There is no way, as far as I know, to draw a perfect cyrcle without interpolating the two movements.

You can simulate it by remembering the relationship sin-cos between X and Y points of any circle.

So one axis follows the sin(x) law, the other follows cos(x) law

You gear them together to the virtual master and they will move independently, but the resulting movement will be a (quarter or more or less) circle.

You have to build your cams with lot of points, in order to reduce the granularity and use a poly 3 interpolation between one point and another one, but they must be very dense...

Regards

DavidBrown

Two axes have to drive an XY-movement.
I should want to construct the XY-movement by camming both axes to a virtual master.
I do not want to use path interpolation because my XY axes also need to be coordinated (cammed) to another movement.
I want the XY-movement to start with first moving only up (Y-axis), then combined movement XY, then only X-movement.
The resulting movement during the second part (combined X-Y) should follow a quarter circle.
The problem is that I do not know how to develop my cams so that I have a perfect (quarter) circle in XY-plane. Can someone help me in this?
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