Da Vinci 2.0 Rear mount cooling fan shroud

thingiverse

UPDATE. I actually don't like this thing anymore. It kept getting caught on the screws on the back of the bed. So I have made a better design that attaches to the front. http://www.thingiverse.com/thing:553792 This fan shroud will attach to the back of the Da Vinci 2.0 tool head. This is for the Dual Fan model. It redirects air from the second fan to cool the extruded plastic. Please note that repurposing one of the two fans does reduce the cooling to the extruders. I am working on another fan shroud to address that problem. I recommend you use custom firmware to control the fan that you attach this to. See the instructions for more information. I lowered the aim of the left nozzle.10/6/2014 It was too high. Instructions I modeled this part myself using Blender. Print the model standing straight up without any support. I have tried using ABS and t-glase (PETT). The t-glase printed fine but it warped after a few minutes of use. I suspect PLA will warp the same way. ABS seems to work just fine. In order to mount the fan shroud you need to bend the metal fan mount to be at a right angle. I did this to make it easier to design. It also makes this part compatible with the new Internal fan shroud that I am working on. I will post that new thing soon when I can test it some more. You will also want to turn the fan around so that it will push air into this shroud rather than pull air through it. In order to control the fan via software you will want to follow instructions found in this web forum. http://voltivo.com/forum/davinci-firmware/239-cooling-fans-for-extruded-plastic-and-the-tool-head