Originally Posted by
WheresWaldo
My latest iteration moved the center down to 30 mm from the top of the clip and out an additional 5 mm.
With the aid of some plastic sheet, PVC tape, and an old Garmin mount I have mocked this up.
One shows the long mount with the shorter initial 17mm design (the way I've mock it up means it also has the +5mm depth). The 500 unit just fits under there (would be just OK with the original shorter design), but you wouldn't get a turn in to release the GPS.
The other set of photos shows the second design (30mm to centre). This allows a turn in the mount and the GPS to be positioned either direction.