Arduino Nano Bumper with added protection (for screw terminal "shield")

A simple "bumper" frame for a small Arduino Nano adapter “shield” with screw terminals. This version adds walls to both sides, so that components that are mounted onto the screw terminals are somewhat protected while handling the thing. 

My application is an Arduino Nano that is set up as ISP. The three LED (for Hartbeat, Communication and Error) are visible in the photo.

Printed using PLA, 0.2 mm layer height. 

If you don't need the sidewalls, there is also a version that consists only of the basic frame. 

Note that this is not for the “official” Arduino Nano Screw Terminal Adapter. The bumper shown here is for the smaller, simpler adapter that is visible in the photo.