■ OVERVIEWUpgrade your jigs, fixtures, and machinery with this high-strength, multi-drive 4-lobe knob. This model combines a highly ergonomic hand grip with a unique dual-tightening mechanism. Designed to accommodate standard hex-head screws/bolts, it includes files for four sizes (M6, M8, 1/4, and 5/16), making it a versatile tool for any workshop or DIY project.

■ KEY DESIGN FEATURES. Ergonomic 4-Lobe Grip: Designed with four smooth, curved lobes that comfortably fit the contours of your hand, providing maximum leverage and torque without causing hand fatigue.. Unique Multi-Drive Functionality: Features specialized rear slots that allow you to easily tighten or loosen the knob using a standard Phillips screwdriver when extra torque is required.. Universal Hardware Compatibility: Includes separate files optimized for 4 different screw sizes: M6, M8, 1/4, and 5/16.. 100% Support-Free: The geometry is fully optimized for additive manufacturing.Compact & Powerful Dimensions: Measures 60mm in diameter and 23mm in height, offering the perfect balance between a low-profile footprint and a robust grip area.

■ FILES INCLUDED. .STEP files: High-fidelity parametric CAD file, ideal for integrating into your own assembly designs.. .STL files: High-poly export for smooth curves and flawless surfaces.. Project .3MF file: Pre-configured settings for immediate slicing with optimal parameters for high-strength.

■ PRINTING SPECIFICATIONS. Recommended Material: PLA (medium-duty applications), PETG, ABS or ASA.. Wall Loops: 5. Infill Density: 30%. Sparse Infill Pattern: Gyroid. Top Shell Layers: 6. Bottom Shell Layers: 6

■ PERFORMANCE METRICS. Material Consumption: ~18.3 g of filament.. Print Time: ~45 minutes (using a Creality Ender-3 V3 KE).

■ ABOUT BITKOBANBitkoban is an engineering-driven design studio focused on functional 3D printing. Every model is stress-tested and optimized for manufacturing.If you appreciate precision and functional design, please consider leaving a review or a photo of your print!