Re: [CAD_CAM_EDM_DRO] CNC grinding & wheel dressing

See Machinery's handbook 25th ed page 1096
The dresser should be 10-15 deg away from angle of rotation and the same angle away from infeed. Also 1/8 to 1/4 inch offset from
centerline in the direction of rotation.
As viewed from the front with counterclockwise rotation, you never want to be dressing in the 3rd quadrant the wheel, always the 4th
quadrant. That's what the 1/8 to 1/4 offset from centerline means. If you are dressing in the 3rd quadrant, the wheel can grab the
dressing point and pull it under, then BOOM!

Tom Eldredge wrote:

> Gentlemen,
>
> When dressing a wheel, should the angle be slightly greater or less than 90
> degrees?
> Tom Eldredge
> ----- Original Message -----
> From: Smoke <gordonr@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Wednesday, March 14, 2001 10:30 PM
> Subject: Re: [CAD_CAM_EDM_DRO] CNC grinding & wheel dressing
>
> > In the interest of SAFETY, i wouldn't place the diamond point at a 90
> degree
> > angle to the grinding wheel when dressing them to a formed shape. That's
> a
> > good way to cause the wheel to explode while dressing the wheel!
> > The diamond point should be at a slight angle....which is why the
> commercial
> > dressing point are mounted that way.
> >
> > Smoke
> >
> >
> > >A friend has been doing a lot of work with grinders, headed toward
> > >making form cutters for clock gears. He asked me if I thought it
> > >possible to build a CNC wheel dresser.
> > >
> > >It seems to me it should not be to hard- the XY travel needs to be only
> > >an inch or so, but the diamond should be arranged to point always
> > >perpendicular to the line of travel.
> > >
> > >Are there such things?
> > >
> > >Anyone ever try to build one? Could Vector figure the angular axis to
> > >keep the dresser pointed in the correct direction?
> > >
> > >ron ginger
> > >
> > >Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
> > discussion of shop built systems, for CAD, CAM, EDM, and DRO.
> > >
> > >Addresses:
> > >Post message: CAD_CAM_EDM_DRO@yahoogroups.com
> > >Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> > >Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> > >List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...
> > >Moderator: jmelson@... timg@... [Moderator]
> > >URL to this page: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> > >bill,
> > >List Manager
> > >
> > >FAQ: http://www.ktmarketing.com/faq.html
> > >
> > >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
> > >
> > >
> >
> >
> > Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
> discussion of shop built systems, for CAD, CAM, EDM, and DRO.
> >
> > Addresses:
> > Post message: CAD_CAM_EDM_DRO@yahoogroups.com
> > Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> > Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> > List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...
> > Moderator: jmelson@... timg@... [Moderator]
> > URL to this page: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> > bill,
> > List Manager
> >
> > FAQ: http://www.ktmarketing.com/faq.html
> >
> > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
> >
> >
> >
>
> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the discussion of shop built systems, for CAD, CAM, EDM, and DRO.
>
> Addresses:
> Post message: CAD_CAM_EDM_DRO@yahoogroups.com
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...
> Moderator: jmelson@... timg@... [Moderator]
> URL to this page: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> bill,
> List Manager
>
> FAQ: http://www.ktmarketing.com/faq.html
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/