I have one pair of trucks left from what I bought, so what to do with them? If I am ever going to have a RR I will need something to haul ballast. So I took some GR 1:22.5 plans and added 11% to the dimensions to build a drop-bottom hopper. First we have to rip some wood. I am using Western soft maple, you see of the left what I am cutting it from. I have a stash of those short pieces.
Next Glue up the frame. In a jig to keep it square
Now the sides. In a jig as well.
The sides and the end brace and angle brace done.
The sides and bracing glued up, bottom pieces in the background.
Next the bottom pieces glued in.
And then on with the underframe detail. Sorry no Brake rigging.