Cool design! I printed with 105% size since i figured it might be somewhat small for a standard size mat? Glad i did. It's still somewhat tight but it fits, that's what matters, right. I used Bambulab Basic Black, Basic Silver & Silk+ Gold. Also modified the inner sections where the tubes connect, to also have a gold brim and used silver for the couplings. I hoped for a more chromy look on the couplings, guess I should've used Silk+ Silver instead. Anyways, looks really nice, I'm happy for the result on the first print.

Printed perfectly out of the box on my A1 mini. Even the lid spring printed perfectly in place. You have to gently twist and bend the lid and push all the pieces to break their supports. Genius design.. Really amazing what is possible with just PLA. Pro-Tip: make sure to print the pieces with 100% infill as suggested. Or fix the flag later and cut away at the top like i did xD