Re: hi

Semih,

Source code for circular interp and a brief description of how it
works is in my CNC lathe faq:

http://www.dakeng.com/ltfaq.htm#6.6

Coincidentally, it's in Turbo Pascal as well. As Jerry already
mentioned the whole program is a shareware download (no cripples) CNC
controller from the link below:

http://www.dakeng.com/turbo.htm

Dave Kowalczyk
Seattle WA

--- In CAD_CAM_EDM_DRO@y..., sdiken@r... wrote:
> My project is "Conversion of a conventional lathe to the CNC lathe,
> by using PC based motion control unit" The programming language is
> Turbo Pascal. PC is sending signals to parallel port. Then a driver
> is sending this signals to 2 step motors. One of them is acting on
X-
> direction and the other Y-direction of the lathe. I write a
programm.
> But is it not finished. In this programm, x1 and y1 (start point)are
> entered and then x2 and y2 (finish point) are entered. If this is a
> linear line, then my programm is successful (y=mx*i) either m>1 or
> m<1 (m=slope). But I can not do it for a circle. (x^2 + y^2 = r^2)
> I want to move the step motors like a quarter circle for example for
> a shaft. Look the figure below. I update the program to the FILES.
> You know any programm like this? Or can please help me!?
>
> _____
> C______
> ______S
> _____C
>
> Thanks
> SEMIH DIKEN