Re: Hotwire CNC on mill

Remember the one about the Americans trying to design a ballpoint pen
to work in zero gravity and the Russians said why not use a pencil.
We tend to get a little too hi-tec sometimes.
Why not clamp a couple of guide blocks to the table each side of the
plastic stock, put the hotwire in the spindle chuck and just push the
stock through by hand. Cut the I.D.first then mount on a pipe between
centers on a mounting board and cut the O.D. I will leave the nitty
gritty details to you.
George

In CAD_CAM_EDM_DRO@yahoogroups.com, "Michael Fagan"
<woodworker88@...> wrote:

>
> You need to look up the G codes to tell it to redefine the cutting
> plane into a YZ plane and not the standard XY plane. Then, you can
> spec the move using a standard G02/G03 circular interpolation as

well

> as G01 linear moves.
>
> For this particular application, I would write the g code manually

if

> at all possible.
>
> Michael
>
> On Sun, Oct 26, 2008 at 2:10 PM, Danny Miller <dannym@...> wrote:
> > I have a long, thin block of polyethylene foam which needs both

internal

> > and external cuts parallel to the long axis. Basically looking

for a

> > cylinder with a hole in the middle like a pipe insulator, and

there will

> > be a slit where the wire entered to cut the internal hole. The

slit is

> > undesirable but necessary. The long axis will be put on the X

axis but

> > it is bigger than the table's X axis, maybe 3 ft even.

snip