Helix e3D Compatible Hotend Mount for Maker Ultimate/Wanhao Duplicator6

thingiverse

**Update 10/24/2019** I'm releasing the f3d file for this design as-is since I've been too busy to clean it up and won't have time in the foreseeable future. **Update 3/29/2019** I added a spacer for the Y axis endstop, allowing it to contact the endstop. The spacer is designed to use a square m3 nut and ~10mm m3 screw to hold it in place. I like my Maker Ultimate but never liked the hotend that came with it. It was difficult to get good part cooling for it. I wanted to switch to an E3D hotend, but there weren't many options available, especially ones using the original extruder, so I designed my own. This is v1. It's not perfect, but it gets the job done. I plan to rework it in the future and possibly make a version to work with a bowden extruder. * This design has a few more mm clearance than the stock hotend. * It uses the original LM6UU bearings (warning: they can be a little tight. I tapped mine in with a hammer and appropriately sized cylinder used as a punch. Be careful doing this). * Built-in part cooling fan mount + ducts. Takes a common 50x15 blower. Make sure you get the 24V version. * Front hotend cooling fan is a 30x10mm axial fan, also 24V. * Works with stock PT100 temperature probe as long as you get the e3D heater block that accepts a cartridge-style temperature sensor. I created this using e3D drawings for the v6, but I actually use a clone and it fits just fine. Non-stock parts needed: * 1x 24V 50x15mm radial fan * 1x 24V 30x10mm axial fan * 1x 24V heater cartridge (40W works well) * 1x Genuine or clone e3D hotend with cartridge-style temperature sensor block * 2x m3 square nuts * 2x m3x18 screws * 1x m3x22 screw * <100mm of 4mm O.D. PTFE tubing for 1.7mm filament Stock parts re-used: * PT100 temperature probe * LM6UU bearings * Extruder mount and everything that goes with it *** NOTE *** The top front of this carriage protrudes a bit further forward than the stock one by about 1cm, so the Y-axis endstop doesn't quite reach without some minor modification. The Y-Axis endstop spacer helps with this.