Materials and methods Materials needed: =============== 2 x M3 threaded brass insert 2 x M3 x 16 mm hex screw 2 x M3 nylon washer A few hundred grams of filament. Instructions: ========== 1. 3D print all parts. 2. Insert brass insert into the bottom part. 3. Screw top part to bottom part with the two hex screws. Use a washer under each screw. 4. Insert the clip in the top part. 5. Fill the box with the Tap Tool parts and have fun!