RAM Mount adaptor
thingiverse
A parametric adaptor plate model, compatible with RAM Mount mounting hardware. Refer https://www.rammount.com/ As presented, this adaptor integrates a RAM suction-cup base with an off-the-shelf phone cradle. See photos. You're free to tweak the design however you wish. Note: When viewing the SCAD model, you need OpenSCAD version 2016.XX or better Reasoning is because earlier versions don't fully support rotate-extrude(....) macro.
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