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Chinese Drill Bit Drills Square Holes
Posted: Mon Oct 17, 2011 6:43 pm
by gr8mesquite
Check this out, you'll be amazed:
http://www.liveleak.com/view?i=78a_1317942353
Is this Photoshop-ed, or real? The mortise of the future?
Jerome
Posted: Mon Oct 17, 2011 7:42 pm
by joedw00
It doesn't look Photoshopped, but sure looks like a lot of vibration. That is weird how it does it.
Posted: Mon Oct 17, 2011 7:46 pm
by dusty
If it is real it is INNOVATIVE.
It doesn't appear to me to be a drill bit though. It is more like a chisel or a router.
Posted: Mon Oct 17, 2011 8:19 pm
by djmartins
Old, OLD tech.....
Posted: Mon Oct 17, 2011 8:47 pm
by JPG
Actually this tells it better than slow motion.
[ATTACH]14511[/ATTACH]
Notice the center of the triangle is rotating off center and the corners opposite the cutting corner ride the side of the square.
Gotta wonder how hole gets started.
Certainly not a 'drill bit' in the traditional sense, but it does appear to 'make' holes!
Shaper comes to mind as a descriptor!(in the metal working sense like a ram shaper that follows a square path)
Slight rounding at the 'corners'.
Posted: Mon Oct 17, 2011 11:49 pm
by paulmcohen
If you look at the video, it starts with a round hole.
Posted: Tue Oct 18, 2011 12:19 am
by JPG
paulmcohen wrote:If you look at the video, it starts with a round hole.
The video shows a round hole, but I believe that is to make less material removal necessary when making the square hole.
There is nothing that I see that registers over that hole(as part of the bit).
I have to conclude that the hole does not determine the location of the square hole, but the positioning of the bit is all that determines that.
That leads me to believe the 'bit' merely starts its wiggle dance as it contacts the material being 'drilled'. The triangular cutter cannot reach outside the square sides.
Posted: Tue Oct 18, 2011 12:44 am
by paulmcohen
JPG40504 wrote:The video shows a round hole, but I believe that is to make less material removal necessary when making the square hole.
There is nothing that I see that registers over that hole(as part of the bit).
I have to conclude that the hole does not determine the location of the square hole, but the positioning of the bit is all that determines that.
That leads me to believe the 'bit' merely starts its wiggle dance as it contacts the material being 'drilled'. The triangular cutter cannot reach outside the square sides.
I did not mean to say the round hole was used for alignment, the machine looks like some kind of CNC machine so registration is done by the X-Y position mechanism.
Posted: Tue Oct 18, 2011 7:13 am
by holsgo
I've seen that on metalworking forums. Not uncommon. They have wobble bits like that for hex shapes as well I think. Very cool.
Posted: Tue Oct 18, 2011 9:50 am
by wiredone
I believe the round hole is there (and has to be there) because the tool is not capable of cutting in the center, which is not uncommon in certain metal working applications.
