For this year’s biking trips, I want to replace my worthy Garmin GPSMap 60Cx with my Nokia N810. But unlike the GPSMap, the Nokia is neither water- nor shock-resistant. I searched the web for a bike mount, but that led me nowhere. So I came up with a rather DIY’ish solution, which I started today:
I purchased a transparent Otterbox 2000. Unfortunately, there’s some imprint in the lid, even one containing an Otterbox sticker. I had good luck, as there was an air bubble under it. I pulled it out and removed the remaining glue with some dissolvent liquid (which fortunately did not harm the plastic). The lid is not exactly transparent but a bit “anti-glare”, but it is transparent enough to read the display of the N810 through it.
Next I needed some inlay to fix the N810. As the Otterbox is thick enough, there’s even room for a battery or headphone compartment. Short tutorial:
- Get a block of semi-hard foam of 154mm×86mm×38mm.
- On top of it, draw a centered rectangle of 128mm×72mm, the size of the N810.
- Draw a second rectangle within the first one, just offset by 5mm. This is for the second compartment.
- Draw two lines at the top side, at a distance of 100mm. Through this cut-out, the buttons of the N810 will be accessible.
- Draw two lines at the bottom side, at a distance of 40mm. This is for the thumb when taking out the device.
- Use a (very sharp) carpet cutter and cut the outer rectangle, but only 16mm in depth. Care about your fingers.
- Cut both the button and thumb notches, also 16mm in depth.
- Cut the inner rectangle through the whole block and remove this block.
- Now the tricky part. Cut around the inner edge at a distance of 16mm, but without cutting through the outer lip.
- Cut a chamfer of about 5mm to all 10 outer edges to fit the rounded edges of the Otterbox.
- Put it in the Otterbox and check if it closes without deforming the block. The block should not stick in the lid when opening the box.
- Place the N810 in the Otterbox.
- Glue some 2mm rubber pads into the lid to hold the device down.
- Place some thin foam or rubber in the lower compartment to avoid rattling of its contents.
- Mount the box on the bike. I already ordered a 60mm RAM mount.
- I’m considering to drill a wee small hole into the Otterbox to connect some earphones through it. I could also use bluetooth, but the N810 only talks mono then. That’s out of the discussionl :) .
The whole solution looks clumpsy compared to the elegant N810. But it will provide excellent protection against rain, dust and shocks.