Gidday Dave, “Build a working coal tipple” by Jim Ferenc, Model Railroader, July 1999. (PVC pipe, a 1" auger, and a windshield wiper motor are the key ingredients")
Bear, Wow, C & O’s loader is exactly what I was looking for. I’m not a creative person but I’m going to give it my best to replicate his loader, any additional information on list of material ( does it matter what servo is used?), any helpful drawings ( no matter how crude) is much appreciated. I also would like to do his rotary dumper to com
Apparently any motor that can be geared down to drive the auger will work:
Jim Ferenc used a windshield wiper motor - Junk yard purchase.
For my pre-production experimental design I rigged a high-RPM motor with a 750/1 reduction gear set - both from my junk box. The motor came out of a junked printer.
As for superstructure, the basic unit can be hidden under the Walthers New River Coal Mine, the Glacier Gravel structure, the old Jack Work coal mine (with a little ingenuity) or a set of bins scratch-built from photographs.
One little addition. The loadout I’m modeling had a concrete wall about three feet high between the tracks under the bins and the bypass tracks next to them. If you put the rails on longitudinal supports over a suitable hole (think ash pit) anything that misses the gon or hopper will fall through into a funnel leading to a catch can. Much more convenient than having to collect it with the Shop-Vac.
i later made a ramp out of plastic to fit inside the tipple and painted it gloss black and added a cell phone vibrator glued to the underside to help the coal slide down to the auger since the ramp didn’t have enough angle