I do apologise for the late reply but the BIS Sand PAA from Northern Bridge 3D Models has progressed (relatively well) since then. The parts are very nice, it’s my first time working with 3D printed parts. I did manage to lose the end horizontal ribs members but some Evergreen strip was substituted. Very minor filling and sanding between the hopper lid and the hopper to get a smooth transition.
The work undertaken was to:
Removed all the moulded detail from the chassis
Removed the Hornby PGA sloping ends with a razor saw
Stripped the paint and printed "graffiti" from the CAIB model using Mr Muscle oven cleaner, the graffiti took a few goes..
Added:
Northern Bridge 3D Models ends and canopy
51L 16” Oleos
6 spoke etched brass handweels
0.3mm diameter wire for the air brake pipes
0.45mm diameter wire for the control cables pipe (I think this is only on the BIS liveried ones)
Etched Brass Ladder
Olympia Models Westinghouse Air brake tank and distributor, also from Shapeways – it’s actually for the Yeoman PGA006 (PR14000 series) with the base cut off. I was going to add 51L’s white metal ones but they didn’t quite look right to me
Some cosmetic etched brass coupling hooks and bases
I also noticed that at least some of these had brake blocks fortunately just as I was about to fit etched disc brakes to the wheels so might have a think about how these could be done, I think the 51L PCA tank wagon kit might has some.
At least one of the wagons, BIS7944 has black air brake tanks and floors between the sloping ends and the hopper ends compared to the majority which had white tanks and floors which will help hide the scars. Thanks to Paul Bartlett for posting the photos above. Shapeways blog recommend Tamiya fine primer for their materials so I used this rather than Halfords but I’d imagine it makes little difference. Once primed I noted that the hopper lid was much rougher than the surrounding plastic so I think some Tamiya Mr Surfacer might be required to get a uniform finish.
During searching for details, I found some nice photos of the wagons on flickr including some in small numbers 3 and 6 wagons possibly for repair: https://www.flickr.com/photos/16313630@N07/6646613999/in/photolist-ko6MyA-9oESg1-Ww28iP-fuEhKw-jB9eMH-8hyn9B-nGWcEP-8DFAjK-8Ma186-9QAqvu-7VJrZU-b8kCM6-pMph1h-7XqUQ8-8M9ghW-7S9ejv-8DRFhh-8xLxsV-8xLzy4-8vSnNi-dEBimg-9VBn2R-8faw3P-9MGmfc-b7ynPc
Artwork is available but I haven't had these printed yet. There also seems to have been all over white versions.
Overall a very pleasant and fairly easy conversion of the Hornby PGA.
Some pictures I have handy: