These are a series of bed leveling knobs. They come in 60,50. and 40mm versions (Diameter). There is a version for heat inserts, embedded nut, and also one with a cavity at the bottom for a removable nut.
For those wanting to use the embedded nut or alternatives that utilize a nut of some kind, I suggest you print the tolerance test piece and inspect how it fits the hardware you have, then scale it accordingly and reprint the test piece until you have a tight fight that hugs the nut properly in place.
There is no need for supports. Moreover, I will be releasing one or two more designs apart from the hexagon and swirl designs. I look forward to seeing some remixes.
If you enjoy the model please like and possibly leave a make. Thank you
The author marked this model as their own original creation.