Have switched from Prebs gridfinity case to the modern case by Matthew but I like lite versions, so this remix was born! I have printed a 6x6x6 version and it's plenty strong.

Not sure how to modify Onshape files so have just edited all versions in Fusion and uploaded the .3mf files.

There are no magnet holes but they can be added if requested.

Use the same print settings as the original. Warping might be more of an issue although I haven't noticed any, so gluestick or a higher bed temp may be needed.