CR-10s - Extruder with Hobb Goblin, plus Sensor

thingiverse

Update 2: As requested, I created a version with the cable holder on the opposite side (v.cable holder). To accommodate this change, I shortened the lever to ensure proper cable fitting. Both flex and standard versions are included; the sensor cap remains unchanged. Update 1: A new version was added to enable printing flexible materials (vflex). Simply attach a piece of bowden tubing and use a knife to secure it in place. The sensor cap stays the same as before. This is an extruder designed for the CR-10s, featuring a Hobb-Goblin - 5mm ID Drive Gear from e3D. Please note that custom firmware is required, with a recommended feed rate of 143.92 Esteps/mm to start. If you don't have custom firmware, adjust the feed rate in your starting code. This extruder should work with other drive gears having similar proportions, although I haven't tested any alternative options. All parts from the original extruder were reused except for the drive gear; one M6 washer is needed for the pneumatic coupler. To complete this project, you'll need drill bits to create smaller holes. Use a 2mm drill bit to create the sensor-to-drive-gear hole, allowing for smooth filament flow while maintaining structural integrity near the z-axis rod. With loaded filament, there's a 1-2mm gap between the z-axis rod and the part – this is just right. When attaching the drive gear support (ball bearing), be cautious not to overtighten it; if done carefully, it can even hold PLA securely.