Use this mount to have your Nextion 3.5" display in an ergonomic orientation while developing your code.

Support material not needed. Print it standing on its left side, and add brim is you want to be on the safe side. Clean the four mounting holes with a 3mm drill, print the four spaces, and mount using 10mm M3 screws.

The connector is on the left side to make the SD card accessible. If you would like to have the connector on the left side, mirror the model in your slicer.