26 Reply by MeshMoth (edited by MeshMoth 2012-11-29 23:20:30)

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Re: Humid Filament

Ahh... yeah, I set it to 1.69. Its not the most consistent its like 1.67 - 1.72. I have a cheap caliper from Harbor Frieght, so i have no clue how accurate that is.

Edit: Sorry Ian, I made a mistake. I didn't think twice when I first got the caliper that I forgot that it's in inches and not metric. I just remeasured the filament and converted it with google and came up with .07 in and 1.77mm. Hope it helps and sorry for the confusion. I measured it all over and it really is pretty consistent at 1.77mm. It dropped to about 1.75 in a small spot but still pretty consistent. Might be why my flow rate is so low at .65 instead of what everyone else is around .8 and .9.

27 Reply by elmoret

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Re: Humid Filament

IanJohnson wrote:

I meant the diameter of the filament itself.  The one I have from Repraper varies from something like 1.58 to 1.69.

Ha! This makes me feel better about my extruder!

Filastruder - the robust, inexpensive filament extruder
E3Dv6 All Metal Hotend - the premier 3D printing hotend

28 Reply by Stoney (edited by Stoney 2012-11-30 04:30:04)

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Re: Humid Filament

using a glass bed and I have not even considered hairspray, not even cleaned it with acetone yet, it is as it came from the hardware store.
i smoothed the edges of one of my sheets with a diamond file and while i was it, scratched up the surface of it as well, i did not notice it sticking any better .. in fact i would say it did not stick as well as smooth glass.
i only run 2 front clips now, no rear one, its easy to remove the glass and place it on another sheet on the desk, wait 10 seconds and the parts pop off.
the surface against the glass looks awesome, especially with clear filaments.

edit: i should add i have left the original kapton in place as well, it is easy to go back to original if required, unclip and adjust Z.

29 Reply by JB

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Re: Humid Filament

Hi, I'm a new user learning the solidoodle. Thought I'd share a method that worked for dehumidifying a spool of ABS filament. The extruded material was showing a bit of bubbling and consequently over-volume delivery. As suggested by several people above, drying an a heated box worked well.
Recipe:
1 20W light bulb
1 styrofoam cooler
1 spool filament.

Cook for 3 hours in the cooler at ~65C (equilibrium temp with the small light bulb), That cured the moisture problem without melting anything.

30 Reply by neatherbot

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Re: Humid Filament

I live in Texas where it is really humid all year long and have always put filament in ziplock bags with desiccant packs. But you never know when the desiccant has stopped working or if the bags are truly keeping moisture out. I came up with this method to create a water tight container that keeps moisture out and filament fresh. Check it out here! [video]
Let me know what you think.