Helix Rotation Change using iLogic

[matthew.greenDLCDJ]

I am trying my best to figure out how to change a Helix by iLogic.

I can change the helix's parameters but I have not been able to figure out how to change the direction?  Any idea how or even access to display it.

[johnsonshiue]

Hi Matthew,

For changing Helix direction, you will need to use Inventor API to edit the Helix and make the change.

Many thanks!

[matthew.greenDLCDJ]

What about VBA as an option?  Can it be done through another means other than the API?

[AdamAG99T · Accepted solution]

Unfortunately unless things have changed since this post it looks like the helix properties are not exposed to the API which means it's basically impossible to edit them with iLogic or VBA. I did a bit of digging in the API documentation but couldn't find anything for helical curves or helix. At best you may be able to play with the coil feature depending on what you're trying to accomplish, since that is exposed to the API and can be used with iLogic or VBA. The documentation for that is here. To clarify, the API is essentially the way inventor communicates with VBA or iLogic programs, it's not it's own separate way of programming. 

[johnsonshiue]

Hi Adam,

I think the API is indeed available. CoilFeature.ClockwiseRotation() is a Boolean property. It can be set to True or False to control the direction.

Many thanks!