ElTristan

Kris, I really want to see those structures print well -- looks amazing! I'm not familiar with the Qidi tech x-pro you're using, but is it enclosed already? You may still want to try putting a large carton over the whole shebang to insulate it thermally and to stop drafts while printing. I'd guess your build plate is warm enough because the lowermost layers aren't delaminating -- make sure the plate heater isn't turning off? Failing all that, breaking the model into smaller chunks for printing sometimes helps. gl!

I came for the C&O historical fiction but kept reading to suggest that, regarding Talltim's query, they used to quarry the "oro blanco" from the salt ponds at Las Salinas de Janubio in Lanzarote. A small operation, with not much to see for the tourist. But I can think of two historical examples of extensive narrow gauge salt railways -- the Leslie Salt Company (later Cargill) in Newark, California and the Western Salt Company in San Diego, California -- which looked and operated much like peat bog railways. On Lanzarote, there's apparently plenty of clay soil to expand the salination ponds to the required industrial magnitude. Should that have ever occured, the sight of salt being dumped into rakes of side-tip hoppers on portatrack as it's mechanically stripped from the crystallization ponds brings tears to my eyes...