problem with linear light track with array

[james.levieux]

Hi All,

I've never seen an array behave like this before. It seems to be impossible to align the array of light heads in the vertical direction.  File and video attached.

Regards,

James

[Alfredo_Medina]

Before repeating elements in an array, the first and last elements need to be constrained, ideally in 3 different planes, so that they don't deviate in any direction. I recommend you to watch this video, approximately from minute 10 to minute 25:

https://youtu.be/hwRpAhSVSR4?si=dhXvFPzGcEF0Yduk

[barthbradley]

Geez Louise! I share your frustration! I threw in the towel by nesting the track head into a face-based family template, then nesting the FB family into the host track family and putting one instance on the under face of the housing.  Then I arrayed it.  Works like a charm as you can see here: 

 

[james.levieux]

Yeah, that was a bear.  I finally was able to solve it too, but just a bit differently.  I modified the nested fixture to non-workplane based and positioned the light geometry under the reference plane.  After I loaded the light fixture back into the track family, I was able to lock the light to a reference plane and everything worked.  It sure seems that workplane-based families sometimes don't play nice with arrays!