Ok, having had that print failure I've made some adjustments and modifications to my Ender 3 and of course wanted a test print. But while doing it and browsing "Thingiverse" I found this model, it is basically a hexagon frame that someone has designed for displaying Lego Mini-Figures in, but the wrinkle is that they are connectable so you can make a display any shape you wish. As this needed to be printed acurately to allow the hex's to connect properly it seemed an ideal test. But having printed 4 of them as a test I'm so impressed I intend to print more, I just thought I would share with you to see what you think;
Happily collecting things all my life...