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  1. #1

    Building a heated and ABS-fume-safe enclosure

    Hello guys! I am currently planing a heated and ABS-fume-safe enclosure for my new 3D Printer. But first I have some questions to ask.
    Let's start with the heater. I did some research and found out that there isn't an actually simple solution for heating your 3D printer. There are several options: Heat bulbs, heat guns, hairdryers, PTC-heating elements,... After looking at these options I figured the PTC heating elements would be suitable for my application. The chamber should reach up to 70C in order to achieve good quality ABS prints. However I have never seen PTC heating elemts in action. Does anyone have experience with this typ of heaters? Some input would be much appreciated. How do you heat your enclosures?
    Secondly I've read a lot about the toxic fumes which are released during printing. Therefore I what do use a HEPA and a activated coal filter. Whats your opinion about it? Is it overkill? Does it actually help?


    Looking forward to your opinions about my questions!
    Happy printing

  2. #2
    Technologist
    Join Date
    Jul 2017
    Posts
    158
    For starters, a cheap way to make a decent heater would be nichrome wire, or just buy some cheap heating unit that you can control from the control board or has its own temperature conroller.

    From what I understand, HEPA filters are physical particle filters, and don't help with toxins specifically. Activated charcoal is a chemical filter and can actually neutralize toxins. I think the best solution would just be a vent to the outside or good ventilation. I can't say whether either HEPA or charcoal filters are appropriate for what comes out of a 3D printer.

  3. #3
    Student
    Join Date
    Nov 2017
    Posts
    17
    Typically, if you can prevent drafts with an enclosure, and your heated bed gives off some heat, that will be plenty to get the insides up to a decent temp. Yes professional 3D printers do have extra heaters, but I don't recommend that, you will cause a fire hazard, and you will cut the life of components that need to be inside. 3D printers that use the bed as a heat source usually have fans that turn on when temps get too hot.

    For filters, I use a laser particle counter, and have no problem with a hepa filter removing particles. Some use a carbon filter to remove the smell as well. The problem with a hepa filter is they take a pretty strong fan to move air through them. But enclosure, fan and filters are pretty common with many printers today. I would use the same filters they do, since they have already been proven.

  4. #4
    This: https://www.mcmaster.com/#20055k25/=1bjmn4a
    Other wattages/voltages available. It has screw points for a cheap electronics case fan too. Blow air thru and you don't need to worry about the fan being plastic.
    I have one of these and it works really well. Admittedly, it is hooked up to a PID controller cuz my work makes them, but a thermostat should work ok.
    Last edited by Boscolio; 02-12-2018 at 10:15 PM.

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