starting:
https://mandalorianmercs.org/forum/index.php?topic=164460.0I came from the size of the clone trooper figure Hot Toys, in the picture. And created on this basis backpack. Later created drawings of the finished backpack, so others can build your backpack easier.
The large compartment of my backpack, back, sides. Work with PVC 5 mm.
Back, two sides, bottom. Separate part of 5 parts + pipe


The pipe is attached to the bottom of the backpack: rope or wire. Not glue. Find your way.

The second compartment and the front convex part of the backpackHere you will have 4 parts: a wall between the compartments, a convex front wall and two side rounded parts.

Pockets (assembled separately). Not functional.Pockets of different thickness, the walls on the front side are smoothly curved. You need to calculate the angle relative to the front of the backpack.

A lot of angles for the lower pockets. Small parts.


All items of the backpack should be sanded with sandpaper, if necessary, fill in the cracks, and then proceed to the Assembly.

before painting:

..............
after painting:
Fastening straps inside the backpack, build up inside layer for strength.

Medical device logo, pollution, top cloth cover



Continuation of in this topic:
https://mandalorianmercs.org/forum/index.php?topic=164460.0 
My article in Russian:
https://vk.com/@foxcosplaycraft-clone-backpack Good luck!