This 0-4-0 Porter locomotive is modeled after Coronado Railroad of Arizona #2. The prototype is 20" gauge, and this model is designed to fit on Z scale track. It is a static model intended to spruce up a mine scene, an industrial plant, a flat car load, or perhaps a park display. It prints as one piece, just needs cleaning up and painting. It did sucessfully print and came out great- but I will caution this material is a little fragile. It arrived in one piece okay, but did break when I dropped it on the floor :( Thankfully, it does glue back together well with super glue. The cab roof supports are thin, and you may want to back them up with wire to make them a little stonger.
This isn't an exact scale replica. Many dimensions were estimated or altered in order to produe a model that is printable and that looks good.
I modified the original version to include slightly thickened cab roof supports.