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  1. #1
    Expert 3D Printer
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    New Fan duct - PRO version

    The story of this fan duct is very funny.

    I wanted to redesign the original fan, because I thought a fan with a disc form could be better (in order to ventil on all directions at the same time, our fan ventil only on one side).

    So I tried to draw a disc but without the small holes, With only one big peripheral hole.

    disc nozzle.jpg

    And I was looking for things to print on thingiverse and find this one :
    http://www.thingiverse.com/thing:793310

    So,i have downloaded it and modify it on sketchup, try different size...
    essai nozzle.jpg
    I have cut the original, add an extremity and design a connection with our fan to easily change it.
    Last edited by SAO; 04-30-2015 at 11:33 PM.

  2. #2
    Regular 3D Printer
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    Yes, this circular fan is good, can you upload it?

  3. #3
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    I have change my heater block and it has not the same size as the original, it size is 20 x 20 x 10 mm
    It is for this I used a large one, but with the original block heater you can use it smaller

    With the connection you can easily center the brass nozzle at the center of the fan, because it is not aligned
    I don't remember, but i think you must print the connection at scale about 1.01, otherwise you will have to strengh to put in it.

    I put this on the file :

    image nozzle + raccord.jpg

    I am working on multicolor printing with bowden, so I am working too on a new circular fan nozzle
    Attached Files Attached Files
    Last edited by SAO; 05-01-2015 at 01:33 PM.

  4. #4
    Administrator bolsoncerrado's Avatar
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    Yes; I have that ventilation circle in my toprint list as well. Seems its what the PROs use on their printers too Good job finding it

    The part I dont get is... we need to cut our current air nozzle and apply the adapter on one side and the new circular nozzle on the other? and glue them?

  5. #5
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    Hi Bolson,

    Yes, you need to cut out the conduct of your current air nozzle, insert the adapter and the new circular nozzle.

    I don't have glue the circular nozzle because the brass nozzle, the conduct and the center of the fan, is not aligned.
    So I can adjust it, but you can glue it and adjust it.
    I am working on multicolor too, so I will have to design a new one for the new system, so I don't finished completly this one, sorry


    I printed one but it was too tight, so i printed again between 1.01, 1.05, or 1.1, sorry i don't remember
    or you can file the interior if you have the tools

    The best would be to print a little part of the conduct to verify before cuting the used conduct

    I am doing the modifications, after I will post it, I can't print it for the moment
    Last edited by SAO; 05-01-2015 at 02:27 PM.

  6. #6
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    Hi,

    I have finish to mount the fan with our base.
    I have reduce by 25 % the side in order to not be too wide

    Anybody interested to try it ?

    I am waiting a flat sheet of aluminium so i can't print for the moment


    nozzle ventil final preview.jpg

    Tell me if there are few modifications
    Last edited by SAO; 05-02-2015 at 07:04 PM.

  7. #7
    Administrator bolsoncerrado's Avatar
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    Whenever I get a working printer I'll definetly try it hehe

    What multicolor solution are you working into? Handmade tri-extruder?

  8. #8
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    I am working on a 4 colors or materials on 1 extruder + 1 extruder for support

  9. #9
    Administrator bolsoncerrado's Avatar
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    Awesome, keep us posted.

  10. #10
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    Your ventilation nozzle has some issues.

    Attachment 971

    Attachment 972

 

 

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