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Browsing articles in "CNC Router"

What Now: My CNC Won’t Go Slow Enough or Fast Enough?

Mar 15, 2013   //   by Bob Warfield   //   Beginner, Blog, CNC Router, DIY CNC, Software, Techniques  //  No Comments

It takes a complex bunch of math to properly calculate Feeds and Speeds under all conditions and to get anywhere close to good answers.  There is a whole lot more to it than the basic equations everyone learns that claim to relate surface speed, chipload, rpms, feedrates and the like.  Unfortunately, those equations work reasonably…

Build a Mechanical Iris

Mar 12, 2013   //   by Bob Warfield   //   Blog, CNC Projects, CNC Router, Cool  //  No Comments

G-Wizard customer Lepton Heavy Industries has a neat blog post out about building a mechanical iris.  I don’t know why, but these darned things have always fascinated me.
This particular project uses a laser cutter to make the iris out of Baltic Birch, and it is based on a ShopBot CNC Router article by Chris…

Making Tool Trays From Cutting Board

Jan 20, 2013   //   by Bob Warfield   //   Blog, CNC Projects, CNC Router  //  No Comments

I love working with the plastic used for cutting boards–typically HDPE or High Density Poly Ethylene.  For cutting boards you usually see it in that milky white color.  I buy a few any time I see them on sale just to use as raw material for other projects.  Here’s some photos showing their use for…

Donek Drag Knife Adds Versatility to CNC Routers and CNC Mills

Dec 27, 2012   //   by Bob Warfield   //   Blog, CNC Router, Cool, Products, Techniques  //  No Comments

Came across this unique drag knife from Donek Tools and thought it was very slick:

The video demo shows some pretty amazingly sharp cuts being made at high speeds because the knife orients itself.  It takes ordinary utility knife blades and comes in 2 sizes.

Donek founder Sean Martin invented the Donek Drag Knife to…

Why Use a Single Flute End Mill?

Dec 23, 2012   //   by Bob Warfield   //   Beginner, Blog, CNC Router, FeedsSpeeds, Techniques  //  4 Comments
when to use a single flute end mill

There are a lot of strange beasts out there in the cutting tool world, and a lot of physics that are not obvious.  For example, many machinists will know that more flutes means more productivity, but that certain materials, like aluminum, require fewer flutes–usually two or three.  If that’s the case, when would it ever…

Jared’s Cube: Baffling and Beautiful

Nov 12, 2012   //   by Bob Warfield   //   Blog, CNC Projects, CNC Router, Cool  //  3 Comments

If you like Turner’s Cubes, perhaps Jared’s Cube will appeal:

I found these quite by accident via Google. Aren’t they cool?
Something similar would make a neat CNC router project.  I could imagine one like the last photo but done so the layers alternate light and dark woods.  If you’ve done something artistic with your…

CNC Router Tip to Reduce Pullout from Wood

Oct 23, 2012   //   by Bob Warfield   //   Blog, CNC Router, FeedsSpeeds, Techniques  //  3 Comments
Engraving wood plaques

I came across this neat tip over on to reduce pullout when engraving or milling wood.  The idea is simple: just spray a sealer like laquer on the wood to give it a little more support.  Here’s a nice cleanly engraved plaque done using this method:…

INFOGRAPHIC: Why You Need a Feeds and Speeds Calculator

Oct 13, 2012   //   by Bob Warfield   //   Beginner, Blog, CNC Router, FeedsSpeeds, Software, Techniques  //  1 Comment

A question I hear fairly often is, “Why do I need a Feeds and Speeds Calculator, aren’t the manufacturer’s recommendations good enough?  Here is an Infographic that walks through the limitations of Manufacturer’s Recommendations vs Feeds and Speeds Calculators like our own G-Wizard:

Share This Infographic
To embed the infographic to your blog or website,…

G-Wizard Adds Machinable Wax Feeds and Speeds for Lost Wax Casting, Jewelry Making, and Prototyping

Oct 9, 2012   //   by Bob Warfield   //   Blog, CNC Router, FeedsSpeeds, Software, Techniques  //  1 Comment
Machinable Wax

Machinable Wax is a really neat material.  It can be used with a Lost Wax Casting process to make jewelry and all sorts of other things.  I’ve done Lost Wax Casting before, and it is a simple process that yields good results.  The Wax is recyclable if you keep the shavings–just heat to 290F and…

MIT Students Create Hand-Held CNC Router: You Gotta See This!

Aug 9, 2012   //   by Bob Warfield   //   Blog, CNC Router, Cool, DIY CNC  //  5 Comments
handheld cnc router

Every now and then you see one of those inventions or products that makes you do a total double take because you realize they are game changers.

Three MIT students,  Ilan E. Moyer, Alec Rivers, Frédo Durand (left to right in the picture), have created a game changer for CNC Routing and woodworking.  Their invention…

Crazy Cool Wood Joinery with CNC

Jul 12, 2012   //   by Bob Warfield   //   Blog, CNC Router, Cool, Techniques  //  3 Comments

If you can imagine it, you can probably make it with CNC.  But how many of us are so used to seeing non-CNC’d things that we forget to imagine?
There is an indicator on the front of a Mac Powerbook laptop.  The case is aluminum, and if the indicator is not lit, you can’t see…

Do you like weird gears? Wooden gears? Do you have a CNC router?

Jul 11, 2012   //   by Bob Warfield   //   Blog, CNC Router, Cool, Software  //  No Comments

If any of those are true, there’s two things you need to do.
First is to check out this Clayton Boyer video that went viral with nearly 2 million views as I write this:

I’ve written about Clayton’s wooden geared clocks before.

Gears designed with Gearotic Gear Design Software…
The second thing you need to…

3 Hour CNC Router Job in 80 Seconds

Jul 9, 2012   //   by Bob Warfield   //   Blog, CNC Router  //  3 Comments

I love the time lapse videos:

He says all the pieces are held down by vacuum, and he gets up to periodically add bolts with washers as extra holding power.  Meanwhile he’s jamming away on his laptop over Wifi.  Probably running G-Wizard (not!), LOL.…

Make Awesome Control Panels and Signs With “Gravograph”

Jul 8, 2012   //   by Bob Warfield   //   Blog, CNC Projects, CNC Router, Cool, Techniques  //  No Comments
CNC Control Panel

I learned a new technique from this great article on CNCZone describing how the original poster used a product called “Gravograph” to make this gorgeous CNC control panel:

And here is some work in progress:

This engraving material is a laminated plastic, that has a self-adhesive to make it easy to stick to aluminum or…

French Fit Tool Storage

Jun 25, 2012   //   by Bob Warfield   //   Blog, CNC Router, Cool, Techniques  //  3 Comments

French fitting is the term used when toolboxes, cabinets, and drawers have fitted compartments that outline each tool.  Gun presentation cases are also commonly French Fit to the outline fo the gun.  There are a lot of ways to make a French Fit case or tray.  As a CNC’er, you’re in a position to carve…



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