Techniques  //  2 Comments
Rust preventative

I like new toys as well as the next guy, so I try to take reasonable care of them. Towards that end, I’ve adopted a standardized “check-in” procedure for my shop. When a tool arrives, it is logged into an Excel spreadsheet. I have pages for tooling, consumables (cutters, abrasives, fluids, etc.), and stock (aluminum,…

7 Sweet Tricks and Setups for a Steam Engine Project

Aug 19, 2016   //   by Bob Warfield   //   Beginner, Blog, Manual, Techniques  //  No Comments
Stacked Part Fixturing

I get asked all the time by beginners, “How can I learn about fixturing?  How can I pick up all the neat tricks experienced machinists know?”
My answer is that encourage them to always be on the lookout–scrutinize every photo when they see a thread on a forum about some project to see what tricks…

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