GrabCAD 模型信息
Extrusion Screw Grinding Jig (3D-Printed) – 20 mm Dia, 20 mm Pitch · 模型 167488
This is a complete grinding fixture for making your own plastic filament extrusion screw at home, without a lathe or CNC. It uses a standard 4" angle grinder, 3D-printed parts and off-the-shelf hardware. The fixture holds and guides the workpiece during grinding, so you can get the screw geometry with basic workshop tools. It is designed for a 20 mm diameter screw with a 20 mm pitch. Key features Custom 3D-printed parts (PETG) for holding and guiding the workpiece Adjustable grinder attachment that fits almost any 4" angle grinder Timing pulley drive (20T to 50T) that sets the 20 mm pitch M8 to M20 workpiece connector Linear shaft and bearing guide system built from standard McMaster-Carr parts Easy to modify for other screw diameters and pitches Specs Build size: 600 x 400 x 200 mm Material: PETG plus off-the-shelf hardware Manufacturing: 3D printing only Build time: about 1 week Difficulty: Intermediate Adapting it to other sizes To make a different diameter or pitch, update these parts: M8 to M20 connector: change it to match your workpiece diameter. Grinder attachment: adjust it if your grinder doesn’t fit. Timing pulleys: change the tooth count to change the pitch. Included in this upload: STEP files of all the custom parts. More details: For the drawings, assembly instructions, full parts list with McMaster-Carr numbers, and STL print files, visit the project page: bazaljunaid(dot)com/extrusion-screw-project/ License: Free for personal and university use. Please credit Bazal Junaid and link back to bazaljunaid(dot)com. For commercial use, contact me first. Safety note: This is a DIY workshop solution, not an industrial machining fixture. Use proper guarding, secure clamping and eye protection when grinding metal. Inspect the 3D-printed parts for wear or damage, and keep them away from direct contact with the grinding wheel and excessive heat. Need a custom version? I do CAD and mechanical design work, so feel free to get in touch through my website.
- 格式
- STEP / IGES、Rendering
- 分类
- 3D printing、Industrial design、Machine design
- 标签
- cswp、cad design、jig、petg、diy、mechanical design、solidworks、3dprinting、grinding fixture、filament extruder、extrusion screw
- 数据更新
- 2026-10-22T06:24:03Z
