OnePlus 7 phone mount with expanding clamps
Description
I recently bought an MX-5 NB which had an aftermarket stereo with a pocket beneath it. So when looking to mount my mobile phone I wanted to try using that as a mount point So I designed a simple expanding clamp fixture, with a bottom plate, top plate 4 parrallel arms and using bamboo skewers for pivot pins. with a expansion spring of the right length held between two of the pivot pins on the diagonal , you can expand the spring by pushing the two plates over, slide it into the pocket whilst compressed then allow the spring to create a clamping force as it tries to pull the system back. I stuck some rubbery tape on the top/bottom surfaces to give a little more grip for the clamps The oneplus mount is setup to be horizontal, and clamp a cheap usb c cable in the correct location I used some m4 nuts/bolts to clamp the usb c in place. Similarly the holes on the back rail are the same spacing as the two holes on hte expanding clamp. I printed up a pair of the expanding clamps and bolted them to the rear rail of the phone mount to adjust the position where I wanted it.
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