E3D V6 Blower with servo controlled flap

thingiverse

This attachment mounts directly onto the E3D V6 hotend using the clip provided by E3D. Watch an animation of this at: http://0ze.ro/fan_flap_animation.gif To make this, you will need: 1 - SG90 hobby servo (and screws and servo arm) 1 - M5x12 Bolt (or longer, I used M5x16) 1 - M5 Lock nut 1 - MF85ZZ bearing 4 - M3x35 Bolts 4 - M3 nuts 1 - E3D v6 hotend fan clip http://www.thingiverse.com/thing:340312 2 - 5mm long self-threading screws to mount the E3D clip. 1 - 40mm x 10mm fan For a manually controlled version of this, check out: http://www.thingiverse.com/thing:1596799. Printer Settings: - Printer Brand: RepRap - Printer: Prusa i3 - Rafts: No - Supports: No - Resolution: 0.1mm-0.2mm layer height - Infill: 80% Notes: Make sure that you have retraction on and maybe make your print speed a little slower to allow it to properly print the bottom pegs for the E3D clip. Post-printing steps: Step 1 - Clean all parts (remove excess plastic from edges). Step 2 - Insert servo arm into flap piece and trim excess. See pictures below. This is what it should look like after cutting. Step 3 - Insert flap into duct body and mount servo. Make sure your servo is set to the 0 position or -90 position, and make sure the flap is completely down (closed). Use the hole on the other side of the flap to provide access to the servo arm screw. Important note: do not use washers on the M5 bolt as they will interfere with the MF85ZZ bearing. Step 4 - Insert the MF85ZZ bearing. Insert the M5 bolt through the bearing and flap, and secure with the M5 lock nut inside the duct body. Step 5 - Attach E3D clip to blower body using the 2 5mm long self-tapping screws. Make sure not to over-tighten these screws as they may damage your E3D clip. Important note: do not use washers on the M5 bolt as they will interfere with the MF85ZZ bearing. Step 6 - Sandwich fan, duct, and blower together ensuring the flap covers the bottom airway and secure with the M3x35 bolts and M3 nuts. Step 7 - Clip the newly assembled object to your E3D v6 hotend. Run wires for the fan and servo to your printer controller board. Important note: Where to connect these and how to configure it in your firmware is beyond the scope of these instructions. Disclaimer: Please note that failure to assemble/connect/configure electronic components correctly can damage them. I will not tell you how to properly connect them or configure them. You will need to research and figure this out on your own. This thing was inspired by (but not created from/using): http://www.thingiverse.com/thing:839620