However there are several flaws that make it impractical (especially in the winter):
- HEAT! Electronics hate heat. Especially batteries. My cell phone once warned of an overheating battery.
- The large binder clip won't firmly grab the small fins on the vent.
- Not easy to position toward the driver or passenger.
- Rubber bands dry and break when exposed to heat and sun.
I set out to remedy these shortcomings but kept with the spirit of using only office supplies!
Step 1: 3 Binder Clips and a Pen
To make one, you'll need to sneak into the office supply cabinet and "borrow" 3 binder clips (small, medium and large) and one Bic pen.
The cap on the pen should fit very snugly (or glue it in place). It should slide down the med binder 'vent' clip but the cap should stop it from going further. Snap the small binder to the pen shaft well out of reach of the car vent. Finally attach the GPS/phone clip (following the other instructions) to the handles of the small clip.
If you use rubber bands, prepare to replace them every week when they inevitably break. Instead use silicone bands. I found a couple holding one of my kids toys in the packaging. Maybe someone can suggest a good cheap (free) source - perhaps in in the produce isle in your local supermarket holding herbs together?). I tried springs, but they didn't work as well.
I placed shrink tubing over the GPS holding 'arms'. This prevents metal from scratching the GPS and allows a bit of friction to keep the GPS from sliding around.
Extensive testing (15 minutes this morning ;) showed it holds the weight but vibrates a bit. Not enough to worry much, but I wouldn't recommend this mount for a road rally.