[committee] 3D printer filament breakage / storage

[Felix von Perger]

 From the UCC Facebook group, regarding 3D printer stuff -

> Wes Wilson 
> <https://www.facebook.com/wesleywilson?fref=gc&dti=197082577000332> I 
> want to throw out one other possibility, and one other solution idea.
>
> Obviously, right now, we aren't storing our PLA in the greatest way. 
> So we can't control for temp and humidity changes from morning to day 
> to night right now (we should totes get a Rubbermaid storage bin with 
> an open bag of desiccant or something though).
>
> But one other thing is, this isn't a completely uncommon issue. While 
> proper storage of filament is blamed a lot in the forums, one other 
> issue to consider is that when a specific fragment length is out of 
> the spool there is a lot of tension on it as it has the memory of 
> being wrapped in the spool, so the tension on that straight bit is 
> much higher.
>
> its fine when its moving, but other people also report (especially for 
> cheaper PLA) , that they can do an 8 hour print fine, but when they 
> leave the machine idle and come back 2 days later, its always snapped 
> clean at the spindle....
>
> NOW, this might not be the case, especially if you have video footage 
> of a hooded figure cutting the filament... but I thought I would bring 
> it up... I started researching it after our chat last week...
>
> one temporary solution (until we get a good storage box for the 
> filament, which i feel is the best solution, we should do a bunnings 
> run), could be to just add to our SOP that after you are done with the 
> printer, if you are the last user, like you know for sure no one is 
> using it right after you, you could remove the filiment from the 
> extruder clamp and put it back on the spindle... this could save PLA 
> that gets wasted on the breaks...
>
> just a thought....

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