Aluminum base plate
Replaced the PCB bottom on the
4x4x4x4x4 with a 3x12" 1/8th thick piece of 5052 aluminum.
The plate with holes drilled. I used the PCB as a template when drilling. The plate was then sanded to smooth the sharp edges and remove the burrs on the drill holes.
The aluminum base is much sturdier than the PCB one.
