46' Tipper Skeleton (HO SCALE)

Credit:
First off, credit where credit is due: Thanks to Kraftrains and their "HO Scale 45ft Flatbed train car" where I sourced the hardware from, they're great, couldn't have done this without them, their stuff has really gotten me into 3d printing and modeling by making it accessible so thanks! Also thanks to Firelightphotography's "Log Bunk for Logging Cars" that I used as the tipper cradles.

Story:
Anyway, so remember that cousin? Well anyway I wanted to give him some industry to play with (Aside from the calypso tonix) that was kinetic to engage him more, so that's what I did.

Assembly:
So, this is a really simple concept but it's hard to explain so imma do my best, I'll supply photos later to help.
Basically find the chassis half that is more angled than flat and glue the semicircle upright on the right edge with the long bit pointing away from you. it should be perpendicular with the edge of the car and as close to the edge of the car as possible. Then take the tipper