Re: 5-axis Taig Mill

Alan,

In rotating a knife edge tool along the cutting path would you need
to do some kind of look-ahead as opposed to taking the angle at the
exact cutting point ?

My 4th-axis is from a headstock (and tailstock when needed) off a
taig lathe with a worm wheel replacing the belt pully.

The way I'm using the 5th-axis for contouring, it's moving pretty
much all the time as the tool traverses a curved surface, so clamping
would'nt help although would be good for indexed cuts.

Rab

--- In CAD_CAM_EDM_DRO@y..., Alan Marconett KM6VV <KM6VV@a...> wrote:
> Hi Rab,
>
> I was thinking about programming an axis that would always be
tangent,
> but I don't have any immediate need. I might need to move a knife-
edged
> tool along a toolpath, so it might be useful there.
>
> I was calling your 'A' axis worm drive spindle a "rotary table"
when it
> really isn't. Does the work of a rotary table 'tho. I use a rotary
> table there, as I don't have a spindle mounted as an 'A'. Did this
> start out as a lathe?
>
> How about a "clamp" for the 5th axis? An extra Mcode could operate
it.
> Or, perhaps the stepper driver could do the clamping, instead of a
> "reduced current" mode for the motor, you'd engage the clamp
(brake).
>
> Alan KM6VV