The Front Driver Section (FDS) frame supports have been removed. The amount of residual green ABS is similar to the amount remaining when the Main-Intermediate Driver Section (MIDS) immediately after removal of support material. The front view above shows very little remaining support material, most of it is on the rear side of portions that were horizontal during the printing.
This includes the cross brace and forward edges of the slots and vertical portions of the frame. The material is relatively thin strips of green ABS that are removed with either an thin sharp model knife or the Dremel tool sanding wheels or small cutter.
Virtually all of the green support residue has been removed from the MIDS frame and it is ready for paint touch-up.
The two frame portions (there are a total of six) are designed with interlocking mating features that will be glued together to form the overall frame.
The FDS and MIDS frame portions mate quite well and once the FDS is cleaned up the two can be glued together. The combined FDS and MIDS portions provide bearing slots for the Front, Intermediate and Main drivers. On the front of the FDS portion the Pilot-Cylinder Section (PCS) will be installed. The large cylinder structure, pilot deck and cow catcher at the front of the locomotive mount on the PCS. The rear of the MIDS frame will attach to the Back Driver Section (BDS) which will provide the bearing slot for the Back driver. The BDS frame will in turn have the Trailing Truck Pivot Section (TIPS) attached and the final frame section will be the Aft Boiler-Cab Section (ABCS).
The two sections above are 8.5" long when joined. The remaining four sections will extend the frame structure to 20.98" overall length. Beyond the frame the front coupler and tender coupling will add a small amount of length to 23.29" approximately. That will include just the locomotive. The tender will add a separate amount to the total model length, making the display about 3' long overall.
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