I'm told that 3d printing is cathartic. I can believe it. My partner in crime (he owns everything but I provide the garage) has suddenly become quite the guru in the realm of 3d printing.
The first thing he did was a bunch of the ZW transformer parts that insist on breaking. These look to be strong and thicker. I think he made 3 or 4 of them. The black and white ones are shown in the pic.
Then there was the matter of the EL track which became necessary since the 031 track wouldn't, um, track, at least not for the ultra long passenger cars. Elegoo to the rescue with a pile of trestles, made to fit the new 061 track nicely.