Dynamic block with alternating objects

[Chris]

Hi, 

I'm currently creating blocks for our office library. One of these is a grille with some apposed blade dampers on it. I'm trying to set up an array that will duplicate the apposed blades as I change the length of the grille. However, it will only copy the blades in pairs, not singlely one after the other. Ie, the blades are 100mm apart, and in a / \ pattern meaning that each instance of / or \ 'should' duplicate every 200mm. Except when I lengthen the block by 200mm it won't duplicate untill I've gone double the distance (400) when it gives me both / and \. 

Does anybody know of any solutions? Or if it's possible?

[ojuris]

hi! Check this version Regards Juris

[Chris]

Hi ojuris.

Please explain? I'm using autoCAD LT 2011 if that's what you mean?

[ojuris]

no, I don`t mean that I attach file, but where is it - i don`t know I`ll try to draw again ...

[ojuris]

try to attach new file

[ojuris]

I can`t attach file

[Chris]

So I see. Can you describe what you did?

[ojuris · Accepted solution]

try download from here https://dl.dropboxusercontent.com/u/401581/Test.dwg

[Chris]

Thanks, that works.