find the point?

[TURN ME]

i have a newbie question. can i find the tangent point of rad to angle using a chord calc.? or is this 2 different things?

i have a R.1 nose to a 45 i can draw it in cam and get the #'s for the lathe but i like to double check my #'s. think i got myself mixed up.

[lakeside]

is this what you are looking for

[TURN ME]

that is what i was talking about. how do i use this to get correct #'s or is this something different.

i get different #'s with smart cam. and now im real "cornfuzed". lol

any info would be great i thank u.

[Karl V. Schuler]

TURN ME,
What you really need is called trigonometry.

[lakeside]

Originally Posted by TURN ME any info would be great i thank u.

here you go try this link http://www-gap.dcs.st-and.ac.uk/~his...functions.html

[Kiwi]

TurnMe
What info do you have and which figure do you require?
Give us the figures off your CAD drawing or post a pic.

[TURN ME]

THANKS FOR ALL THE INPUT.
raduis .1
end angle 45
x.14142 z-.02929 here are the #'s i got and used.
i was given start point radius and angle.
still foggy on the chords but im reading and like a sponge i 'll soak it up lol.
im learning on a little okuma lathe w/live tooling.
so any wizdom on turning would be awsome.

[lakeside]

what are you looking for a cord for?

[Kiwi]

TurnMe
Check if this is what you need. Is the angle taken from the correct points.
As Mike said, is the X figure really what you require?

[TURN ME]

this looks like it will work. thank u kiwi
this should work for any radius to angle as long as i add the dia. to the x=value right?
if the radius is not a nose.
did u make that program kiwi?

[TURN ME]

im not sure what a cord is i did use much math in my other job.
i am reading the machinist handbook all the time.
i also read alot of post on here and pick up some tips.
what would the formula look like for this to figure the x and z values?
and how did u get a pic of machine mate?

[Kiwi]

TurnMe
Yes I wrote the Visual Basic program, Its about as simple as they come.
I drew the drawing with CAD and then "Print Screen" and added to program to make it clear how the figures fitted the sketch.
The cord of a circle is the figure you are calling X
I've had nothing to do with CNC Lathe only Mill, but I'm still confused why you need this figure. I would have thought you would only want half of that figure. Centre Line to tangent Point. Check this out and advise. No problem to change.
The formula for Z is: R - (R * Cos(Angle))
.1 - (.1 * Cos(45)) = 0.02929
I'll show you the X once you confirm which number you require.