K8200 Z-axis Backlash eliminator

added version with 10mm extra height for use with taller springs

BOM:
1X Backlash eliminator
2X M8x1.25 Nut
1X Spring Min. ID 8mm Max. OD 13mm
2X M5x0.8 Bolt (Original Znut holder bolts)

assemble like picture
optimized for slic3r hole error