This is a 3D printed ABS (acrylonitrile butadiene styrene - a tough, slightly flexible plastic) bracket that solidly holds both the MRServo-2/3 control board and the servo in place. Attaching to the layout with three screws in slots, it allows for a solid mounting to wooden layout roadbed and yet still provides some fine adjustment for getting the throw arm position exactly right. While we still recommend the mounting method included with MRServo (using industrial mounting tape), this provides a heavy duty alternative.
Note: MRServo-2 board and servo are shown in some pictures to illustrate how they're installed. They are not included with this item and must be ordered separately.
As with all ISE products, our mounting brackets are open hardware. For those interested in printing their own, the design files and ready-to-print STLs are available on Thingiverse.