https://leopoldfritzsche.de 2026-03-23 daily 1.0 https://leopoldfritzsche.de/assets/images/image03.jpg https://leopoldfritzsche.de/assets/images/image04.jpg https://leopoldfritzsche.de/assets/images/gallery02/378dc3a9.jpg The CAD-model of my idea. https://leopoldfritzsche.de/assets/images/gallery02/dbadc965.jpg The first prototype. https://leopoldfritzsche.de/assets/images/gallery02/7452ab86.jpg The corner radius matches the radius of the smallest Euro coin. https://leopoldfritzsche.de/assets/images/gallery02/ced05bc8.jpg The coin tray also fits keys. https://leopoldfritzsche.de/assets/images/image01.jpg https://leopoldfritzsche.de/assets/images/image06.jpg https://leopoldfritzsche.de/assets/images/image02.jpg https://leopoldfritzsche.de/assets/images/gallery03/228e3ce3.jpg The workspace during the process of designing the pet's housing. https://leopoldfritzsche.de/assets/images/gallery03/bed74c6d.jpg Bending copper wire to act as a touch sensor. https://leopoldfritzsche.de/assets/images/gallery03/3db6e5a7.jpg The final prototype, still charging. https://leopoldfritzsche.de/assets/images/gallery01/7d9875a4.jpg First sketch of my idea. https://leopoldfritzsche.de/assets/images/gallery01/2edcab7e.jpg First prototype with springloaded arms. https://leopoldfritzsche.de/assets/images/gallery01/5c2ea9b4.jpg Prototype with a connection based on friction. https://leopoldfritzsche.de/assets/images/gallery01/46f14af9.jpg The final prototype with magnet connection. https://leopoldfritzsche.de/assets/images/gallery01/3a2a0049.jpg The back of the frontplate. https://leopoldfritzsche.de/assets/images/gallery01/cb137faf.jpg The presence sensor finally installed. https://leopoldfritzsche.de/assets/images/gallery06/fe2fbd2d.jpg The drawn concept of the UI. https://leopoldfritzsche.de/assets/images/gallery06/7ce63622.jpg The final UI, installed on the Raspberry Pi-powered display. https://leopoldfritzsche.de/assets/videos/video02.mp4.jpg Video02 Uploaded video. https://leopoldfritzsche.de/assets/videos/video02.mp4 https://leopoldfritzsche.de/assets/videos/video03.mp4.jpg Video03 Uploaded video. https://leopoldfritzsche.de/assets/videos/video03.mp4