Servo mount for auto bed-leveling z-probe

This design is based on Servo mount for auto bed-leveling for Prusa i2 X-Carriage. I changed the following:

• Parametrized the SCAD source. Tweak it to make it fit your servo, X-carriage and hotend exactly.
• This servo mount can be printed longer or shorter, matching your hotend. The original is too short for E3D v5 hotend.
• Servo mounting holes are smaller, to match the smaller holes in most micro servos.

This mount will fit most X-carriages with 10x10x15mm accessory mounting block. In particular, I'm using Reinforced Prusa X Carriage with Slim LM8UU Holder.

The micro servo I'm using is TowerPro SG90, but SCAD file can be adjusted to fit other servos with slightly different dimensions.