bert.v6
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Ligament management

Sun Nov 19, 2017 10:11 pm

Now the ligament spools are parked in the cradles, the ligaments get kind of tangled with the x-axis spiral wrap.
How do you deal with that?

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joan.t
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Re: Ligament management

Mon Nov 20, 2017 12:03 am

hi Bert,

I have my filament reels on a shelf with ptfe tube guiding the filament to the extruders, see the pictures below
bowden feed.JPG
bowden feed.JPG (48.92 KiB) Viewed 135 times
Bowden.JPG
Bowden.JPG (33.02 KiB) Viewed 135 times

there is a break in the bowden to prevent back feeding causing the filament to come off the reel sides and tangling


regards Joan
I try to make suggestions that I believe to be well founded and safe,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions,
what you do, is YOUR responsibility.

bert.v6
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Re: Ligament management

Mon Nov 20, 2017 3:55 pm

Hi Joan,
That is a nice idea.
I thought the filament is hygroscopic.
Is there no need to store the spools in a container?

joris.m
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Re: Ligament management

Mon Nov 20, 2017 7:40 pm

Not needed for simple PLA.

PVA, that's a different story.

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PJR
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Re: Ligament management

Mon Nov 20, 2017 7:43 pm

bert.v6 wrote:
Mon Nov 20, 2017 3:55 pm
I thought the filament is hygroscopic.
Is there no need to store the spools in a container?
Ideally, you should store it sealed with silica gel, but you will be OK without for a few weeks. PLA will "go off" when it gets damp; it's quite obvious when this happens. The extrusion will become a little porous and the temps will need increasing.

Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage or loss.

bert.v6
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Re: Ligament management

Wed Nov 29, 2017 3:58 pm

I have more or less folowwed Joans idea. I have the spools on a shelve under the printer.
But, the PTFE with the filaments inside, still mess up with the spiral wrap.

@PRUSA, there must be a beter way do deal with this?

nils.t
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Re: Ligament management

Wed Nov 29, 2017 8:38 pm

A guy on thingiverse had this brilliant idea:
https://www.thingiverse.com/thing:2483029

I made myself one of those (and added a few alu strips to stabilize). It works very well, the filament is fed slightly above the wire harness.

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