Iris Keyboard Rev4 Middle Layer.
I wanted a few changes to the cases on the Keebio Iris Case GitHub:
1) Does not require stand offs, screws thread directly into the layer.
2) Supports not required. I have adjusted overhangs to be beveled, and modeled in supports. See photos for support cross-section (also included is a support-free model).
Designed for 1.5mm plates.
Feedback welcome.
Tested and printed on Ender3 using Filastruder clear PETG, using a .4mm nozzle and .2mm layer height. My prints benefited from a brim to avoid lifting. Supports snap off cleanly. (See support cross-section)
Left hand models provided. (obviously mirror for right hand use).
See "No Supports" model if you want to have your slicer add supports directly.
Feedback welcome.
The author hasn't provided the model origin yet.