How to make a dynamic double door with two different surfaces

Step 1: Axis position
select left door (its axis is closest to the hinge point)
open the DC attributes. choose rotZ, place a value, the door will rotate about this axis at the inserted axis point,
you will note that values above 180 become negative co-angles
the rotation as per right hand rule for vectors

and for the right

that is because the axis and insert point is in line with the latch
so first line the axis with hinge points (right click menu)

then work the positions you wish to rotate from - to

then you can use the onclick attribute and add

animateslow(“RotZ”,0,90) to right, animateslow(“RotZ”,0,-90) to left

container doors and frame v1.skp (4.7 MB)