Can I change the slope of existing beams

[Andre Baros]

I have someone in my office who drew a flat roof and added structure beneath it. Now they are coming around to setting the slope of the roof and the trusses aren't changing with it. Before I tell them to draw a reference plane and redraw the trusses (which took all morning to draw while learning about arrays and the joys of groups) I wanted to make sure that there was no way to rotate a beam (or for that matter a level).

Thanks,

[luigi]

Hi, unfortunetely, there is no way if the beams used are the standard ones. Those are dependent on the level plane. There is a special beam out there in the download of rugi and/or revitcity which is a beam dependent on the roof (which is a bit flawed I found out), if that beam was used then you would have a chance.

Sorry

oops, I didn't notice you wrote truss, instead of beams. Although I am less familiar with trusses, I believe the same applies to the them...

[Andre Baros]

OK, the trusses (beams) are redrawn and set to a new sloped work plane which was drawn between two set points. Drawing the second time is always faster. Now how do we align the roof to the beams. We can't pick the same reference plane for the roof as we did for the trusses/beams? As a matter of fact we can no longer pick any reference plane except the plan levels.

[Andre Baros]

Is there a way to align a roof to a plane or beam. The beams are drawn correctly and it woud be really nice to just pick the roof and align it to the beam (or align and lock it to the place used to draw the beams) right now we're using a slope arrow with the head set to one reference level and the tail set to another, but this still means that the roof and the structure never move together.

Thanks!

[mark_a]

If the bottom surface of the roof is selected as the work plane prior to placing the beams, if the roof pitch is altered, the beams move with the roof. There was a similar query and thread on this back about February this year.

mark_a

PS I don't know if this works with trusses

[sbrown]

Mark_a, thank you for that tip, I had missed it before. It works great, move this to tips and tricks.

[sarah.auffet]

can this work with joists also? my joists are not following the roof when i slope even though the WFs are.

[jwilhelm]

if you create a refernce plane and name it then draw your joists in that plane , you can rotate the refefnce plane and the joists will go with it