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Browsing articles in "Techniques"

How to Create a CAM Package Short List + More CAM Survey Info

Feb 1, 2017   //   by Bob Warfield   //   Blog, GCode, Products, Techniques  //  No Comments
cam package visibility

Fellow CNC’ers, there’s still more information to be gleaned from our CNCCookbook 2016 CAM Package Survey, it just takes a while to crunch all the numbers with so many folks having responded.
So far, we’ve covered:

Market Share
Customer Satisfaction Awards

This week I want to delve a little bit into the murky process that…

Feedrates for Entering Cuts and Other New G-Wizard Features

Jan 31, 2017   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, NewFeatures, Products, Software, Techniques  //  1 Comment
feeds and speeds for plunging

I just uploaded G-Wizard Calculator version 3.72 and it includes some very cool new capabilities.
Let’s start with something that every CNC’er deals with on virtually every new feature while using their CAM System:
What Feedrate Should I Use to Enter a Cut Using a Helix, Ramp, or Plunge?
Yup, CNC’ers deal with this quite…

Scary Vacuum Fixture Mishap and Some Possible Cures

Jan 17, 2017   //   by Bob Warfield   //   Blog, Cool, FeedsSpeeds, Products, Software, Techniques  //  13 Comments
vacuum fixture cnc crash

I jumped about two feet when this plate broke loose from the vacuum fixture while the pocket floor was being machined:

He had actually dialed things back quite a bit to try to keep it happy, and I would have thought the majority of the worst cutting forces were done, but the part still broke…

Learn How to Tolerance Circular Runout in GD&T

Jan 17, 2017   //   by Bob Warfield   //   Beginner, Blog, Manufacturing, Techniques  //  No Comments
circular runout gd&T

I just uploaded another installment to our Free GD&T Tutorial, and this article explains the Circular Runout symbol.

Circular Runout tolerance on a drawing…
Circular Runout is a fairly common GD&T symbol.
Geometric Dimensioning and Tolerances is a methodical and scientific way to specify tolerances on your drawings.  It tells in a concise symbolic way…

Which CNC Skills Give You An Advantage Over Others?

Jan 9, 2017   //   by Bob Warfield   //   Blog, Business, Manufacturing, Techniques  //  1 Comment
cnc skills

Did you ever hit a tough problem in the shop, one where nobody seemed to know what to do, and all of a sudden someone came forward and saved the day?
Those kind of incidents are what elevate some players over others in the workplace.  Nothing like saving the bacon because you have some scarce…

5 Awesome Ways to Use a GCode Editor Simulator With CAM

Jan 7, 2017   //   by Bob Warfield   //   Beginner, Blog, GCode, Software, Techniques  //  1 Comment
how many cnc'ers know gcode?

I get asked this question a lot:
Why would I need a GCode Editor Simulator when I’ve got CAM and it has a Simulator too?
For many CNC’ers, they think CAM means they’ll never need or want to deal with g-code. So why would they ever consider having a G-Code Editor / Simulator like our…

The Ultimate Feeds and Speeds Cheat Sheets (and More)

Jan 4, 2017   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Products, Software, Techniques  //  1 Comment
feeds and speeds cheat sheet

Do you use cheat sheets?
You know, those little pieces of paper or charts where you cram in a quick summary of everything you need to know to solve some type of problem quickly.  Man, I got through college on my cheat sheets!
Now hang on, before you start thinking I was actually cheating, our…

How Good Machinists Hold Tight Tolerances on Worn Out Old Machines

Dec 29, 2016   //   by Bob Warfield   //   Blog, Manufacturing, Techniques  //  1 Comment
old worn out cnc machine tolerances

Even an old worn out machine can hold decent tolerances for the right machinist.  Well, maybe not this old and worn out!
One of the great things about my job is I’m in contact with a lot of machinists from all walks–high-end aerospace, mom and pop job shops, prototype and model shops, hobbyists and so…

What Every CNC’er Needs to Fix CAM Glitches Quickly and Easily

Dec 20, 2016   //   by Bob Warfield   //   Blog, GCode, Software, Techniques  //  1 Comment
cam glitch

I was recently reading a post on one of the boards and came across a fellow who was having a problem with Fusion 360:

Control view on the left, CAM on the right: see the problem?
The controller view of the toolpath is on the left and the CAM view is on the right.  Do…

Learn How to Tolerance Total Runout in GD&T

Dec 12, 2016   //   by Bob Warfield   //   Beginner, Blog, Manufacturing, Techniques  //  No Comments
total runout symbol callout GD&T

I just uploaded another installment to our Free GD&T Tutorial, and this article explains the Total Runout symbol.

Total Runout tolerance on a drawing…
Because Total Runout is such a tight control over every point on the surface, it is less commonly used than Circular Runout. Even so, it is still a fairly common GD&T…

14 Great Ideas for 4th Axis Fixtures to Save Time

Dec 7, 2016   //   by Bob Warfield   //   Blog, CNC Projects, Manufacturing, Techniques  //  1 Comment
Fourth Axis Fixture

Our recent article that showed the math behind using 4th axis to increase your work area was very popular, so I thought I’d follow up with a bunch of pictures of fourth axis fixtures.  Hopefully these will give you some ideas you can use!

A quick way to access a lot of small parts with…

Learn How to Tolerance Cross Sections of Complex 3D Surfaces in GD&T

Dec 5, 2016   //   by Bob Warfield   //   Beginner, Blog, Manufacturing, Techniques  //  No Comments
Profile of a Line GD&T callout Geometric Dimensioning Tolerancing

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

Profile of a Line 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…

How Do Tombstones Increase Your Work Area on a VMC With 4th Axis?

Dec 2, 2016   //   by Bob Warfield   //   Blog, Manufacturing, Products, Techniques  //  2 Comments
tombstone 4th axis vmc tormach

A tombstone with fixtures on all four sides set up on a Tormach CNC Mill…
I was reading an article about Tombstones in the Tormach blog recently and it got me to thinking about how Tombstones on VMC’s can make a job more profitable.
Tombstones are par for the course on Horizontal Machine Centers, but…

5 Ideas for Schools With Limited CNC Resources to Maximize CNC Training

Nov 30, 2016   //   by Bob Warfield   //   Blog, CNC Projects, Software, Techniques  //  No Comments
Cheap CNC Machine

At CNCCookbook, we have a LOT of educational customers, and we give them a nice educational discount on our software.
I got a note from a school wanting to know how they can maximize their CNC Training the other day.  The problem is that they have 1 CNC Mill and 1 CNC Lathe (plus 6…

How Many Days Since You Broke a Haimer Tip? (1 Day for Me!)

Nov 27, 2016   //   by Bob Warfield   //   Blog, Cool, Products, Techniques  //  2 Comments

So there I was, standing at the VMC, showing my son and his friends (home from college for Thanksgiving break) how the thing worked.  We were going to finish an 80% lower as a nice easy project that would be fun and interesting for them.  They were eager to check it out.  First job was…

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