x-Head Alignment parts for PRN3D

http://bunkai.sakura.ne.jp/bunkai-wp/3d_printer/600/
PRN3D???????
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Is PRN3D exclusive parts.
It is a part of correcting the deflection of the heat head base.
Is multiplied by the tension of the stronger parts of the linear bush outside, leading to a proper shape.
Also, by embedding the M3 nut to nut hole of the front part, it can also be used in future enhancements.