As I understand it, if I am self-certifying a device, I can prove my device is compliant by testing or design.
I will be assembling the device using a collection of CE and ROHS compliant components - a vacuum pump, a motor driver, and an AC/DC power supply. I will be adding in a power button to power the array of components on and off and wiring to link the various components together.
Can I claim the device is CE compliant by design, since all parts in the system are CE compliant, assuming the wiring is safely and properly soldered in?