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Browsing articles in "Beginner"

How Can I Figure Out What Tool to Use on My CNC Mill Or Router? (Part 3: Pocketing)

May 10, 2016   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Products, Software, Techniques  //  No Comments

In Part 3 of our series on how to select the right CNC Cutter we’ll be talking about pocketing.
What are Pockets?
Pockets are cavities in the top of the part.  Or, at least the face that’s on top during the milling process.  They can have a floor, or they can be open by piercing…

7 Great Books For Your CNC Library

Apr 28, 2016   //   by Bob Warfield   //   Beginner, Blog, Products, Techniques  //  9 Comments

I must admit: as much as I value the Internet and online resources, I still like books for a lot of things too.  Accordingly, I have a large library on CNC and Machining topics that I use to help me research a lot of what I write for CNCCookbook.  I thought you might like to…

How Can I Figure Out What Tool to Use On My CNC Mill Or Router? (Part 2: 2D Profiling)

Apr 26, 2016   //   by Bob Warfield   //   Beginner, Blog, Techniques  //  1 Comment

Profiling the outside of these parts…
This is Part 2 of our series on how to select the right CNC cutter for whatever job you’re doing.  We talked about choosing cutters for holes in the first installment.  In this article, I’m going to talk about selecting cutters for 2D Profiling.
What is 2D Profiling?
Think…

8 Ways to Locate Part Zero on Your CNC Machine

Apr 25, 2016   //   by Bob Warfield   //   Beginner, Blog, Techniques  //  17 Comments

One of the first things you have to do before you can begin machining a part is to tell the machine where part zero is.  Part Zero is the datum corresponding to the 0, 0 coordinate on the CAD drawing that you used for all your CAM work or to generate the g-code for your…

How Can I Figure Out What Tool to Use On My CNC Mill Or Router? (Part 1 – Holes)

Apr 19, 2016   //   by Bob Warfield   //   Beginner, Blog, Products, Techniques  //  5 Comments

I get this question from time to time, and all beginners are going to have it when they first start out:

How can I figure out which tool to use?

For this article, let’s stick to CNC Mills and Routers, and be aware that a Router is really just another name for a particular type…

Here’s The Scoop on Which Machines Hobby CNC’ers Have And What They’re Making

Apr 7, 2016   //   by Bob Warfield   //   3D Printing, Beginner, Blog, CNC Router, Cool, DIY CNC, Products  //  3 Comments

I launched a survey a few days ago and we’ve already had over 300 responses as I write this–clearly there’s a lot of passion amongst the Hobby CNC crowd.  I can’t blame them–I love CNC and every aspect of it.
Here’s what we found out:
What kinds of CNC machines do you own?

CNC Mills…

What Machines Do CNC Hobbyists Own And What Do They Build With Them?

Apr 3, 2016   //   by Bob Warfield   //   Beginner, Blog, CNC Projects  //  No Comments

If you’re a CNC Hobbyist who owns their own CNC Machine, please take a few moments to answer our quick survey.  We want to find out and share with our readers what kinds of CNC Machines hobbyists own and what they’re doing with them.
>> Click to Take the CNC Hobby Machine Survey <<…

Great Video on Varying Spindle Speed to Control Chatter

Feb 29, 2016   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Techniques  //  No Comments

SSV can really help control chatter when turning…
Hat tip to Tom for bringing this video to my attention.  In it, Haas describes their “SSV” (Spindle Speed Variation) feature to control chatter.  They also give the best discussion I’ve seen of how diameter affects surface speed when turning (smaller diameters have to run faster just…

G75 and Peck Parting Off For Lathes

Feb 17, 2016   //   by Bob Warfield   //   Beginner, Blog, GCode, Techniques  //  7 Comments

For whatever reason, parting off seems to be the operation on lathes that causes the most people trouble.  Perhaps deep boring operations where the bar is really hung out there is a close second.
Parting off is definitely a challenging operation when you look at it mechanically.  You’re going to take a fairly tiny cutter…

11 Feeds and Speeds Considerations for Lightweight CNC Routers

Feb 9, 2016   //   by Bob Warfield   //   Beginner, Blog, CNC Router, FeedsSpeeds  //  No Comments

Today’s lightweight CNC Routers are capable of some truly amazing work…
I got a note recently from a new G-Wizard Calculator user who is also a CNC beginner.  He has a lightweight CNC Router and was about to make his first cuts.  He wanted to know if I had any special suggestions for him before…

7 Machines to Start Your CNC Journey Today (Infographic)

Feb 6, 2016   //   by Bob Warfield   //   Beginner, Blog, Products  //  4 Comments

Have you been itching to try your hand at CNC? Well, you’re going to need a CNC machine to get started with. Here’s your chance:

For more resources to help you get started with CNC, try our CNC Beginner’s Cookbook.
 …

Tormach 440 Spotted in the Wild

Feb 4, 2016   //   by Bob Warfield   //   Beginner, Blog, CNC Projects, Cool, Products  //  1 Comment

I was just over at Santa Cruz Electronics, our local Tormach dealer in Northern California, when I happened to spy a happy little CNC mill in their back room.  Seems they’d just taken delivery on one of the new Tormach 440’s.  I have to say, it is just the cutest little CNC mill ever, and…

37 Things Your CAM Won’t Do For You That GCode Programming Can

Jan 19, 2016   //   by Bob Warfield   //   Beginner, Blog, GCode, Manufacturing, Software, Techniques  //  4 Comments

The reports of my death are greatly exaggerated — Mark Twain
Myth: G-Code Programming is a Thing of the Past
Reality:  G-Code Programming Compliments CAM Extremely Well
Like Mark Twain sort of said, “The reports of GCode’s death are greatly exaggerated.”  Even MMSOnline agrees that the idea G-Code programming by people instead of CAM software…

What’s An Entry Level CNC Machine Capable Of?

Jan 12, 2016   //   by Bob Warfield   //   Beginner, Blog, CNC Projects, CNC Router  //  5 Comments

I’m fond of saying there’s not much you can’t make with a CNC machine, but I’ve got access to some pretty nice hardware.  People want to know what it all costs and what can someone just getting started do.  The answer is not much different.  If you’re patient and can work around the limitations of…

All About Wood Types and Feeds and Speeds for CNC Routers and Mills

Dec 29, 2015   //   by Bob Warfield   //   Beginner, Blog, CNC Router, FeedsSpeeds, Software  //  2 Comments

I get asked fairly often why there are so few wood choices in G-Wizard Calculator’s Material Database, or how to convert wood hardness to Brinell to tell G-Wizard about the differences in hardness for various kinds of wood.  After all, there are probably a couple of hundred different choices for Steel including all the alloys…

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