Based on modulebaan's design (C-rail turnout switch with servo) I remixed the thing to give it a better fit (at least fort myself). The main part (the base) is now different for left and right turnouts. The design can be used for regular and curved turnouts.
See a video on YouTube how it is working:
First Layer: 0.35mm
All other Layers: 0.27mm
Additional required parts
To mount the servo:
2x screw M2x16
2x washer M2
To mount the whole thing to the turnout
2x screw 2,2x4,5mm
2x washer M3
- Print the parts (you just need one of the files called ServoL_Schraube_Beilagscheibe_all or ServoR_Schraube_Beilagscheibe_all. The other files contain the same parts, but just individually).
- Take a thumbtack and cut down to approx. 50% of its height.
- Take the M2 screws and washers and mount the servo as shown in picture 3.
- Take the cutted thumbtack and the printed arm and lay them into the base as shown in picture 4.
- Affix the cover part, so that the arm can no longer fall out. Take care that the arm still moves freely.
- Do not yet mount the servoarm itself! First connect the servo to your decoder and set its maximal movement, so that the servoarm won't hit parts of the printed thing. (For the decoders I use, it is the value 26 in the CVs 515,516,517 and 518. Furthermore I changed Speed-CV545 to 32.)
Once that is done, but not before (otherwise you could destroy your servo!!!)
- Affix the servo-arm to the servo on the one side and the thumbtack on the other.
- Take the other screws and washers (2,2x4,5 and M3) and mount the whole thing into the turnout. If required adjust the maximal movement of the servo a little bit.