This is a remix of my original with specific mounting for a Scosche magnetic mount. This adds mechanical grip in addition to the magnets.
I designed this for use in my Lotus Elise which has very stiff suspension and can be much bumpier in use. It's not necessary in my SUV.
UPDATE - I have now uploaded a new model based on extended testing in a "bumpy" car. The "Stronger Model..." version has a slight hook to the top and I've also added venting. This new design has proved very successful.
I am very much an enthusiastic amateur when it comes to designing. My designs tend to have two things in common
1) They serve a purpose. I like to design functional objects which have a real-world use. 3D printing for art is fine, but it's its real-world application which will take the technology forward
2) Wherever possible I design to be easy to print and try to eschew supports or complex printing; modifying the design where necessary and possible to achieve this.