About this 3D model

7.5mm hole for the pen I can add more pen diameters write it in the comments Hardware: M6 x 20mm/25mm - 6pcs M6 self-locking nut - 6pcs Settings: 0.20mm Standard +custom settings: Wall loops min. 3 Outer wall: 25 mm/s ( BambuLab 60 mm/s) Infill 30 % PLA / PETG