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Browsing articles in "Techniques"

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…

5 Great CNC and 3D Printing Posts From Reddit

Jun 28, 2016   //   by Bob Warfield   //   3D Printing, Blog, CNC Projects, DIY CNC, Techniques  //  3 Comments

I’ve been spending time over on Reddit lately.  It’s a great resource that uses the Wisdom of Crowds to curate content.  What I mean by that is they not only vote content up and down, but they’re very strict about posting.  Nothing too spammy or too troll-like is tolerated.  Having dealt with some online communities…

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…

GD&T Course: Datums

Jun 13, 2016   //   by Bob Warfield   //   Beginner, Blog, Techniques  //  No Comments

Controlling 6 degrees of freedom to position and orient a part…
I just finished posting this week’s new chapter for our free GD&T (Geometric Dimensioning & Tolerancing) course.  This week’s chapter is all about Datums.  In it, we go through:

Basic definition of Datum
How they appear on drawings
Datums vs Datum Features
Datum Reference…

Quit Scrapping Parts Because They Pop Off Your Vacuum Table

Jun 13, 2016   //   by Bob Warfield   //   Blog, CNC Router, FeedsSpeeds, NewFeatures, Products, Software, Techniques  //  11 Comments

Do you use a vacuum table or vacuum fixtures?
If yes, then I know you’ve scrapped more than one part because it popped off the table due to too much cutting force breaking the vacuum.  Wouldn’t it be great to have a quick and easy way to stop that from happening?
I get all my…

What Do Food Trucks, CNC, and Makers Have in Common? Hint: Ask Anthony Bourdain

Jun 7, 2016   //   by Bob Warfield   //   Beginner, Blog, Business, CNC Projects, Cool, Manufacturing, Techniques  //  2 Comments

Why should we be excited about Makers and Hobby CNC’ers?
I just saw this great quote from Anthony Bourdain on Food Trucks over on Scott Johnson’s blog, and it really hit home for me as a CNC’er and Small Business Entrepreneur:
“Why should you be excited about food trucks? Because they allow creative chefs […]…

A New Cookbook is Born: Check Out Our GD&T Tutorial

Jun 6, 2016   //   by Bob Warfield   //   Beginner, Blog, Techniques  //  1 Comment
GD&T Terminology

Geometric Dimensioning and Tolerancing: GD&T
We’ve just launched our new Geometric Dimensioning and Tolerancing (GD&T) Cookbook.  It’s a free tutorial on GD&T.  We’re just getting started, so there are only two chapters there so far.  But, we’ll add a new one every week and before long we’ll have a very complete GD&T tutorial that’s completely…

21 Ways to Maximize Your Odds At Lights Out Machining

May 31, 2016   //   by Bob Warfield   //   Blog, Business, Manufacturing, Techniques  //  2 Comments

Lights Out Machining: Huge Advantages But Hard to Achieve…
What is Lights Out Machining and Why Care?
Lights Out Machining: Holy Grail of productivity for some, scary unexplored territory for others.  Lights Out means manufacturing processes that are fully automated and require no human presence.  That’s the 100,000 foot view, but of course every process…

IOT and the Biggest Challenges to Data-Driven Manufacturing, Part 1

May 23, 2016   //   by Bob Warfield   //   Blog, Business, Manufacturing, Software, Techniques  //  4 Comments
IoT and Factory Automation

I read with interest Willy Shih’s (Professor of Management Practice at Harvard) and Helmuth Ludwig’s (EVP at Siemens PLM Software) article in the Harvard Business Review on the Biggest Challenges of Data-Driven Manufacturing.  In it, they discuss the idea that Data-Driven Manufacturing and the widespread deployment of low-cost sensors connected to the Internet (the so-called…

Powerful Hybrid Turning/Milling on a VMC Done Cheap

May 20, 2016   //   by Bob Warfield   //   Blog, Cool, Products, Techniques  //  3 Comments

Ever used your VMC to turn parts?  Not so much I bet.  A lot of CNC Lathe users, OTOH, have probably milled parts, provided they have live tooling.  In fact, I’ve talked to many who prefer to mill on their lathes when the nature of the part makes it possible.  A lathe with bar feeder…

The Ugly Secret About Post Processors Plus 8 Custom Post Processor Ideas

May 14, 2016   //   by Bob Warfield   //   Beginner, Blog, GCode, Manufacturing, Products, Software, Techniques  //  No Comments
What is a Post Processor?

What is a Post Processor?
Post Processors are an essential part of any CAM Software, but they’re one of those things most CNC’ers know just a little about but not a lot.  I’ve just added a new chapter to our Free G-Code Tutorial Course that’s totally focused on Post Processors.
It covers the following:

What…

 

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