Recreus Extruder Lever Type for OpenBuilds Mini-V Wheel Extrusion Carriage

thingiverse

Human: This setup utilizes a lever type direct drive for the Recreus extruder, designed to provide quick and easy replacement of filament without requiring any tools. Capable of handling both stiff filaments such as ABS or PLA, as well as flexible filaments like Recreus' FilaFlex, this unit can be used with minimal adjustments needed. Softer filament types require less spring pressure, which is taken into account by designing a deep hole in the body part for the spring to securely sit in. By adding a plug that fills part of the hole, users can increase tension as desired, allowing for different tensions to be achieved using just one spring regardless of the filament type being used. The lever utilizes a 608ZZ bearing held firmly in place by an M5 bolt. To assemble correctly, the hole within the lever must first be thread tapped for an M5 threading, after which the bearing can be secured. The top surface of the lever also features a 4mm diameter hole intended for fitting a 4mm outer diameter by 3mm inner diameter PTFE tube, this serving to reduce wear on the lever and minimize drag on the filament. The design of the mount allows it to accommodate an Open Builds Mini-V Wheel Plate with ease, with Sketchup files provided so users can modify the mounting design for their specific needs. This setup draws inspiration from the Recreus direct drive thing:263133. **Printing Instructions** For optimal results, print using ABS filament at 40% infill. A crucial step in assembling the body is to thread an M6 hole through its bottom portion, this allowing for the secure threading of a Recreus barrel into the unit. Users will require a bottom type tap as the hole is blind. Furthermore, ensure that the lever's internal hole has been properly tapped with an M5 thread for securing the 608ZZ bearing using a 12mm long bolt. It's worth noting that this mount is designed to integrate seamlessly with Mini-V Wheel carriages operating on a 20mm V-Slot extrusion from Open Builds. To accommodate various mounting designs, modifications can be made as desired. When assembling all the components together, reference the assembled.skp file for detailed fitting guidance.