Linear Actuator Worm Gear
thingiverse
Repurpose surplus linear actuators by converting their ball screw output into worm gear setup for driving Recyclebot-type filament recyclers/extruders. The actuators, common in your area (e.g., Motionsystems.com), use a 20:1 internal gearing; with an 1800 RPM motor and 90-tooth gear, the gear turns at 1 RPM. Adapt this to your specifications using datasheets or trial and error. Note that epicyclic or free-wheeling ball screws may have different actual leads than advertised, while multi-start screws require measuring lead between same thread. For customization, you need actuator shaft diameter, thread root diameter, lead distance, ball diameter, and desired teeth count. Be prepared for long OpenSCAD render times (6-50 minutes). Ensure to review your .gcode for any geometry repairs before usage. The .scad file has undergone several edits for improved functionality, including adding flange option, hole types, hole shrink percentage, and support for multi-start ball screws.
With this file you will be able to print Linear Actuator Worm Gear with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Linear Actuator Worm Gear.