CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport

Posted by Marcus & Eva
on 2002-04-26 19:45:05 UTC
Hi:
It's not always necessary to center drill first.
Spotting and Screw machine drills are available that are stubby.
It is also possible to grind a "self centering" point on the tip of these
drills to further improve their self centering ability.
The geometry is complex and requires a properly set up drill grinder, but
this technique is used often in production. to avoid extra step of center
drilling.
Cheers

Marcus
----- Original Message -----
From: "baumanro2000" <rsba1@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, April 26, 2002 6:59 PM
Subject: Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport


> --- In CAD_CAM_EDM_DRO@y..., "Alex Canale" <alex.canale@r...> wrote:
> > The drill can go .110" deep, and no I didn't use a center drill
> because I
> > couldn't find one that small.
> >
>
>
> Just curious if you make it a practice to not center drill before
> drilling? To properly locate a hole for drilling seems like it must
> be center drilled first unless I missed something.
>
>
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Discussion Thread

sleyed 2002-04-24 22:40:40 UTC Surface grinder semi-automation Alex Canale 2002-04-25 06:50:40 UTC RE: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Marcus & Eva 2002-04-25 07:24:02 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Jon Anderson 2002-04-25 07:55:36 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Jon Elson 2002-04-25 10:43:01 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Bill Vance 2002-04-25 11:00:09 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport steveggca 2002-04-25 12:21:56 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Alex Canale 2002-04-25 15:00:20 UTC RE: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport scott wilson 2002-04-25 15:08:02 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Tim Goldstein 2002-04-25 15:18:28 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport steveggca 2002-04-25 16:36:23 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Carlos Guillermo 2002-04-25 17:30:35 UTC RE: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Alex Canale 2002-04-26 10:37:09 UTC RE: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport baumanro2000 2002-04-26 18:59:26 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Marcus & Eva 2002-04-26 19:45:05 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Jon Anderson 2002-04-26 20:01:14 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Brian Alley 2002-04-27 07:02:45 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Alex Canale 2002-04-29 07:50:18 UTC RE: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Brian Alley 2002-04-29 17:14:42 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport Jon Elson 2002-04-29 22:45:25 UTC Re: [CAD_CAM_EDM_DRO]Backlash & Wobbly Spindle on my Bridgeport