Re: [CAD_CAM_EDM_DRO] Radius compensation - Z axis

I believe...at least from what MasterCAM does...that tip compensation (based
on tool diameter) works in all planes. This means the center of the
spherical radius will be offset from the part boundary by an amount equal to
the tool radius. If (in MC) center compensation is selected, the center of
the tools radius will follow the boundary...which means the part would be
undersized.

Best thing to do is run a test piece to see how it works on the program you
are using.

Smoke

> I think I understand radius compensation in the X and Y axis but not in

the

> Z axis. I'm using a ball nose mill (.750) to mill a curved track in either
> the XZ, YZ, or XYZ plane. There are six of these tracks around a center so
> 2 of them use 2 axes but 4 of them use 3 axes simultaneously
>
> I thought about just programming the spherical center-point of the ball
> nose to cut a radius that is .375 smaller than what I need, but I'm not
> sure if that's the best plan.
>
> I'm worried that radius compensation would do nothing more than move the
> groove in only one axis, i.e. if I use a radius compensation on a G02 or
> G03 in the XZ plane, would the groove be moved in the X axis by the
> compensation amount or would the radius of the G02 or G03 be increased by
> the compensation amount?
>
> I guess what I really need is spherical compensation instead of radius
> compensation.
>
> I'm using a horizontal machine if it makes any difference.
>
> Any and all ideas and comments welcome.
>
> Ethan
>
>
>
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