BMW i3 Magnetic Phone Mount

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A custom phone arm is designed to securely hold a phone in place using magnetic force, perfectly situated within the leftmost cup holder position in a BMW i3. This innovative design necessitates the use of rare-earth magnets, specifically 18mm by 3mm or 6mm in size, which can be easily sourced from retailers like Home Depot. To ensure a secure hold, a piece of rubbery material is carefully cut out and glued into the front recess - a shelf liner works perfectly for this purpose. When printing this custom phone arm, it's crucial to use plenty of support material, with one side of the attachment point resting on the bed, to achieve optimal results. The part that attaches to the cup holder must be precisely shaped and sized to guarantee a seamless fit.