About this 3D model

Overview: I wanted to speed up the process of preparing PET bottles for making filament. One of the steps is to cut the bottom of the bottle. Using scissors is not very convenient and fast so I have designed this cutter which uses a snap-off blade. The blade is rotated by hand using a simple crank mechanism. The PET_Bottom_Cutter_Insert.stl is added for smaller bottles (1.5l) with diameter ~88mm. For these bottles it is beter to use the short version of the blade holder - PET_Bottom_Cutter_Blade_Holder_18mm_Short.stl. Here you can see how I'm using the cutter: Bill of Material: Base Plywood ~300x120x18 mm 4x Corner_Protector.stl (Optional) 4x Screw 2.5x12mm (Optional) Cutter 1x PET_Bottom_Cutter_Crank_Base.stl 1x PET_Bottom_Cutter_Crank_Spacer.stl 1x PET_Bottom_Cutter_Crank_Handle_Distance.stl 1x PET_Bottom_Cutter_Crank_Handle_Arm.stl 1x PET_Bottom_Cutter_Crank_Handle.stl 1x PET_Bottom_Cutter_Blade_Holder_18mm_Long.stl or PET_Bottom_Cutter_Blade_Holder_18mm_Short.stl 1x PET_Bottom_Cutter_Socket_Wrench.stl (Optional) 2x Bearing 608ZZ (8x22x7mm) 4x Screw 4x25mm 1x Screw M8x100mm 1x Screw M8x50mm 2x Nylon Lock Nut M8 2x Nut M8 2x Washer M8 1x Nut M3 1x Screw M3x10mm 1x 18mm snap-off blade PET bottle support 2x PET_Bottom_Cutter_Support.stl 1x PET_Bottom_Cutter_Insert.stl 4x Screw 4x25mm