Cooling Fan Shroud for Creality Ender-2

thingiverse

<u>EDIT 26 Apr 2018:</u> Note this shroud will NOT work with the older model Creality 4 fin heat sink unless the bottom cap screw is replaced a proper set screw. This shroud will work with the newer model Creality 9 fin heat sink that uses a proper set screw. <u>EDIT 20 Apr 2018:</u> Added PDF of X Carriage Plate What the world needs is yet another cooling fan shroud for the Creality Ender-2. Not really but it does need one that works. I say that because at least two of the more popular designs have an interference with the lower X-Axis axle bolt. I tried a number of others and did not find anything that I deemed suitable but then I have sort of a warped idea of what is acceptable. So I did a new design in BricsCAD. The goals were: 1) No points of interference 2) No printing supports required 3) Symmetrical (consistency and symmetry are next to godliness) 4) Use standard sized 40 x 10 mm cooling fan 5) Be able to see the print nozzle 6) Withstand at least 230 degrees print temperatures without damage 7) Usable when printed in standard PLA What I have come up with is made of two parts solvent welded together. The final version is the result of numerous trial and errors. The design that I am posting has run nozzle heat at 240 degrees with no detectable damage. I have used this fan shround on the Ender-2 to print PLA, FlexPLA and ABS. While it is usable when printed in PLA, I recommend using a higher temperature filament like ABS. I realize a number of people use some form of Cyanoacrylate such as superglue but these do not work as well as solvent based adhesives and they have a short shelf life. I used SCIGrip #16 but others such as WeldOn or Testors part No 3509C should work just as well. I also recommend lightly sanding the bottom surface of the assembled fan shroud with 400 grit wet sand paper. Be careful ... that is a very thin wall. I have also included a two part cover for the fan just to prove how anal retentive I can be. I printed this cover with Parmount’s FlexPLA with the idea that it might make my Mini-Kaze SY124010L fan a bit quieter. It is not any quieter but I like the aesthetics. With the fan cover all six of the required fasteners are M3 x 16mm. My major problem in starting this project was in getting some basic dimension of the hot end. Thus the first thing that I had to draw was the Creality Ender-2 Mk8 hot end. For those of you that might be interested I have also included that drawing. For those that might want to “mess with perfection” (did I actually say that ?) I have include the original DXF model files as well. All of the referenced files are the exclusive work product of the author and placed into the Public Domain by the author 22 February 2018 without any warranty expressed or implied.