High-Capacity "Ledge" Bit Insert (Prusa Tool Box - 60mm Version)

The "Ledge" System: Maximum Bit Density This is a remix of the excellent Prusa Tool Box Core One by Whity . While the original box is fantastic, I needed a way to store my long (45mm+) precision bits alongside my standard short bits without carrying two separate boxes. ⚠ Compatibility Note: This insert is designed specifically for the 60mm height bottom shells (Core One L / XL). It will not fit the standard low-profile (40mm) boxes because of the tall bit clearance. The Design Solution Most inserts force you to choose between tall or short bits. This design uses a "Passthrough" Ledge system : Rear Zone: Open vertically from bottom to lid, allowing 16 Tall Bits to stand up straight (utilizing the full 60mm box height). Front Zone: A split-level stack. The bottom bucket holds bulk/spare bits, while the top tray sits on a "Ledge" to present your most-used bits at a 45° angle. Capacity This single insert fits into one side compartment (79mm x 131.5mm) and holds: 16x Tall Bits (45mm height supported, 4mm hex) 48x Short Bits (Standard 4mm hex) 2x Driver Adapters (6mm hex) How to Pack It Bottom Tray (Rear): Place your Tall Bits here. Bottom Tray (Front): Fill the "bucket" with your 30 spares or less frequently used short bits. Insert Top Tray: Slide it onto the Ledge. Top Tray Slots: Place your 18 most-used short bits and 2 adapters here. Print Instructions Material: PLA or PETG. Nozzle/Layers: 0.4mm nozzle, 0.2mm layer height. Perimeters: 2-3 walls. Supports: Not required, but suggested for the base layer 'bridge' bar. Orientation: Bottom Tray: Print standing upright (as is). Top Tray: FLIP 180° in your slicer so the flat top face is on the build plate. The angled holes are designed to print support-free in this orientation. Customization & SCAD Customization The full OpenSCAD source file is included, making it easy to adjust hole tolerances or layouts. I highly recommend printing the test-Block.stl first to verify the fit for your specific printer before committing to the full tray.