
I’m spending some time on the 3D model for the V3 of the dishwasher hardware. I made a dedicated PCB (see above) for the control interface that has a slightly larger form factor than an Arduino Mega. This permits four mounting holes to stick out past the Arduino when mounted in the stack. The previous version used a clip that grabbed onto the top PCB in the stack. It worked, but there was always the chance that the relatively heavy stack would slowly slip off the header pins.