This Proto Gnome remix is a 45rpm record adapter for large hole 7" pressings.

In honor of Jerry Garcia day in San Francisco and the Days Between week, there is also a Grateful Dead-themed "head" gnome with the 13-point lightning bolt that was recently uploaded on the Thingiverse.

Turntable post reference included.

MendelMax 3

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No

The ProtoGnome model is excellent for experimenting with variable layer height features in your slicer.

I use KISSlicer and base the layers on a percentage of the nozzle diameter.

Spin it.

The stl was scaled slightly to fit the larger stamped hole of a 7" 45rpm record (37.8mm). The height was adjusted slightly as well to the height of 80mm to closer match the original proportions.

I used the boolean tools in Meshmixer to subtract a hole for the turntable post to fit ~7.25mm posts.
For the Jer-gnome I performed similar boolean commands for the lightning bolt insert.

Check out the detailed Meshmixer Boolean Tool help here:
https://help.autodesk.com/view/MSHMXR/2019/ENU/?guid=GUID-355503DE-889B-4168-8398-084F9BBD508B