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cor3ys

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Posts posted by cor3ys

  1. Maybe something inside not correct.

    That's what i would have thought but polymax worked and not making any adjustments failed on PLA and XT with heavy retraction.. Thats why i was wondering what type of prints Gixxer was basing his test's on. are they just basic straight forward prints or is he actually putting the IPM through stress test and using various prints with heavy retraction etc...

  2. melkolo: The reason it does not work with 8mm for you is that you have a very large spacing between the stainless isolator and the teflon piece, wich in turn will raise the spring pressure and lead to degradation of the teflon piece much faster.

    I would recommend you to adjust it down so you only have 0.5-1mm between the rim of the stainless isolator and the teflon piece (and then it would probably work with the 8mm shroud)

     

    Good spot Meduza, you are correct there should not be no more than a 1mm gap. that would explain why he had issues...

     

  3. Hi MelKolo

    No i have not had any issues when leveling the bed, in fact i always run the bed leveling every time i change nozzles just to make sure all is fine. The shroud does not hit any of my front clips at all...

    Are you running the latest firmware ?

    My UM2 is from 2013 so i don't know if they change the clips in any way from what i have on my machine since then..

    How much extra clearance are you looking for ?

     

  4. Interested! Waited for someone to do this, great work!

    Did you do a comparison in print quality before/after?

     

    Printing the UM robot was the only real test i carried just to see if the cooling was up to making both sides look good, because the right hand side normally suffers with the standard fan shroud. here is a link to Sprints web site you can see all the testing he carried out seems quite extensive.

     

    Isnt those fan holes too tight, i feel like you restrict the flow too much?

     

    Yes i also feel that could be improved, maybe that could be version 2. For now i have left that alone and is as the original design by Sprint, i only adjusted it to work with Anders heater block so now there is a much bigger air gap between block and shroud to stop heat deformation of the shroud and making access for a quick nozzle change..

     

  5. Hi Guys

    I have been playing with https://www.youmagine.com/designs/ultimaker-2-fan-mount--2#!design-information and modifying it to to work with Anders heater block. I like this design because it is enclosed and stops any temperature errors caused by open bottom designs.

    I have lowered the whole thing by 8mm, this means the bottom of anders heater block is 4mm - 4.5mm away from the fan shroud enclosure, this means i did not have to use any tape as per sprint original design.

    I have used ABS for the shroud for the last 2 weeks and had no deformation at all (see red shroud above) and currently running a XT-CF20 shroud with no issues at all. both been run with 250 degrees temperature. Have not tried PLA for the shroud.

    Red Fan shroud

    I have also opened up the nozzle hole to take the socket that is supplied with Anders nozzle for easy changing of nozzles.

    Fan shroud with socket

    Fan shroud bottom 1

     

    Fan shroud Bottom

     

    Fan Shroud

     

    Fan shroud Cut away

     

    Fan shroud On machine

     

    Edit: now posted to https://www.youmagine.com/designs/ultimaker-2-fan-shroud

     

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