Re: [CAD_CAM_EDM_DRO] 5-Axis-EMC

PMeinhard@... wrote:

> Everythink was clear to me until we bought a Micron-5-Axis Center.
>
>
> At the micron the basic -circle has a diameter of 1" =25.4mm. ( but it can be
> changed in the mashine-setup) and "G01 B360" lets the rotary axis turn 4
> times.
> Is that our Problem ?

Ugh! I detect a massive kludge in this control. They didn't support rotary
axes, but you ordered on, so they just told the machine that B was a linear
axis with nnnnn encoder counts/inch.

> I think it is impossible for the mashine-controller to compute the fedrat of
> the cutter-tip on the turbine-blade . Too many variables.

Right. It is actually computing the movement of the center of the cutter tip
relative to the radius from the tip to the center of the rotary axis. This is the
best it can do without detailed knowledge of the shape of the cutter. This is
usually good enough, and a standard way of expressing feedrate to the
control. The CAM software DOES know the shape of the cutter, and has
to deal with the intricacies of what part of the cutter tip is actually touching
the work at any time.

> But that all is the secondary problem for me . I will be glad when my mashine
> starts working 5-Axis simultaniosly ( if the fedrat is o.k. or not.)

Really, it sounds like this control was very poorly setup, or the control
was selected without regard to whether it could handle the application.
I hope you have recourse with whoever built it this way or sold it!

Jon