Improved Precision Piezo

I made this "improved" version for the Titan extruder but it can be used for all groove-mount setups. With the bowden top, you can use it for bowden setups, but keep in mind that the PTFE tube adds rigidity inside the extruder and the piezo setup relies on a 0.2-0.3mm flexibility that this extra tube might not be able to allow.

Advantages to the original 3D printed housing:
-Smaller size, so it is flush under the extruder in case you want to put something behind or in front of it (fan duct)
-27mm piezo element: easier to drill and bends better without cracking
-Better cable management: you don't have to twist your cables so that they come out at a specific place while not snapping off the solder and in general not crushing the solder against something
-Only 2 major pieces: easier to assemble standing on a half leg and bending over the 3d printer
-Better bend pattern on the piezo element (U shape pushed on 2 points as opposed to crushed in the middle ... the metal is not elastic