1 Topic by supraflyer

  • supraflyer
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  • Registered: 2012-09-02
  • Posts: 86

Topic: vertical mount question

I modified my filastuder with Ian's hopper and ran a few pounds of ABS. The filament is great. dimensionally it is +/- .0015".
I did have a problem winding it with my hand drill. The filament seems to have taken a twist that only allows about 10 winds before there are three twists in the filament that require untwisting before continuing to wind. I ended up hand winding the filament still having to untwist every 10 or so wraps. Have I done something wrong or does the filament take a twist with every loop on the floor?
Thanks for your help in advance.

2 Reply by elmoret

  • elmoret
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  • Registered: 2012-10-11
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Re: vertical mount question

+/-0.0015" is +/-0.038mm for us metric guys.

I'll let Ian chime in, though I'm not sure how much he ran onto the floor - he's had a winder in one form or another for a while now.

Here's one of the users that runs vertical, you might contact him?

http://bitsintoatoms.wordpress.com/2013 … -vertical/

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

3 Reply by IanJohnson

  • IanJohnson
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  • Registered: 2012-08-07
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Re: vertical mount question

It definitely has a twist coming out.  From some of what I've read, it is probably because the long molecules get oriented in a twist from the turning of the screw.  In the industrial machines, going through the mesh straightens them out, but it doesn't seem to have that kind of effect in the Filastruder.  When using the winder this makes it necessary to keep the extruder and winder a minimum of 18"- 20" apart.  The weight of the filament hanging down counters the twisting action.  If you get them closer, the filament can try to come out more sideways than down at some points.  When extruding to the ground, that twist is probably what makes it lie down in a neat coil.

I think it is also a matter of how a coil works.   If you have ever bought filament that came in a coil and tried to get it onto a spool, pulling the filament sideways from the coil almost always results in a twist.  If you spin the coil it comes along cleanly.  Also if you are spooling the coil up from its side, try to make sure that the spool is spinning in the same direction that the coil would spin if you unwound it like a spool, keeping the takeup spool parallel to the coil.