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Da Vinci 2.0 Rear mount cooling fan shroud

by mordiev, published

Da Vinci 2.0 Rear mount cooling fan shroud by mordiev Sep 30, 2014
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Summary

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

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i think i'm gonna make one for da vinci 1.0
but my 40mm fan isn't powerfull enough
i've got a bigger one that could blow enough air to make the trick
anybody tried to make a blower "around" the hot end? cause there is not so much space
maybe we need a new carriage for this!!!

Ive notice that you are using a davinci 2.0. Have you been able to use custom firmware on this model?

Oct 8, 2014 - Modified Oct 8, 2014
mordiev - in reply to mdaher

Yes. I was one of the developers that helped make the Repetier Firmware work on the Da Vinci 2. As of right now the firmware works but it is not 100%. LUC and a few other developers are doing even more work to keep adding functions features and bug fixes. If you are interested to learn more I suggest you search these forums for more details. In order to get the firmware loaded you have to install and setup a lot of things. But I think it is worth the effort.

http://voltivo.com/forum/davinci-firmware - this is the main forum hub. lots of good info in many of the threads
http://voltivo.com/forum/davinci-firmware/215-help-with-my-davinci-2-0 - this thread is asking the same question you are asking me.
http://voltivo.com/forum/davinci-firmware/239-cooling-fans-for-extruded-plastic-and-the-tool-head - this thread talks about using the fan shroud I posted here. In the instructions in this thread I also provide many helpful links regarding the firmware.

You sir are the man! Thank you.

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