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Posted · Dirty print result

Hi people,

I try to print with Innofil ABS (Natural) and my print results look like really dirty.

IMG_1303.thumb.jpg.8f4a10d5551b28bb8611384d68c0c7e5.jpg

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I clean the nozzle before each print but it seams not to help much. In several minutes (ok, maybe after 30 minutes or so) the nozzle looks like this again

IMG_1307.thumb.jpg.12744f3b97adb839186032263ee52f1a.jpg

Do I something wrong?

Print temperature: 240-250C.

Bed temperature: 95C

Thank you in advance!

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IMG_1304.thumb.jpg.4e78445416301346ad640de8f30b0cfd.jpg

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IMG_1307.thumb.jpg.12744f3b97adb839186032263ee52f1a.jpg

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    Posted · Dirty print result

    Since about 10 days I wipe the nozzle with non-stick silicon oil prior to printing, and then again after each print. I use the sort of silicon oil that is also used for easier release of castings from a mould. Since then I have no more build-up of molten material under the nozzle. Maybe you could try that?

    First clean the nozzle's outside thoroughly: warm it up a bit (to 120°C or 150°C or so) and wipe it clean with a tissue. Then spray silicone oil on a small paper tissue (but do this far away from the printer, so that you get no oil on the build platform, which would destroy sticking). And wipe the nozzle with that tissue. After a print, immediately clean the nozzle and wipe it again with oil.

    Apart from the brown spots I think your models come out quite nice, regarding those small details. Reducing temperature might also reduce the amount of brown goo, but that could also reduce layer bonding, so that might not be a good idea.

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    Posted (edited) · Dirty print result

    Thank you for the advice!

    What interesting is ... when I printed with PLA I have had no such problems. Also I will change my hot end soon  /( to E3D V6 ) and additional I bought a Silicone Sock for it

    5a33221a97d2c_2016-10-0618_58_51.thumb.png.547c667d86e5bd2d9257f04fc8c45f48.png

    may be it will also help?

    5a33221a97d2c_2016-10-0618_58_51.thumb.png.547c667d86e5bd2d9257f04fc8c45f48.png

    Edited by Guest
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