Generating an ellipse using value Motion

[Himanshu]

I am looking for any new idea to generate an ellipse using value motion library and PCI 7324 cards.Gearing function for stepper motor is not available in value motion software.

[Jochen]

The ValueMotion boards only support simple linear point to point vector moves so there is no way to generate any curved profiles with this board type.
The boards of the 7344 series (FlexMotion) support various types of motion modes like circualar interpolation or contouring mode where you can download arrays of position data to the board and the board interpolates the move through these points.
You can find more information about the 7344 board following this link:
http://sine.ni.com/apps/we/nioc.vp?cid=10026〈=US

Jochen Klier
Application Engineering Group Leader
NI-Germany

[Himanshu]

Well all I need to generate the ellipse is to drive the x and y axis in a ratio. Can we change the ratio of RPM of the two motors using value motion boards.I just need to change the ratio of RPM of the two axis x and y and my ellipse is ready.
Any suggestion about changing the ratio?????I think by some way or the other we can certainly change the ratio of the two axis.