curve from a sketch
I work in WF3.
I want to move a part in an assy along a certain line which I have sketched.
It is a simple sketch (straight line/tangent curve/straight line).
I create a ASM-datapoint on the sketch and use "ratio" to decide the point's relative position along the sketch.
The moving of the part is controlled by adjusting the ratio between 0 and 1.
Now comes my problem. The datapoint will not move along the full sketch - it will only move within the segment of the sketch where I defined it. I believe I must convert the sketch to a curve which I have tried, using <insert;datum;curve;copy>. Although the resulting curve appears to follow the whole of the sketch, the result is the same. When defining the data point, it will only move within parts of the sketch.
I might add that if the sketch only consists of 1 item it works as intended.
How do I convert my sketch to a chain which the data point regards as one curve?
Using the option "through points" will only get me an approximation.

