Lion Mount Dual Extruder BL Touch Front Sensor Edition for Anet A8 & Prusa i3!

cults3d

This is my compact version of my other Anet A8 dual extruder heads. This uses two E3D extruders and has a BL Touch sensor mounted as close as I could possibly get it. This is the front mount sensor version! Everything FITS! #The Superlite! Is highly recommended!! #It's performance is much better than this version and it also has more adjustability for easier setup. See the Superlite version here: https://www.thingiverse.com/thing:3160905 Get the chain here: https://www.thingiverse.com/thing:3179124 This is a proven carriage and works just fine printed in PLA. The internal cooling ducts work fantastic with 30mm fans. I have 100+ hours on this and not a single issue! See the original here: https://www.thingiverse.com/thing:2766701 I made this one to put the sensor as close as possible to the heads. I think this is the tightest it could possibly be. It has built in cooling ducts for the extruders and mounts for the stock 30mm fans built in. I have included my new fan duct. Print one standard and one mirrored for this mount. The back is just the no sensor one from my other mount: https://www.thingiverse.com/thing:2734717 The fan spacers are included to help clearance the fans. Different ducts fit different ways but with the one listed above I found 2 spacers on ear screw worked great. For the lower screw on the side fans be sure to put it through the mount first then spacers and fan with the nut on the fan so it clears the 30mm cooling fans in the front. See pictures! There is a passage for wiring for the sensor. The plugs and wires fit just fine and the ear of the BL Touch will overhang the passage but it still fits fine. This reduces clutter a lot! The three clamping screws use Socket Head M4x30 or 35mm with nuts. The head cannot be hex like a bolt or it will not fit in the recess. I found socket head best for torque and easy of use. For the fan mounts I used M3x30m with nuts. To do: -Make versions without chain To use this please read below! See my Thing https://www.thingiverse.com/thing:2783450 For how to setup Marlin firmware! See https://www.thingiverse.com/thing:2784817 for how to install RAMPS on your printer. Below is the config for this carriage: This is for RAMPS boards, this is for the common ones like https://goo.gl/XW91zh [Amazon.com link] PLEASE pay attention and be sure to choose the correct code for your motherboards. See boards.h in the Skynet firmware for a list. define MOTHERBOARD BOARD_RAMPS_14_EEB Enable dual extruders: define EXTRUDERS 2 Offsets for the extruders: define HOTEND_OFFSET_X {0.0, -35.00} define HOTEND_OFFSET_Y {0.0, 0.00} For the probe it's : define X_PROBE_OFFSET_FROM_EXTRUDER 17 // X offset: -left +right [of the nozzle] define Y_PROBE_OFFSET_FROM_EXTRUDER -27 // Y offset: -front +behind [the nozzle] define Z_PROBE_OFFSET_FROM_EXTRUDER -0.5 // Z offset: -below +above [the nozzle Set this to your machine. I used a .5mm thick print put between the bed and probe with the nozzle touching the bed to start.] And the travel limits are: // Travel limits after homing (units are in mm) define X_MAX_POS 240 define X_MIN_POS -10 define Y_MAX_POS 230 define Y_MIN_POS -13 define Z_MAX_POS 230 define Z_MIN_POS 0 You also must set // Set the boundaries for probing (where the probe can reach). define LEFT_PROBE_BED_POSITION 20 define RIGHT_PROBE_BED_POSITION 200 define BACK_PROBE_BED_POSITION 190 define FRONT_PROBE_BED_POSITION 20 I have made a guide in PDF form available here https://goo.gl/1s8jSR for setting the offsets. You will need a serial connection to your printer and I found using Octoprint is really easy. Enjoy! Like! Leave a comment! Thank you! Update 10/16/2018 Added a little bit of play to the second extruder up and down to allow adjustment to meet the level of it's neighbor. This is done by loosening the clamp with the head resting on a level platform. Adjust both to level each other and tighten the clamp! Also reshaped the air passages for even more flow. Now I admit I have not tested or printed this yet myself. I ordered parts to put dual heads back on the printer and will get this done in the next few days. Let me know if anyone tries it!