This is the side by side version of my dual extruder set up. the other two, https://www.thingiverse.com/thing:2645090 and https://www.thingiverse.com/thing:2583267 is in tandem. This one is more suitable for machines with dual Z steppers for reasons stated in one of the other versions. It has a BLTouch bracket and all parts are adjustable in height to compensate for different nozzle styles and so forth.

171217: Uploaded a slightly modified version. it is a little more rigid just for sake and the cooling duct is changed. It is supposed to be mounted with just one screw that also keeps it from rotating.

180215: Some changes that makes it a little easier to lock down the left extrudes height. This one works well but must be printed in stiff material. PLA is a good choose but anything that doesn't flex.