Hello here is the Espressomachine cleaner I made recently. Its driven by a 12V DC motor. The trigger is integrated in the frame and activates by pressure. The rotor diameter is 55 mm so perfect for 58 mm coffee machines.

The requiered parts are listed below:

4x M3x10mm screws

2x M3x10mm Flathead screws

1x 12V DC Motor with transmission: https://www.amazon.de/dp/B07FT95BZD?ref=ppx_yo2ov_dt_b_product_details&th=1

2x Micro Switches: https://amzn.eu/d/gWD9SYF

some wires

1x 9-12V Power supply

I hope you enjoy this machine!