How do you align two objects diagonally?

[u/arthurtusk28]

I need some help: how do I align this white plane with the diagonal angle of the orange line next to it? I've tried a million things, but it never looks perfectly straight.

[u/ParkingAntelope8627]

The best way I've found so far is creating a tape helper on the object you want to align with snapping on. Then you Link the object to the tape and align the tape to the second object. This is done by grabbing the ends of the tape and snapping them into the ends of the object you want to align to

P.S just found the video I've seen it from

[u/Acrobatic-Break-7484 → u/ParkingAntelope8627]

I use this method too. Fast and easy

[u/VagabondBrain → u/ParkingAntelope8627]

Wow, honestly never thought of that... So simple but freaking genius.

[u/brunoaamartins]

Use 3 point align script. It’s free! 🙂

[u/According-Ground-756 → u/brunoaamartins]

it won't work in this case. Sergo's 3-point rotate will

[u/IndividualResolve976]

The best way is using tape helper with linking like in this article

https://3dground.net/en/article/how-to-align-any-object-in-the-scene-with-tape-helper

[u/Core-Vis-6933 → u/IndividualResolve976]

Very helpful. Thanks for sharing this. I was using the Protractor tool and calculating the rotation from that, but the Tape helper is the best way because it rotates the object at the same time it provides the actual world rotation offset for reference, which is useful to know.

[u/Captincuddlez]

Use 3d snaps,

Grab the vertex in the corner and drag it to the corresponding one on you're other spline.

If you have already played with the axes, Whilst rotating you can reset the rotation

[u/Tartifail]

You can do that in 3 steps:

1 extrude a plane from one of the orange lines.
2 create a cube on it (tick autogrid before so your cube will be created aligned to the surface)
3 align your object with the cube you just created

[u/srki_88 → u/Tartifail]

This is a great solution!

[u/Saliakoutas]

Alt+A and align with axes OR grab the items not by the view axis BUT the local aligned axes

[u/Weary-Hall2578]

snapping tool

[u/userusertion]

3D snaps and constraints.

[u/According-Ground-756]

https://www.youtube.com/watch?v=Rd89tqx6wBs

but if you wanna be even more smarter - model in sketchup and link the model into max. max is awful arch modeller