We have designed this stand to integrate with the wall mount bracket supplied with the Amazon Echo 15 display.
We printed ours in Marble PLA from Bambu Lab.
Note: We use M3 Threaded brass heat inserts and M3 counter sunk machine screws to mount the bracket to our printed stand. (links below)
Brass Insert:
Vlookee M3 Threaded Insert 100PCS... https://www.amazon.com.au/dp/B0B4248K76?ref=ppx_pop_mob_ap_share
Machine Screws:
M3 Countersunk Screw with Nut -... https://www.amazon.com.au/dp/B09NQ7BBJN?ref=ppx_pop_mob_ap_share