Make two reference lines always perpendicular to the reference line in between

[Anonymous]

 

Hi,

Any thoughts on how you make the two reference lines (red mark) to stay perpendicular to the reference line in between (blue mark)? The reference line in between (blue mark) is driven by the parameter (l=2000), so any adjustments to (l) will subsequently make this line longer or shorter.

 However, ran out of ideas on making the red mark (reference lines) to remain perpendicular to it.

I can, adjust them manually by making say the point element (below) to remain always equal to the point element above but is there a way to do them automatically (by letting the program do the calculation by itself without having to adjust the angle each time i change the length (l))?

Any thoughts would be appreciated.

Ta!

[Ilic.Andrej · Accepted solution]

To make the perpendicular "relationship", use angle dimension (90deg) and lock it.

The program can do the calculations with the use of formulas.

Describe the final goal. This would help us understand the problem and give the best solution on how to constrain the model.

[Anonymous]

Hi mate,

Got them to work. Guess I was overthinking things before so was adding things everywhere like nodes etc.

Guess I'm to blame because was watching this channel with regards to the application of inverse kinematics by Marcello Sgambelluri in Revit (and the excitement in me wanted to apply what I saw).

All I ever needed to do was the very first idea I thought of doing but rejected it thinking that it was so basic, how can that possibly work? Well it did.

 

Thanks heaps! If I had not analysed your comment correctly, would not have thought of just making things perpendicular from the very beginning.

Cheers mate!