3D-printed Watch with Tourbillon

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This mechanical watch boasts a tourbillon driven by a 3D-printed mainspring, with a Swiss lever escapement that keeps it ticking for approximately 30 minutes. The accuracy is remarkably precise, with only one second deviation within one minute, depending on the print settings. The project showcases the rapid advancement of 3D printing technology, which now works more reliably and accurately compared to earlier generations of printers. However, this is still a highly advanced project that requires manual trimming of printing inaccuracies using watchmaker skills to prevent the watch from ticking properly. Designed with Autodesk Fusion 360 and printed on an Ultimaker 2, the watch's complexity demands meticulous attention to detail. Printing not only takes longer but also requires patience as the nozzle travels extensively, leading to under-extrusion issues. To achieve exceptional results, the hairspring must be printed in PLA, while other materials may compromise the watch's performance due to varying stiffness levels. Cleaning the heated glass bed with a mix of alcohol and water ensures exceptional adhesion, making it easier to remove parts without applying force. Assembly requires careful adjustment of the x- and y-axis on your printer to prevent oval-shaped minutes and hours wheels from jamming at certain angles. The project includes 51 downloadable and printable parts, along with pins and screws, which can be customized according to your needs. A key aspect of this watch is its ability to balance center of gravity through strategic infill levels, ensuring a stable and precise timekeeping mechanism. By switching off "combing" in Cura for the mainspring print, you can avoid unnecessary traveling moves that lead to under-extrusion issues. To assemble the watch, follow these steps: 1. First, align the Spring Barrel like in the picture below. 2. Then, slide it into the case as shown in the video at (2:49). 3. Next, use the Pawl Unlock Key to keep the pawls in place during this assembly step. 4. Finally, fully unwind/relax the Main Spring when the watch is not used. With patience and attention to detail, you can enjoy building your own mechanical watch that showcases the capabilities of 3D printing technology. Have fun!