I made these model for a friend keyboard, so far the holder is too tall (don't use it yet but can try if you have 3d printer to print it). For _Holder model please fix model in orca slicer before printing since i didn't really care to fix the model just as long the model is printable even with fix non manifold edges in orca slicer i guess its fine, for the STEM i did remeshed it first before uploading here. Also the holder is in work in progress while the STEM is useable

Print setting recommendation :
0.2mm nozzle if you have it since 0.4mm nozzle wont able to print some detail

Credit for providing the reference photo and guidance on the model : aksa_tama (discord)