Sturdy Biqu H2 mount for Ender 3

thingiverse

Fairly new to 3D-modelling I designed this to fulfill my reqirements for a mounting plate, listed below. I tried a couple of other designs but they were too flimsy in my opinion. Also getting the cables behind the extruder seemed impossible. This is super rigid and doesn't flex even a tiny bit bit for me anyway - which was my main goal. I'm printing @ 150mm/s and 4500mm/s² with this one. It should fit all ender 3:s and those using the same gauntry mounting plate. Step files is included for those interested. Let me know if it works out for you! #####Warning: >I wanted the extruder as centered on the mounting plate as possible. Therefore the nozzle sits a little bit higher than with the original extruder. >This will make the lower wheel on the mounting plate hit the cable strain releif bracket if you're using the original one that sticks up. I use this one insted and probably would regardless of extruder: <https://www.thingiverse.com/thing:2958812> #####Updates: + 2022-11-29 - V6 - I lowered the extruder and touch mount 3.5mm to create clearence between the roller wheel and glass build plate binder clips. Don't know if it also clears the cable strain releif bracket in the warning above as i threw my original away. #####The two versions: + 3015 cooling fan version *Which is for the original biqu fan, this is untested by me.* + 4010 cooling fan version *Which is for the original creality fan, this is the version i'm using. Has kind of a funnel as the fan is 10mm larger than biqu's. The fan still sits flush with the extruders outer edges to allow clearence for different fan ducts. This is pushing a lot of air.* + - #####Features of this design: + Utilizes 4 mounting points of the plate *The upper wheel bolts and two lower M3 bolts (one hotend and one oem fan shroud bolt)* + Utilizes 6 mounting points for the extruder *Two each on the top, the back and the heatsink.* + The upper wheel bolts are flipped with the nut invards *Allows clearance to the X-extrusion mount which allows probing basically all of the bed in the X-axis* + Wide and deep cable management slots *Allows easy installation* + Slotted bolt holes *Should make it easier to install as I noticed my H2 bolt holes was a little bit off compared to the CAD model due to manufacturing variations? It also makes it less sensitive for flow calibration etc.* + Small cut out for the motor *As I noticed my motor was bulging a tiny bit, making it hard to sit perfectly flat against the mounting plate.* + CR/BL-Touch mount *M3 bolts should thread directly in the holes - no nuts needed.* + ADXL345 mounting holes on top of fan mounting plate + - >All of this makes it a bit thicker, so you will loose a bit of printable space in the Y-axis depending on which tensioner you use etc (oem allows wheels to extend a bit more than printed ones that sit flush on the edge of the extrusion profile). I have mine at max 216mm currently with oem tensioner. >But you will loose more or less with any mount, this just adds a tiny bit to be able to achive the features above.It's quite an easy fix to move the Y rail forward a bit and secure it with t-nuts to regain the print space however. (Google this) #####Nozzle offsets: >*Compared to the original creality nozzle* >X: -0.75mm >Y: 14mm >Z: ~8-10mm *(the hotend in my ender cad has incorrect dimensions so I cant measure exactly)* #####Probe offsets: >X: -48.4mm >Y: 3.3mm >Z CR-touch: -1.95mm >Z BL-touch: -3.15mm #####Attributes: >Thanks to 3D_LC for the awesome CAD-model of the Biqu H2 <https://www.thingiverse.com/thing:4740224> >Thanks to Klaus Massler for the CR touch model: <https://grabcad.com/library/cr-touch-dummy-1> <br> ---