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I wonder how often they have to replace the spindle bearings??

That's a lot of vibration from that tool holder. Personally if I had to go to the trouble of drilling pilot holes first, i would rather use an endmill and spiral cut down to make my square hole.
 

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The Media has an agenda!
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It needs so American refinement-(or the rest of the stolen technology ) because apparently the first hole..don't look to square.;)
 

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that leaves me wtf-ing about as much as the lathe that can turn a square/hex/etc. Absolutely nuts
Make squares, rectangles, eccentrics, cams, all the time on the lathe. :p
 

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Its definitely cool, but is there an advantage to square holes over round ones? Besides being able to use square shanked bolts.
 

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Its definitely cool, but is there an advantage to square holes over round ones?
Yes. It solves the age-old dilemma of not being able to put a square peg in a round hole.

Now you can. If O'Neal gets word of this, there may be a market for square piston pins.
 

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If you have to drill a pilot, why not just broach it??? Rotary broach, sinker edm, etc.. Its neat, but I dont see it making huge waves in the CNC or manufacturing world. Looks hard on the machine and slow. The tooling dont look cheap either.
 

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I worked at a machine shop outside of detroit in 1988.It was owned by a bunch of old navy machinist.They said they made that setup long before I got there. They said it worked killer. Years later chanks stole ANOTHER american idea. These guys could make anything. I made some pretty killer stuff.Straight out of high school. Of course they set up the machine,I just ran them. But they were manual.
 

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Wouldn't that tend to start cracking at the corners if it was under stress? Like the Comet airplane windows?
 

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If you have to drill a pilot, why not just broach it??? Rotary broach, sinker edm, etc.. Its neat, but I dont see it making huge waves in the CNC or manufacturing world. Looks hard on the machine and slow. The tooling dont look cheap either.
No EDM= no additional set up, and EDM's a slow as hell=cheeper
No broach=no tool change, this apears to be faster=cheeper

The question is how much is the tool, and how much to keep it up..
 

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waiting to make a pass!
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I worked at a machine shop outside of detroit in 1988.It was owned by a bunch of old navy machinist.They said they made that setup long before I got there. They said it worked killer. Years later chanks stole ANOTHER american idea. These guys could make anything. I made some pretty killer stuff.Straight out of high school. Of course they set up the machine,I just ran them. But they were manual.
Damn ***** steal everything. i knew they couldn't come up with that themselves
 
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