1 Topic by redbarret (edited by redbarret 2014-12-19 15:37:40)

  • redbarret
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Topic: light bumps on the extruded plastic?

It's been a while I've had this problem.
Filament looks fine when going in, but when it comes out from the extruder, there are these light bumps on it.
It's Solidoodle's filament.

http://i.imgur.com/za7sQDl.jpg
http://i.imgur.com/ZaUV4cO.jpg

They are 0.42 mm in diameter, so sorry the photos are so blurry.

Solidoodle 4

2 Reply by n2ri

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Re: light bumps on the extruded plastic?

I have seen this on PLA. figured its either wrong temp extrusion or just nature of the material. either way I didnt like it under magnification for my irems printed or printer operation issues it can cause

Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs

3 Reply by elmoret

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Re: light bumps on the extruded plastic?

Generally this is moisture in the filament boiling and creating a steam bubble.

Filastruder - the robust, inexpensive filament extruder
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4 Reply by redbarret

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Re: light bumps on the extruded plastic?

Makes perfect sense.

How "easy" it is to remove moisture from filament? It seems to absorb moisture much easier or faster than releasing it.

Solidoodle 4

5 Reply by AZERATE

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Re: light bumps on the extruded plastic?

This has been discussed many times on this, and other forums. Here's one
http://www.soliforum.com/topic/7074/abs … -bubbling/

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