Modified 16mm scale Diesel Loco - 32mm gauge version

thingiverse

Firstly, I'd like to extend my gratitude to arockStone for creating the fantastic Diesel Loco model! Without such an excellent starting point, my modifications wouldn't have been possible. My 32mm gauge garden railway is relatively small, and I wanted to emphasize its narrow gauge character by modifying the chassis. To achieve this, I had to modify part one of the frame_1b.stl file to reduce its width. Since I print in ABS, there's also a potential warping issue with the raised portions of this part, so I split the long flanges into separate parts (base2.stl, 2 copies needed) which can be glued to base1.stl. Once I started making changes, I got carried away! The frames (frame_V4.stl, 2 copies) underwent several modifications: - I added hangers and made the spring leaves visible by modifying the suspension details. - I removed the lengthwise flange to give the loco a more streamlined look. - I reprofiled the frames and added cutouts to make dummy brake gear (brakes3.stl) visible behind them. The buffer beams (buffer.stl, 2 copies) were also modified: - I made them rectangular with some bolts added for extra detail. - I increased the size of the coupler slots to ensure a secure connection. - I reduced the hole size for the coupler pin, using hard brass wire pins instead. The hood underwent several changes as well: - To fit R/C to the loco, I couldn't afford to lose space taken up by the dummy panels 22 and 23 in hood_3b.stl. Instead, I made a cut-down version of the engine (engine2.stl) with the transmission removed and can be fitted next to the electric motor. - There's space in the headlamp to fit a surface-mount white LED and resistor, illuminating the lamp. The lamp.stl was modified to have a tube through which fine wires can be passed (just drill a hole in the hood top to pass the wires through into the engine bay). The lamp bezel and lens remain unchanged. - I made a more complicated silencer/exhaust pipe (exhaust2.stl) and modified the hood top (hood_tp.stl) to support it. - I added a horn (horn.stl) to increase the 'clutter'. This and the exhaust are printed in two halves and glued together. To hide the batteries, I made a console to fit in the cab. There's room to fit a double AA battery holder inside. The console consists of: - A base (batbase2.stl) which provides space for a switch to be fitted underneath while the battery holder sits on top. - A front panel (panel.stl) to form the battery box. - The console top (console.stl) with a couple of dials, switches, and a throttle lever. This just pushes into place to cover the batteries. For some final details: - I added steps (step.stl, 4 copies). - A tank (tank.stl - glue the two halves together). The 'flats' are for fitting under the footplate and against the frame. - Finally, a nameplate (MrGrumpy.stl). Unfortunately, the choice of name seems to have been rather prescient – I'm having terrible trouble getting the R/C gear to work! Note: I've only provided STL files for my modifications, so you'll need to download the original model by arockStone (https://www.thingiverse.com/thing:2109286) for the rest of the parts. Last but not least – thanks again for the original model without which none of this would have existed!