ABS Filament Problem

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RSeeG
Posts: 14
Joined: Fri Jan 09, 2015 12:22 am

ABS Filament Problem

Post by RSeeG » Mon Jan 19, 2015 3:35 am

This is my Noob question: my Up Mini has been working well with aftermarket clear ABS but the aftermarket black ABS (same make) has lots of bubbles in it as it comes out of the extruder. Both spools were vacuum sealed and have only been open for a few days. Just wondering if the cause is 1) extruder too hot (haven't done a mod to reduce temp yet), 2) poor quality ABS or 3) I read it could be moisture (in which case is there any way to remedy this). Help/suggestions would be appreciated.
Thanks in advance.
Grant
Last edited by RSeeG on Tue Jan 20, 2015 11:49 pm, edited 1 time in total.

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7Schlaefer
Posts: 52
Joined: Tue Jan 06, 2015 9:39 pm
Location: Wiesbaden, Germany

Re: ABS Filament Problem

Post by 7Schlaefer » Mon Jan 19, 2015 5:13 pm

Whats the exact specification of you ABS ?

mb20music
Posts: 375
Joined: Thu Feb 14, 2013 1:35 am
Location: USA

Re: ABS Filament Problem

Post by mb20music » Mon Jan 19, 2015 6:01 pm

Most likely moisture in the filament. You might be able to remove the moisture from the filament by placing the filament in a sealed bag with packets of Silica Gel. Might take a few weeks to get rid of the moisture.

You will need a temperature mod if you plan on using aftermarket (non-oem) filament. Most aftermarket ABS melts @ 210-230 fahrenheit whereas the UP! oem is 260-270 fahrenheit.

Zortrax filament is the only filament I am aware of that is around the 260 mark.

Too high of a temperature will make the prints harder to remove from the perfboard and also harder to remove the support material. It also can result in a lower quality print.

andif62
Posts: 56
Joined: Sat Dec 20, 2014 3:26 pm
Location: Germany

Re: ABS Filament Problem

Post by andif62 » Mon Jan 19, 2015 6:14 pm

mb20music wrote:Most aftermarket ABS melts @ 210-230 fahrenheit whereas the UP! oem is 260-270 fahrenheit.
You mean Celsius not Fahrenheit, don´t you?

RSeeG
Posts: 14
Joined: Fri Jan 09, 2015 12:22 am

Re: ABS Filament Problem

Post by RSeeG » Mon Jan 19, 2015 8:39 pm

The filament I am using is: Flashforge Dreamer Genuine ABS 700g

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