How to CNC a skull

 by surfwizz
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Really, everyone should have a skull on their desk.  It's an age-old symbol, a memento mori that reminds us that we are not long for this world.  So I set out to make one out of aluminum.  This was my process.  
 
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Step 1: CAD/CAM

skull box render.JPG
Partial Solidworks.jpeg
I designed the skull in Solidworks.  I don't have a ton of images from this part, and surface modeling is a giant can of worms that I'm nowhere near good enough at CAD to properly explain.  I got most of my help from the Solidworks Surfacing Bible, which can be purchased here.  If you're interested in my methods, take a look at the attached Solidworks file.  

I did the CAM setup in CAMworks.  This was divided into a rough area clearance, a z-level, and a constant stepover finishing pass.  I chose to do the rough clearance with a 1/2" hogging end mill, the z-level with a 1/2" regular end mill, and the stepover with a 1/4" ball end mill.  
poofrabbit says: May 13, 2012. 6:31 PM
This is great! I did a whole series as an undergrad with the Memento mori theme, I'm a sucker for such things. Well done!
nickygiscool says: Dec 14, 2012. 9:13 AM
could you please add the (STEP) file as well.
nickygiscool says: Nov 28, 2012. 10:48 AM
hi, would you be able to upload an (STL) file as this would be very usefull, thanks.
Le_KiD_Qc says: May 17, 2012. 7:28 AM
It will be nice if you can put a STEP, IGES or Parasolid files so every CAD/CAM system can open your model and not only Solid Work.
For the rest, good job on the model and the fabrication.
surfwizz (author) in reply to Le_KiD_QcMay 21, 2012. 11:21 AM
I've added an IGES file of the model; If you're still unable to open it, let me know, and I can try something else.
Don H. in reply to Le_KiD_QcMay 17, 2012. 2:54 PM
Yeah, I can't open whatever kind of file that is in Mastercam.
surfwizz (author) in reply to Don H.May 18, 2012. 2:57 AM
Unfortunately, I don't have access to CAMworks right now, so I can't mess around with its data formatting. I will have a more accessible CAD file up soon, though. Thanks for reading and commenting!
curvy77 says: May 18, 2012. 4:23 AM
i try something like this whenever i can.....but im more of a trail and error kind of man, sooooooo no computer for me.
thebeef2 says: May 13, 2012. 8:39 PM
Sweet dude! I might have to try this. Nice guide!
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