Nexus S Bike Stem Mount
by jmcskixc, published
V2 update: The phone didn't fit as well as I wanted, so I've tuned up the demensions a bit for V2. The width is narrower by .100" and I reworked some of the fillets. Also enlarged the radius for the stem area to 1.5".
I created this part to easily mount my phone on the stem of my road bike. I use it on the stationary trainer to easily listen to music while pedaling. This way I can crank tunes to keep my energy up without disturbing anybody.
The cut-out to fit over the bike stem is a 1.5" radius. This would probably work on most stems and top tubes that are around an inch to two inches, with the use of a little padding to help a poor fit.
If the fit is loose or slides easily on the frame mount or around the phone, you could try cutting a piece of old inner tube to stick in between for a better fit without having to modify the design at all or having to reprint it.
My phone has the Seidio two-layer case (the one with the silicone glove plus the hard plastic outer shell), so the other standard Nexus S designs would never have enough room for it. This one should.
If you wanted to use it on the road or trail, it might (meaning definitely) need some better clamping mechanism on the phone. This design is for stationary applications.
The pegs are to keep the zip ties separate to the mount won't flop around too much as you pedal, or move the bike on and off the trainer, etc.
You could probably use it with some rubber bands to temporarily mount your phone to almost anything, like other gym equipment or something in your car or truck.
Just zip-tie the thing to some part of your bike, and stick your phone in it. Happy pedaling!
Print the thing.
Scrape off the raft and supports (recommended, haven't tried it without them, YMMV).
Check the phone fit, use inner tube pieces to snug it up if needed.
Strap it to some part of your bike with zip-ties or big rubber bands. Could go vertically on the stem or horizontally on the bars.
Use some inner tube again to snug-up the fit on the stem, top tube or bars (if needed).
The pegs are there to make sure the zip ties or rubber bands stay put.