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Thread: Should I get a 3D printer...?

  1. #61
    Super MURCer Greebe's Avatar
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    I like Noctura fans also, but when a fan comes in a box that's nicer than the one my $1100 cell phone came in there is something wrong with the pricing. Replaced the exhaust fan on my controller with a Sunon I had left over from OCing. Exact same size, ball bearings, moves more air but is quieter. Not Noctura quiet, but then 2x the airflow. Personally I would rather make the fan larger, spin slower for the same given airflow and that would be quieter without the expense. I have a 12vdc system as it's one of the first printers Creality came out with. Since that time most are 24vdc now. We told them and they listened. A Creality replacement 350w switching PS 12vdc or 24vdc is $10! I have two, but not for use with my printer. Installed a Meanwell 350w SPS. Runs a tad quieter, much thinner, not sure exactly but would say it's 40% thinner than stock. This allows better air flow for sure. Will most likely add an additional case to the bottom of the existing controller and wire up the temp controller, install the RPI in there too.

    Believe you could add 12v control for fans if you wished, just use a mosfet driver and an additional 12vdc PS. Shouldn't be hard to wire up.
    "Be who you are and say what you feel, because those who mind don't matter, and those who matter don't mind." -- Dr. Seuss

    "Always do good. It will gratify some and astonish the rest." ~Mark Twain

  2. #62
    Moderator VJ's Avatar
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    The noise level is important to me. The current motion system is almost dead-silent (a bit more noisy when in standby), the extruder is more noisy when retracting, but not too bad. Most annoying (and constant) noise at the comes from the fans: the 30x30mm hot-end fan and the 40x40mm print cooling fan.

    I already know how to add 12V fans in the mix, and how to do it in away that keeps them controlled from the mainboard without creating a ground loop or other grounding issues. But still need to design some housings for mainboard, etc. and decide on a better mount for the print cooling fan: once I know how many (and which size of) fans I need, I will go for it. I agree that the Noctua fans are expensive, but it is a price I'm willing to pay for them.
    Today I'll work on the mount of power supply and mainboard: I would like to put them on a din-rail (which is why I got this type of Meanwell NDR: not only fanless but din-rail mounted) but need to print some parts for that. Printer should be good enough to handle those. Then I want to better guide the cables from the mainboard to the hotend (currently it is a bit blocking) and then worry again about print quality.
    pixar
    Dream as if you'll live forever. Live as if you'll die tomorrow. (James Dean)

  3. #63
    Super MURCer Greebe's Avatar
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    I feel you, if noise is an issue at least this is one of those "hobbies" where most any mod is possible.

    Remember when you first joined here? Look where you are today. Glad to see this is your life turn out so well
    "Be who you are and say what you feel, because those who mind don't matter, and those who matter don't mind." -- Dr. Seuss

    "Always do good. It will gratify some and astonish the rest." ~Mark Twain

  4. #64
    Super MURCer Greebe's Avatar
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    Was making a comparison of fans dBa noise levels etc. Noctura may be quiet, but thats because they move far less air todo so. A Sunon 40mm x 10 dual BB fan maybe at 31dBa, but it also moves >3x air. When bridged across the 5vdc and 12 vdc power supply nets 7 vdc and that really makes them quiet.

    Made a new EZABL fan mount out of PETG. 230c hotend / 65c bed, came out very nice. It's another part of the HUGE upgrade thats impending. New motherboard, display, filament sensors, extruders, OctoPi cam bed mount and this EZABL auto bed leveling from TH3Dstudio.com.
    20190913_175338[2].jpg
    "Be who you are and say what you feel, because those who mind don't matter, and those who matter don't mind." -- Dr. Seuss

    "Always do good. It will gratify some and astonish the rest." ~Mark Twain

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