HUO_90_1-153_17_3mm1ft_37_no_chassis

Hopper only 3mm:1ft 1/153 BR 24.5t hopper, with vacuum pipe. This model has been adapted in various ways since its first upload, and it is now very different to the 1/148 hopper model that I have uploaded before. It now has no end platform below the stanchions, and the outermost parts of the hopper chutes below floor level have been removed as these are now represented on the chassis that has been designed to fit it. These changes mean that It would be more difficult to use this model with the Parkside chassis kit instead of the specially designed 3D printed 1/153 chassis. The Parkside chassis is fine for the 1/148 hopper model, but not right for this 1/153 diagram of 24.5t hopper anyway: the  brake hangers are in different places and will need bespoke levers and shoes for the left hand wheels, the right hand wheels will need disc brakes, and the axlebox covers are oil instead of roller-bearing.
Please bear in mind that I have NOT tried this model myself yet so there may be more hurdles to overcome than I have mentioned, to get it to work with the chassis described. 
UPDATED MODEL 2020-06-08 with a bit of sprue for you to very carefully cut off under the bottoms of the end stanchions and the vertical termination of the vacuum pipe (try not to break this in the process) at each end of the wagon. This has been added because Shapeways felt that the end of the vacuum pipe was too thin, unsupported, which is a shame because it printed perfectly in the model of the same hopper with the matching chassis included. 

The special 1/153 chassis has been uploaded on its own, for use with this hopper when you have given up trying to fit a Parkside chassis to it, and it has also been uploaded as a single model including a body very similar to this one (just lacking the support sprue printability modification). If you do try to use the Parkside kit chassis with this body, I have uploaded some brake parts, but don’t  forget that you will need to build out the hopper chutes under each end of the body for them to look right from a low viewing angle.