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/
> > > > >
> > > > > 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

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> > > > OFF Topic POSTS: General Machining
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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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> > > > bill,
> > > > List Mom
> > > > List Owner
> > > >
> > > >
> > > >
> > > > Your use of Yahoo! Groups is subject to
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> >
> >
> > Addresses:
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> > 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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> >
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> >
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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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> > bill,
> > List Mom
> > List Owner
> >
> >
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http://docs.yahoo.com/info/terms/

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