iPhone Mag Mount puck for car mounting

thingiverse

Notes: 1. This is a magnetic puck to fit into a car mount like the IPOW CD Slot Phone Holder. This is **not** a complete car mount. 2. The magnets are still not strong enough to hold my phone in the car with my cheap silicone case on, but it is plenty strong _without_ the case. A genuine magsafe case would probably work fine, but I haven't tried it. 3. I don't know if the magnets interfere with navigation. Haven't tried it while running Maps. Background ========================== I got a new iPhone 12 and wanted to build a DIY magnetic car mount rather than spend $40 from the usual suspects. I tried the "DIY iPhone Magsafe" by katzmatt but the magnetic field was not strong enough to overcome my case.https://www.thingiverse.com/thing:4644828 I borrowed his idea and sketched it up from scratch in Fusion360, increasing the number of magnets in the ring - from 18 to 30. My design does not have space for a charging coil like kazmatt's. Mine does have a slight 'foot' to be grabbed by my iPow car mount. Parts I used in this project: ========================== 5mm Magnets (design takes 30, but this Amazon product contains 216 in this package) https://www.amazon.com/dp/B07XBG81WN/ref=cm_sw_r_tw_dp_Bq-TFbHWKER7V?_x_encoding=UTF8&psc=1 IPOW CD Slot Phone Holder https://www.amazon.com/dp/B00VEAF6SG/ref=cm_sw_r_tw_dp_x_gn-TFbKQ8JD8V Green Magnetic Viewing Film https://www.amazon.com/dp/B000UV6ZPS/ref=cm_sw_r_tw_dp_6E-TFb3MHANQ4?_x_encoding=UTF8&psc=1 Black PLA from the usual suspects