Tank Extruder Mount (RigidBot, E3Dv6, Printrbot Gear Head)

thingiverse

Single Extruder Mount for a RigidBot This mount uses the following parts: RigidBot E3D v6 Printrbot Gear Head Beta Gear Head Extruder Mount 2 - 50mm x 15mm radial fans* 4 - LM8UU Bearings 7W LED COB Module* (optional) 4 - 70mm M4 Socket Cap Screws 4 - M4 Nuts (preferably nyloc) 4 - 16mm M3 Socket Cap Screws (for the motor mount) 1 - 8mm M3 Socket Cap Screw (for the motor mount) 2 - 25mm M3 Socket Cap Screws (for the extruder mount) 2 - 4mm M3 Socket Cap Screws (for the extruder PCB) some 1.75mm NinjaFlex assorted wiring and connectors *affiliate links Support: Don't add support material inside main air ducts, it may be difficult to remove. I printed with support material around screw holes and near radial fan mounts but can be printed without (those areas are hidden anyway). Materials: The flex top part is designed to print with a flexible filament but can be printed in other materials {I'm currently using 3mm sobothane, it doesn't make a significant difference though}. The fan band should be printed in NinjaFlex or similar filament. I used PET+ for main parts and have also used PETG and PLA for earlier versions. Warping from heated bed or extruder may cause issues so ABS is a better option if you can print it without warping. Assembly: There are 1.75mm channels for NinjaFlex or other similarly flexible filament, 3 around each bearing and 4 around the heatsink mount (16 total). The 30mm fan band goes around E3D fan which slides into slot between two main pieces (see picture). I tend to mount fan backwards so air and fumes blow away from me but may work better with fan blowing at heatsink. Wiring: If you want to use both fans or LED light, make splitter cables or rewire fans. Make sure heater cartridge cables don't touch air ducts or they may melt. Mounting: Leave M4 screws slightly loose until mounted on 8mm rails then tighten gradually, checking entire assembly slides freely. It requires some fiddling to ensure sides are parallel enough to avoid binding.