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DRILL A SQUARE HOLE?
My Photobucket ^
| October 19, 2011
| swampsniper
Posted on 10/19/2011 5:50:54 AM PDT by SWAMPSNIPER
This is cool!
TOPICS: Chit/Chat; Education; Miscellaneous; Science
KEYWORDS: drill; technology
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To: ShadowAce
Next let’s see a lathe that makes a square peg.
To: SWAMPSNIPER
same principle as a mortising bit, the square corners are cut with a broaching or chisel action. Pretty cool tho.
22
posted on
10/19/2011 6:44:12 AM PDT
by
bigbob
To: SWAMPSNIPER
It might if you don’t want a blind hole.
Good point. For a blind hole, this device is a pretty interesting alternative.
23
posted on
10/19/2011 6:47:14 AM PDT
by
chrisser
(Starve the Monkeys!)
To: SWAMPSNIPER
24
posted on
10/19/2011 6:47:54 AM PDT
by
smokingfrog
( sleep with one eye open ( <o> ---)
To: ImJustAnotherOkie
Next let’s see a lathe that makes a square peg.All you need is a 4-jaw independent chuck. Put it in the chuck sideways, face-turn one side, then re-chuck it 90 deg. rotated and face off each of the other three sides.
To: ShadowAce
The blade wobbles somehow to obtain this travel. I assume it floats at the connection. Seems like that wobble would wear this thing out quickly or remove any ability to use this bit in anything but a drill press. Not that that’s a huge drawback, but it’s a negative.
26
posted on
10/19/2011 6:51:30 AM PDT
by
LibertarianInExile
(Rick Perry sweep the polls? Naw, the illegals he's coddled in Texas do all his sweeping.)
To: SWAMPSNIPER
Shouldn’t a hole go all the way through the metal? It didn’t look like it did to me. It seems that going all the way through something and remaining square would present a problem for this bit.
To: SWAMPSNIPER
I wonder if this wuld be hard on the bearings of the milling machine? Anyone know?
To: SWAMPSNIPER
arbor presses, wikipedia ...
A ram provides the force...
...I'm a cabinet maker, think I'll stick with gouges and chisels... (-;)
29
posted on
10/19/2011 7:13:34 AM PDT
by
gargoyle
(...it becomes necessary for one people to dissolve the political bands which have connected them...)
To: ConservaTexan
You don’t always need or want to go through but I can’t see why it would be a problem.
30
posted on
10/19/2011 7:14:44 AM PDT
by
SWAMPSNIPER
(The Second Amendment, a Matter of Fact, Not a Matter of Opinion)
To: KarlInOhio
That, and the Wankel Engine cycle!
31
posted on
10/19/2011 7:18:02 AM PDT
by
pingman
(Durn tootin'; I like Glock shootin'!)
To: gargoyle
32
posted on
10/19/2011 7:20:19 AM PDT
by
pingman
(Durn tootin'; I like Glock shootin'!)
To: pingman
33
posted on
10/19/2011 7:27:39 AM PDT
by
gargoyle
(...it becomes necessary for one people to dissolve the political bands which have connected them...)
To: chrisser
Wouldn't a square broach work just as well and take less time?
This "drill" appears to be able to cut a blind hole that's square for the entire depth, which would be much more difficult for a broach.
I was about to say that broaching would also require a separate machine, whereas this device can be used as another step in the same machining center. However, I don't know that you can't broach in a machining center. I've never seen it done, but that doesn't mean people aren't doing it.
To: SWAMPSNIPER
I used to be a machinist, and I would re-sharpen drill bits during the course of my work. I eventually got pretty good at it, but while I was learning, I often produced drill bits that drilled weird, sort of triangular holes.
Unfortunately, I never found a marketable niche for weird, sort of triangular holes. :-)
To: SWAMPSNIPER
36
posted on
10/19/2011 7:35:52 AM PDT
by
Sergio
(An object at rest cannot be stopped! - The Evil Midnight Bomber What Bombs at Midnight)
To: SWAMPSNIPER
A device known to every carpenter for hundred years. Neat but not novel.
37
posted on
10/19/2011 7:36:10 AM PDT
by
count-your-change
(You don't have to be brilliant, not being stupid is enough.)
To: buffaloguy
I wonder if this wuld be hard on the bearings of the milling machine? Anyone know?I wouldn't think so. Milling machines spindle bearings are designed to withstand both side and end load.
To: tacticalogic
Chuck tried to put it in sideways but she didn’t like it.
To: ImJustAnotherOkie
Chuck tried to put it in sideways but she didn’t like it.That's kind of weird. Usually they don't get past Chuck having 4 jaws.
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