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

Here's an updated version which includes coronets up to 180 degrees.

John

> -----Original Message-----
> From: John Guenther [mailto:j.guenther@...]
> Sent: Tuesday, August 20, 2002 22:46
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> 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@...]
> > 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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> 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
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