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Browsing articles in "FeedsSpeeds"

Using Manufacturer’s Data in G-Wizard for Feeds and Speeds

May 24, 2012   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Software  //  2 Comments
G-Wizard Feeds and Speeds Calculator

The latest release of the G-Wizard Machinist’s Calculator includes a new feature to make it even easier to use Manufacturer’s Data for your feeds and speeds calculations.  Take a look at the screen shot:

G-Wizard Feeds and Speeds Calculator
Notice the new area right above the HSM Toolpath section that has the label “Mfg’s Surface…

G-Wizard Calculator v1.641 is a Feature Release

May 21, 2012   //   by Bob Warfield   //   Blog, FeedsSpeeds, Software  //  No Comments

Here’s what’s new in 1.641:
– Added the ability to enter Manufacturer’s recommended chipload and surface speed right on the front page of G-Wizard. I’ll be doing a revised video and updating the docs shortly to describe how to use this feature. For now, if you want to use the feature, enter chipload and surface…

G-Wizard Goodies for the CNC Router Gang in GWC 1.635

Apr 11, 2012   //   by Bob Warfield   //   Blog, CNC Router, FeedsSpeeds, Software  //  No Comments

There’s gotten to be quite a few of CNC Router folks using our G-Wizard Calculator so I wanted to do a release that addresses some of their special needs.  I have just uploaded G-Wizard Calculator version 1.635, and it includes several nifty things.
First, it has direct support for downcut, compression, and straight flute router…

CNC Router Cutter Types and How to Use Them

Apr 6, 2012   //   by Bob Warfield   //   Beginner, Blog, CNC Router, FeedsSpeeds, Software, Techniques  //  11 Comments

While you can use endmills and twist drills that are typical of the non-router (routers are also called gantry mills, if you prefer) CNC world, there are a number of special cutters than can help out in a variety of situations and that’s what this article is all about.  For more on regular milling cutters…

10 Tips for CNC Router Aluminum Cutting Success

Mar 27, 2012   //   by Bob Warfield   //   Beginner, Blog, CNC Router, FeedsSpeeds, Techniques  //  43 Comments

Folks often ask whether a CNC Router can cut aluminum.  They’re used to seeing the primarily cut wood and plastics.  My answer to this question is always, “Yes, if you do it right.”
There are a couple of things to remember about how aluminum (and other metals) are different from wood or plastics.  First, they…

Helical Interpolation Ramp Angle and the Best Ways to Enter a Cut

Mar 7, 2012   //   by Bob Warfield   //   Blog, FeedsSpeeds, Techniques  //  1 Comment

What’s the best way to get the cutter to depth when beginning a pocket?
Leaving aside the possibility of pre-drilling a hole or other strategies that could involve a tool change, the pecking order is pretty straightforward.  Helical Interpolation creates the least wear on the tooling, followed by ramping, and plunging is by far the…

Calibration: Essential for the Best Feeds and Speeds

Feb 23, 2012   //   by Bob Warfield   //   Blog, FeedsSpeeds, Software, Techniques  //  No Comments

Professional machinists are involved in a highly competitive business.  They need to eek out every drop of productivity they can.  Recently on Practical Machinist, someone asked where to get the best feeds and speeds chart, which produced quite a bit of discussion from the readership.  There’s a lot of wisdom on that board.  One individual,…

G-Wizard Calculator Version 1.630 Just Posted

Feb 20, 2012   //   by Bob Warfield   //   Blog, FeedsSpeeds, Software  //  No Comments

Release 1.630 is a minor feature release:
– We’ve added buttons so you can go to the correct web page to Purchase G-Wizard as your trial is running out or to renew your subscription if it is running out. It’s also easy to see how many days are left on your trial or subscription as…

Use “Corncob” Roughers to Kick MRR’s Up a Notch

Feb 15, 2012   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Software, Techniques  //  3 Comments

“Corncob” Roughers are endmills that have serrations on the flutes to help break up the chips.  You’ve probably wondered what the advantages are for these, so I thought I’d put together a post and talk about them a bit.  These roughing endmills are only useful for roughing as the serrations leave tracks on any walls…

Using G-Wizard to Calculate Feeds and Speeds for Fly Cutters and other Manual Machining Conundrums

Jan 15, 2012   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Manual, Software, Techniques  //  2 Comments

This article is the newest chapter from our Feeds and Speeds Cookbook. The original is in the Cookbook here.
I got an email from a customer the other day who wondered if there wasn’t some way to make G-Wizard more focused to the needs of manual machinists. He felt that it was overly “CNC specific”,…

The First New Software Release of 2012 brings a couple Goodies to G-Wizard Calculator

Jan 2, 2012   //   by Bob Warfield   //   Blog, FeedsSpeeds, Software  //  No Comments

Red marks the new buttons and columns to save you time with Fasteners…
Release 1.620, just posted, is a minor feature and bug fix release:
– Renamed “Cap Screw” tab to be “Fasteners” under “Quick Reference”.
– Added 2 new columns to “Fasteners” database that lists the drill size for normal fit and close fit.…

Advantages and Pitfalls of Rigid Tapping

Dec 29, 2011   //   by Bob Warfield   //   Blog, FeedsSpeeds, Techniques  //  2 Comments

This article is part of our Feeds and Speeds Cookbook. Click here for the full article.
I’m not sure when it got to be such a hot item, but rigid tapping seems like one of those things that comes up early in discussions of machines, controllers, and so forth. “Does it do rigid tapping?” is…

Great Tip: Pull Up the Finishing Pass on Pockets

Dec 18, 2011   //   by Bob Warfield   //   Blog, FeedsSpeeds, GCode, Techniques  //  No Comments

Saw a great tip from an aerospace machinist on one of Hoss’s CNCZone threads:

When you do the finish pass, reduce depth of cut a few thousandths so that only the side of the endmill is cutting. This will improve surface finish and reduce chatter.

Sounds like a geat tip to me!…

New Feeds and Speeds Cookbook Article on Surface Finish Tips

Dec 18, 2011   //   by Bob Warfield   //   Beginner, Blog, FeedsSpeeds, Techniques  //  No Comments

Speaking of great tips, that tip to pull up the finish pass was enough to get me to finish my partially completed Cookbook article on Surface Finish Tips. Lots of great stuff there, check it out!
If you haven’t looked over the Feeds and Speeds Cookbook, now is your chance. It’s filled with tons of…

Deflection Kills an Endmill

Dec 16, 2011   //   by   //   Beginner, Blog, FeedsSpeeds, Software, Techniques  //  2 Comments

I enjoy watching John Grimsmo’s knifemaking videos, so I was recently catching up to see what I’d missed. I will show a couple of the good ones in a second post, but first I wanted to touch on a case where deflection broke an endmill. John’s video captured it perfectly at about 9:22:

You can…

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