RE: [CAD_CAM_EDM_DRO] Re: Cam track help! coordinates from SIC

The file is cam_track.xls in the files section. Sorry for the confusion, I
forgot that attachments are not allowed on this list. The file contains the
coordinates for the full 360 degrees and includes a chart showing what the
plot will look like. This is to be machined into a piece of 4130 or 4140
steel 1.675 -.001 +0 diameter 2.1 inches in length. The chart contained on
the drawings only contains the first 90 degrees.

HTH

John Guenther
Sterling, Virginia

> -----Original Message-----
> From: markpowerplus [mailto:mabw@...]
> Sent: Tuesday, August 20, 2002 23:16
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Re: Cam track help! coordinates from SIC
>
>
> -Thanks John,
> Where do I find them?
> Mark-- In CAD_CAM_EDM_DRO@y..., "John Guenther" <j.guenther@v...>
> wrote:
> > Here's an updated version which includes coronets up to 180 degrees.
> >
> > John
> >
> > > -----Original Message-----
> > > From: John Guenther [mailto:j.guenther@v...]
> > > Sent: Tuesday, August 20, 2002 22:46
> > > To: CAD_CAM_EDM_DRO@y...
> > > Subject: RE: [CAD_CAM_EDM_DRO] Re: Cam track help! coordinates
> from SIC
> > >
> > >
> > > Here are the coordinates as published in SCI #22 for the first 90
> > > degrees of
> > > the cam track. I entered this by hand, I have not verified it
> but it does
> > > plot a pretty smooth 1/4 sine wave.
> > >
> > > John Guenther
> > > Sterling, Virginia
> > >
> > > > -----Original Message-----
> > > > From: John Guenther [mailto:j.guenther@v...]
> > > > Sent: Tuesday, August 20, 2002 21:50
> > > > To: CAD_CAM_EDM_DRO@y...
> > > > Subject: RE: [CAD_CAM_EDM_DRO] Re: Cam track help!
> > > >
> > > >
> > > > There is a table of coordinates for the cam track on drawing
> > > > plate 2 of the
> > > > plans. I am not sure how useful it will be, but I will try to
> > > scan it in
> > > > tomorrow, or enter all 90 of them by hand. If I get it entered
> > > properly I
> > > > will send it to those that want it. I don't know what else
> > > will be needed
> > > > to generate the track.
> > > >
> > > > John Guenther
> > > >
> > > > > -----Original Message-----
> > > > > From: Dan Statman [mailto:dan.statman@r...]
> > > > > Sent: Tuesday, August 20, 2002 17:56
> > > > > To: CAD_CAM_EDM_DRO@y...
> > > > > Subject: Re: [CAD_CAM_EDM_DRO] Re: Cam track help!
> > > > >
> > > > >
> > > > > No problem. Please define all of your parameters. This code
> > > > will assume
> > > > > that you get the full width of cut with a single pass. Do you
> > > > > need multiple
> > > > > passes to get the depth? What step size in degrees would you
> > > > > like? If you
> > > > > get me the specifics quickly, then I can do this right away.
> If
> > > > > you wait 20
> > > > > minutes or longer then I will have to do it when I get back
> > > > this evening.
> > > > > Either way, I will do this and it should only take a few
> minutes.
> > > > >
> > > > > Please let me know ALL of the details. You mentioned "pitch"
> > > > > before, do you
> > > > > mean amplitude? How far from one side of the wave to the
> other
> > > > > do you want
> > > > > (this is twice the amplitude), and how many periods?
> > > > >
> > > > > You can e-mail me directly at dan.statman@r...
> > > > >
> > > > >
> > > > > Daniel J. Statman, Statman Designs
> > > > > www.statmandesigns.com
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "markpowerplus" <mabw@b...>
> > > > > To: <CAD_CAM_EDM_DRO@y...>
> > > > > Sent: Tuesday, August 20, 2002 5:52 PM
> > > > > Subject: [CAD_CAM_EDM_DRO] Re: Cam track help!
> > > > >
> > > > >
> > > > > > Dan,
> > > > > > I think we have hit the nail on the head , what you call
> > > simple is to
> > > > > > me (read brain dead with maths) is difficult , can you
> generate the
> > > > > > code for me please...... would be ever so grateful.... See
> > > i am just
> > > > > > learning this cnc stuff and need a real kick along!!!!!!
> > > > > > thanks
> > > > > > Mark--- In CAD_CAM_EDM_DRO@y..., "Dan Statman"
> <dan.statman@r...>
> > > > > > wrote:
> > > > > > > Mark,
> > > > > > >
> > > > > > > For this simple of a geometric shape around a perfect
> > > cylinder just
> > > > > > use a
> > > > > > > spreadsheet and generate the code by hand.
> > > > > > >
> > > > > > > If your rotary table is setup vertical to the table and
> aligned
> > > > > > with the
> > > > > > > y-axis so that movements towards the edge of the wave are
> in the
> > > > > > > x-direction, I like to set my x=0 point to the middle of
> > > the curve.
> > > > > > >
> > > > > > > Go into Microsoft Excel (or any other spreadsheet that
> > > you like) and
> > > > > > > generate a column of numbers for the rotary axis from 0
> to 360
> > > > > > degrees,
> > > > > > > using whatever step increment you like, I prefer 1/2
> degree steps.
> > > > > > From
> > > > > > > these degree values calculate the X-values by using the
> > > formula for
> > > > > > a SINE
> > > > > > > wave specific for your amplitude (pitch?) and number of
> periods.
> > > > > > The
> > > > > > > formula is amplitude*SIN(Pi*degrees*periods/180/), and
> generate an
> > > > > > X-value
> > > > > > > for each degree value.
> > > > > > >
> > > > > > > Add columns for the axis designators: X and A and this is
> your G-
> > > > > > Code for
> > > > > > > the movement around the cylinder. You have to specify
> > > the depth of
> > > > > > cut with
> > > > > > > a Z-axis move prior. For the opposite wave just make
> another
> > > > > > column that is
> > > > > > > the negative of your first wave.
> > > > > > >
> > > > > > > Copy all of the cells and then paste into a text editor
> and save
> > > > > > your G-code
> > > > > > > file.
> > > > > > >
> > > > > > > If you need more explicit instructions, or would like me
> to
> > > > > > generate the
> > > > > > > code for you in 5 minutes, just ask.
> > > > > > >
> > > > > > > Daniel J. Statman, Statman Designs
> > > > > > > www.statmandesigns.com
> > > > > > >
> > > > > > >
> > > > > > > ----- Original Message -----
> > > > > > > From: "markpowerplus" <mabw@b...>
> > > > > > > To: <CAD_CAM_EDM_DRO@y...>
> > > > > > > Sent: Tuesday, August 20, 2002 5:13 PM
> > > > > > > Subject: [CAD_CAM_EDM_DRO] Cam track help!
> > > > > > >
> > > > > > >
> > > > > > > > Morning all!,
> > > > > > > > Can anyone help me ,i need to machine a double sine
> > > wave around a
> > > > > > > > 1.630 dia tube. I am using Featurecam 5 and cncpro on
> my 4 axis
> > > > > > > > mill . I just cannot seem to be able to produce the nc
> > > code to do
> > > > > > it.
> > > > > > > > The groove (slot?) needs to be .375 wide and .312 deep
> with a
> > > > > > pitch
> > > > > > > > of .680, who can show/tell me how to do it ?
> > > > > > > > thanks
> > > > > > > > Mark
> > > > > > > >
> > > > > > > >
> > > > > >
> > > > > >
> > > > > > Addresses:
> > > > > > FAQ: http://www.ktmarketing.com/faq.html
> > > > > > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> > > > > >
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> > >
> > > http://groups.yahoo.com/group/jobshophomeshop I consider this
> > > as a sister
> > > site to the CCED group, as many of the same members are there,
> for OT
> > > subjects, that are not allowed on the CCED list.
> > >
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> > > http://groups.yahoo.com/group/jobshophomeshop I consider this
> > > as a sister site to the CCED group, as many of the same members
> > > are there, for OT subjects, that are not allowed on the CCED list.
> > >
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>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to
> reach it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this
> as a sister site to the CCED group, as many of the same members
> are there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
> POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO
> EXCEPTIONS........
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