Precise sandpaper holder The prototype is tested on Qidi Tech X-Plus printer with 0.4 mm nozzle. Material: ABS (niceABS Light Grey); Print Settings: Extruder: Flow: 100%; Retraction Distance: 1.5 mm; Retraction Speed: 30 mm/s; Layer: Layer Height: 0.16 mm; Line Width (Inner Wall, Outer Wall, Top, Bottom): 0.35 mm; Line Width (Infill): 0.42 mm; Initial Layer Line Width: 130%; Wall Line Count: 3; Top Layers: 5; Bottom Layers: 4; Top/Bottom Patterns: Lines; Fill Gaps Between Walls: Everywhere; Infill: Infill Density: 90%; Infill Pattern: Triangles; Infill Overlap Percentage: 45%; Infill Before Walls: Yes; Additions: Z Seam Alignment: Sharpest Corner; Skin Overlap Percentage: 45%; Combing Mode: Within Infill; Build Plate Adhesion Type: Brim; Brim Width: 8 mm; Speed: Infill Speed: 40 mm/s; Wall Speed (Inner, Outer, Top, Bottom): 25 mm/s; Initial Layer Speed: 25 mm/s; Travel Speed: 80 mm/s; Minimum Layer Time: 7 s; Temperature: Printing Temperature: 220 deg; Build Plate Temperature: 100 deg; Cooling: Initial Fan Speed: 20% Regular Fan Speed: 100% Regular Fan Speed at Height: 0.62 mm; Support: disabled.