A socket for connecting a ESP-M3 modul. This thing can be used for flashing firmware or as a development adapter. Use jumper wires to connect your modul.

I made a flat and a tall version of the socket. In the tall version the connectors of jumper wires are covered by the housing.

Had to print it 3% scaled up on my Anet A8 to compensate material shrinkage and tolerances.