TheDoctor wrote: ↑
Wed Jun 13, 2018 8:36 pm
Wanted to share my (very similar) homework as well... Followed the same basic approach to make small climbing shifters for a Dura Ace Di2 Disc 9170 setup, with the shifters only having ports for "smart" switches with the full circuitry, not for the "dumb" sprint shifters.
I purchased a (second hand) SW-R600 climbing shifter and took it apart; I was amazed to see how big the shifter is relative to the circuitry inside. In addition I got some small microswitches; these are available with different button lengths, I went with the shortest (~3mm) as these just protrude out of the bar tape - very low profile.
Soldering the wires onto the circuitry was precision work (left this to my dad the soldering expert
). The microswitches were soldered onto the other end. Filled up the little housing with sugru for waterproofing and for extra protection also covered it in heat shrink tubing. I also sealed the outside of the microswitches and soldered connection with sugru, giving the switches a smooth outside profile.
All soldered up...
End result: very clean wiring, hardly visible climbing shifters, and a hidden WiFi unit as a bonus
Alright Doc! When you wired it up, did you run it directly into the shifter or into the bar end junction? Below is my wiring plan but I'm not sure if it'll work. I know as long as it's all wired up one way or another, it'll work, however with the old sprinter shifters, those needed to be connected directly into the levers. I'm hoping that is not the case with this remote climbing shifter.
I want to splice in some micro switches for custom sprinter shifters; exactly a you did.
My problem: How to wire them while using the bar end RS910
As of now, my set up is:
Climber remote wire - TO - d-fly unit - TO - RS910 bar end junction
350mm- Bar end to RS
550mm-RS to LS
1200mm-LS to B junction at bottom bracket
250mm-BT110 battery to B junction
300mm-FD to B junction
650mm-RD to B junction
For the switches:
Keep remote body internal, run buttons to desired location on drops, connect r600 etube wire to d-fly bluetooth port, then etube wire to 2nd port in bar end RS910.
All ports are full and successfully routed. Besides the above potential wiring, I don't see any other way to do it without adding another junction. Will that end up working?