I have just learned about the passing of Bob Warfield, the creator of CNC Cookbook. Over the years, our friendly competition helped us both improve our products. Bob's contributions to the industry have been invaluable, and I hope someone as capable and driven will continue his work. My thoughts are with his family, friends, and everyone affected by this loss.

It is very sobering and scary to realize how suddenly mortal we all are. Although I hope to have decades ahead of me, I have made changes to ensure that my customers are not left hanging should anything happen to me.

I try to not comment on things outside of my immediate area of knowledge or specialization.
But this one caught my eye and I thought it would be interesting to share with you guys.

So the news in a nutshell is Amazon applying discounts to products that third-party vendors are selling on its platform.

For example. Company "A" is selling its smartphone for $1000.
That is the price of the product on their online store and brick-and-mortar stores and other platforms like for example Amazon.

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As you may have noticed there have been changes in the look of his very web site.

Here is what has been changed and improved:

• I got tired of it's old appearance, improved layout and changed styles.
• Improved and updated social buttons throughout the website.
• Redesigned Reference page and added GD&T Interactive Reference

GD&T Reference has been available in our FSWizard Mobile app and HSMAdvisor Speed and Feed Calculator for some time now and adding it to this website was a next logical step.

There is more changes coming. But i will not tell you what those are because competition is watching :)

By the way...

When you find useful information on this website, please help others too and share it with your peers using the new social buttons!

This mainstream "social" thing has been overlooked by me in the past and not many people are aware of our great software and resources for machinists.

Spread the word and help this project do even better!

Using Peck Cycle is often needed when drilling deep holes.
When using proper feed and speed no peck is required at depths of up to 3xDia for regular or 5xDia for High-Performance Parabolic drills.
At depths up to 10x, up to 5 pecks are required for regular  drills and up to 3 for Parabolic.
Anything over 10x Dia requires constant pecking of 0.5-1x Dia for regular drills and 1.5-2 Dia for Parabolic.

Since for programming you need a peck amount. Here are the numbers:

Of course our HSMAdvisor Speed and Feed Calculator suggests not only the Speeds and Feeds but also the proper peck depth for various drill types and depths of the hole.
It in fact was the first machinist calculator to do so. This feature was much later borrowed by our competition.

And here is a pretty image showing Peck VS Hole Depth for regular twist drill:

This not only means that peck amount should be different for different styles of drills and depths of holes.
But also that peck distance should be different for different stages of drilling the same hole.
Ideally we should start the hole with large pecks, that continually reduce as the hole gets deeper and deeper.

Let's find out how we can apply this knowledge when programming our toolpaths.
This is format for normal Pecking:

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