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@...]
> Sent: Tuesday, August 20, 2002 21:50
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> 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@...]
> > Sent: Tuesday, August 20, 2002 17:56
> > To: CAD_CAM_EDM_DRO@yahoogroups.com
> > 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@...
> >
> >
> > Daniel J. Statman, Statman Designs
> > www.statmandesigns.com
> >
> >
> > ----- Original Message -----
> > From: "markpowerplus" <mabw@...>
> > To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> > 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:
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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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