I need to take OD from bacterial cultures grown on microplates, but with the available black microplate adapter for my Tristar2 Multimode Reader LB942  the leads of the plates were always scratched and measurements were not reliable. Hence, I have copied the adapter and made the lip a bit thinner, so that the plat and the lead will sit a bit lower. Works well for my needs. 

Printer Technology/Material : Polylactic Acid (PLA)
Printer Make/Model : Creality Ender 5 Pro

Segmentation Software : Prusa Slicer
3D Modeling/CAD Software : Thinkercad

Pre- and Postprocessing Instructions 
Remove from bed and use ;).