1 Topic by pirvan

  • pirvan
  • pirvan
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  • From: San Francisco
  • Registered: 2013-03-27
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Topic: Distorted filament extrusion ??

I noticed that my last couple of prints didn't have smooth surfaces either vertically or horizontally, so I extruded a few centimeters of filament and here is the result.

http://www.soliforum.com/misc.php?action=pun_attachment&item=4834

I did this repeatedly (probably 1 meter or more), and I'll get a nice and smooth extrusion one minutes, then it will change mid stream and give me this distorted extrusion the next, then back to normal.

It looks like it spurted it out, although it doesn't really, and it's a lot more brittle than the normal looking one.

Any ideas why it comes out like this?

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To print or, 3D print, that is the question...
SD3 printer w/too many mods,  Printrbot Simple Maker Ed.,  FormLabs Form 1+
AnyCubic Photon, Shining 3D EinScan-S & Atlas 3D scanners...
...and too much time on my hands.

2 Reply by IanJohnson

  • IanJohnson
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  • Registered: 2012-08-07
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Re: Distorted filament extrusion ??

Looks like bubbles from too much moisture.

3 Reply by draemus

  • draemus
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  • Registered: 2013-01-09
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Re: Distorted filament extrusion ??

Had the same in weirdly what looks the same colour, dried a sample out and worked fine, so follwoed the advice i could find on drying your filament put it in oven....

The abs dried fine the spool not so much and had to bin it (after a few hours of watching it cool and make some weird noises and shapes as the spool shrunk compressing the abs still on it).

Guess what i'm saying is if you do decided to dry it don't be a muppet like me tongue