modeling difficulty (setting reference plan or managing perpendicularity)

[_Force]

Hello, I have to model a piece in alias made of panels that follow a curve and parts in the middle that connect them "flatable" that I intended to realize with subspecies of cylinders.
I have two problamatics:
-The panels not being tilted according to no reference axis can not be moved and turned accurately, can I create other reference plans that are not x,y,z?
-uniting the panels with the inflatable plastic part is quite problematic precisely because I don't know how to move reference plane, so I have no way to create curves with the desired inclination. . .
I attach a project file with panels already in some way positioned and missing of plastic inflatable part.
thanks in advance for the help

 

[Fulvio Romano]

Sure, you can use all the reference plans you want. Now I don't have the software under my hand, but still search the "reference plane" palette. There are various ways to create them, for example for three points, for one point and one vector, etc.

the software creates the plan, then with the "toggle reference plane" command you can select the building plan you want to work on, or return to the world coordinates.

try, if you have difficulty place a little screenshot.. .

I don't understand the second question, but I think I understand that it can be solved as before. I can't open the file because as I said I don't have the software in hand. As soon as I can see

 

[_Force]

Thank you very much, as soon as I try