The file '4 Channel ESP32 Relay Base 3D Printer Model' is (skp,stl) file type, size is 294.9KB.
Base for 4 channel PCB from china.
SKP in attachment so you can modify it as you need.
baza_przekaznik_4ch.skp | 277.6KB | |
baza_przekaznik_4ch_V6.stl | 132.7KB |