More pintable parts for old Russian boxcar

thingiverse

I admire AIM4's models and have been trying to make some. However I've run into some print-ability issues and these tweaked parts are designed to address this. 'NTV-Frame with axle box bosses' modded from 'NTV-Rama'. Added larger bosses for locating axle boxes to aid in accurately placing the axle boxes. 'NTV-Side with door filler' modded from 'NTV2-Front'. There is a void between the door and the side. See the screenshot, The lower track for the door also hangs in space. These have been corrected. The photo with three sides shows the results of trying to print the original file, an earlier attempt at a mod that resulted in over-extrusion, and the current modded file' 'NTV-End with coupler boss' modded from 'NTV2-Side'. There is no coupler fixing on the model. I added a boss with a dimple that can be drilled out to allow a coupler to be fixed. Additionally I added a couple of parts. 'Coupler loop 5' and 'coupler loop 36' are simple coupler loops. I've seen modelers that have simulated American link and pin couplers in HO with simple loops and a bent wire or staple as a combined link and pin. '5' is 5mm across allowing a 1.5mm pin, '36' is 3.6mm across for a 1.2mm pin. I separately published a British style hook as thing https://www.thingiverse.com/thing:4594292 if anyone wants to try a real hook and chain. 'Corner glue block' is a simple 6mm block to simplify gluing the ends together. I made the modded files by simply combining new object to the existing STLs. As such, your slicer may complain about non-manifold or similar issue, but the objects should slice and print I intend to publish a build of this car one I finish painting it. The build will have additional printing and assembly comments.