Here's a BLTouch Sensor Mount for a Geeetech Rostock 301 mixing printer. The default GTM32 controller does not support auto leveling, but other controllers do. I retrofitted my 301 with Duet WiFi/Duex 5 electronics and a BLTouch and viola! A delta diamond hot end printer with auto-leveling! The mount installs at the rear of the effector. For reference, the probe tip is located at an offset of X=0.00, Y=-45.50, and Z=0.30 from the nozzle. Your Z will vary with your setup somewhat. I've included my config.g, bed.g, and the system macros for deploying, retracting, and reseting the BLTouch for reference if you're using Duet electronics.
You can find the Duet WiFi and its distributors at http://www.duet3d.com
Update 9-28-17: I created Duet macros for the BLTouch and to help in the printer calibration process and I've uploaded them.
Update 10-18-17: Version 2 of the mount has been uploaded! I revised the original design to include some important improvements. First, I improved airflow around the heatsink closest to the probe while still retaining good rigidity in the mount. Second, I added a small slit in the wire retainer to make it possible to install and remove the mount without having to disconnect and reconnect the wires to the BLTouch. Finally, I've found a new friend in Hatchbox Carbon Fiber PLA. It's a perfect filament for a mount like this.
Here's a link to an adapter plate I created to fit the Duet WiFi/Duex 5 electronics to the Rostock 301:
Here's a well done sensor showdown that includes the BLTouch and rates its performance:
Here's a link to a great crimper I found on Amazon to use for the BLTouch and Duet connectors:
This model prints straight up in PLA.