Bob Warfield

Recent Posts

Increase Tool Life, Reduce Tool Wear

This guide will show you 11 ways to radically increase your tool life and reduce tool wear. Plus it will explain the details and mechanisms of tool wear, discuss how to calculate tool wear, and describe tool life monitoring.

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37 Things G-Code Programming Can Do For You

Myth: G-Code Programming is a Thing of the Past

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Definitive Guide to Feeds and Speeds for Wood

Here’s your comprehensive guide to Feeds and Speeds for Wood, together with Tips and Techniques that are specific to cutting wood on a CNC Machine.

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Use Corner Drilling to Save Your Bacon on a Deep Pocket With Tight Corners

Deep pockets with tight radius corners are a real headache. Imagine a 2″ deep pocket that needs 1/8″ radius corners. The biggest end mill that can get in the is 1/4″. But with a 2″ deep pocket, you’re facing an end mill with an 8:1 length to diameter ratio. It’s going to want to deflect like crazy, so you’ll have to go super slow to get it done. Plus, a smaller cutter is going to have to go slow everywhere else in the pocket. The bigger the pocket, the longer this will all take.

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Don’t Gamble With Your Tools: Use Rust Protection

It’s a real heartbreaker to pull out a tool you haven’t looked at in a while and discover it has rust. Nasty stuff. I live within sight of the ocean, so my shop is particularly susceptible. That’s made me a believer in rust protection. Once rust sets in, we can clean it, but better if you never give it a toehold.

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The Complete Guide to Plunge Milling and Roughing

What Is Plunge Milling?

Have you got a tough job ahead, either because your machine is too lightweight or because of challenging geometry on the part (deep pockets, for example)? If so, maybe plunge milling (also called plunge roughing) is the answer.

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