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10-02-2011, 08:47 AM
| #1 |
| Pebble Pounder Join Date: Mar 2009 Location: Regina, Saskatchewan
Posts: 117
|  drilling square holes |
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10-02-2011, 10:51 AM
| #2 |
| RCC Addict Join Date: Oct 2009 Location: San Francisco
Posts: 1,927
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Ive seen that before. Sure is cheaper than buying a square broach  |
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10-02-2011, 03:35 PM
| #3 | |
| Quarry Creeper Join Date: Oct 2011 Location: Detroit
Posts: 347
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10-02-2011, 06:34 PM
| #4 |
| Newbie Join Date: Jul 2011 Location: San Diego
Posts: 19
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It's gotta be on a weird end mill that has a spindle that moved around in time with the bit. I've used 3-flute end mill bits and they still make round holes. If you've got one of these end mills then you probably have a wire EDM. It'd be much more accurate and you can get a hole that is probably a bit more square. |
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10-04-2011, 09:53 AM
| #5 |
| Newbie Join Date: Sep 2011 Location: Metro D
Posts: 16
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Not as pretty, but I have used a file to achieve a squared hole.  |
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10-04-2011, 10:02 AM
| #6 |
| Pebble Pounder Join Date: Mar 2009 Location: Regina, Saskatchewan
Posts: 117
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I did a bit of research and it turns out this is not so new. A patent was issued for the design a hundred years ago, but this outfit is finally making a bit that works. Even though the hole is not perfectly square, it's VERY close. It looks like there are several sizes either available or planned. I could see a few different applications for something like this, though. |
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10-04-2011, 10:49 AM
| #7 |
| I wanna be Dave  Join Date: Jul 2009 Location: Rancho Relaxo. California. USA. Earth.
Posts: 3,292
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Agreed that the spindle is wiggling around within certain parameters, its not just the tool. The slides before the vid show the toolpath as well. |
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10-04-2011, 04:32 PM
| #8 |
| RCC Addict Join Date: Mar 2010 Location: Auburn, MI
Posts: 1,177
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Interesting. I am guessing there is an attachment that gives the tool the path, at that speed, to make the holes square. That means it will have a very finite range and I bet is VERY expensive. Still cool to watch.. Oh, BTW, go watch the old episodes of the new yankee work shop, Norm has been making square holes for a long time with one of these. Found this too... square hole drilling on a drill press - YouTube How to Drill a Square Hole - YouTube |
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10-04-2011, 04:43 PM
| #9 |
| I wanna be Dave Join Date: Jul 2009 Location: Rancho Relaxo. California. USA. Earth.
Posts: 3,292
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Norm is a badass, his fingers say he's been doing woodwork since long before I started watching him as a teenager.
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10-04-2011, 04:52 PM
| #10 |
| MODERATOR™   Join Date: Jul 2004 Location: Ohio
Posts: 18,928
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I was making squares with circles when I was five using my Spirograph!
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10-04-2011, 06:53 PM
| #11 | |
| RCC Addict Join Date: Jul 2008 Location: San Diego
Posts: 1,144
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10-04-2011, 07:23 PM
| #12 |
| RCC Addict  Join Date: Jan 2011 Location: Bozangeles
Posts: 1,484
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This was definitely good info thanks for sharing |
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10-04-2011, 11:28 PM
| #13 | |
| No idea what I'm doing Join Date: Oct 2008 Location: Underground, CO
Posts: 4,529
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10-05-2011, 12:44 AM
| #14 |
| Quarry Creeper Join Date: Feb 2006 Location: Muskegon
Posts: 223
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I've been a machinist for year's, and have been seeing this for year's lol, it's just simultaneous X-Y axis movement, with a 15 degree corner. There is stil a round corner, and it's realistically simpler for the Hobbyist to use a broach in a press, or even a vice, or a file as was mentioned. But it is cool to watch. I program and set-up up 4-5 axis machines all the time, and when a big linear is running full bore in five axis's, it'll make you step back a bit lol. |
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