New Filament Extruder Help Hi All, So I've got a Filastuder to make my own filament but it's way too slow for my liking. Generally it has taken 8 hours + to make a single kg of filament so I'm in the process of making a much faster extruder. The aim of the extruder is to use a custom made 20mm extrusion screw to make filament at around 2 to 5kg per hour. With this in mind has anyone had any experience with making a machine like this? The main parts I am looking for help with is the design of a die for the extruder and the cooling/sizing of the filament after it is extruded. Thanks all https://reprap.org/forum/read.php?70,523098,523098#msg-523098 Tue, 14 Apr 2026 02:12:19 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?70,523098,528256#msg-528256 Re: New Filament Extruder Help https://reprap.org/forum/read.php?70,523098,528256#msg-528256
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greenman100
Faster than any 3D printer on the market can consume it.

Yes but what about in situations where you are running more then one printer 24/7 or have a deadline you need to meet but do not have filament in the required material or colour? In these situations the filastuder and similar are too slow to produce the required amount of filament or too inaccurate when the speed is increased. I've been using the filastruder with the filawinder and even that is still only +-0.1mm at best when a whole roll is sent through the laser micrometer at the default speed and with predried resin etc.]]> hjubm2 Plastic Extruder Working Group Thu, 02 Jul 2015 02:54:32 -0400 https://reprap.org/forum/read.php?70,523098,528077#msg-528077 Re: New Filament Extruder Help https://reprap.org/forum/read.php?70,523098,528077#msg-528077 greenman100 Plastic Extruder Working Group Wed, 01 Jul 2015 15:13:10 -0400 https://reprap.org/forum/read.php?70,523098,527903#msg-527903 Re: New Filament Extruder Help https://reprap.org/forum/read.php?70,523098,527903#msg-527903
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greenman100
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Frans@France
However and if wrong I'm sure others will correct me, the auger is not about speed but about filament diameter consistency. It's rather easy to get the lyman (or any other filament extruder) to do 1kg/hour or faster just throw in a more powerful motor.

That isn't true at all. Filastruder uses an off the shelf auger bit and users report +/-0.01mm.
but at a rather slow extrusion speed, when that speed is increased users report more fluctuation.]]> Frans@France Plastic Extruder Working Group Wed, 01 Jul 2015 07:43:44 -0400 https://reprap.org/forum/read.php?70,523098,527668#msg-527668 Re: New Filament Extruder Help https://reprap.org/forum/read.php?70,523098,527668#msg-527668
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Frans@France
However and if wrong I'm sure others will correct me, the auger is not about speed but about filament diameter consistency. It's rather easy to get the lyman (or any other filament extruder) to do 1kg/hour or faster just throw in a more powerful motor.

That isn't true at all. Filastruder uses an off the shelf auger bit and users report +/-0.01mm.]]> greenman100 Plastic Extruder Working Group Tue, 30 Jun 2015 15:57:00 -0400 https://reprap.org/forum/read.php?70,523098,525128#msg-525128 Re: New Filament Extruder Help https://reprap.org/forum/read.php?70,523098,525128#msg-525128 hjubm2 Plastic Extruder Working Group Tue, 23 Jun 2015 09:15:55 -0400 https://reprap.org/forum/read.php?70,523098,525127#msg-525127 Re: New Filament Extruder Help https://reprap.org/forum/read.php?70,523098,525127#msg-525127
However and if wrong I'm sure others will correct me, the auger is not about speed but about filament diameter consistency. It's rather easy to get the lyman (or any other filament extruder) to do 1kg/hour or faster just throw in a more powerful motor.

PS For the record, I have a lyman (heavily modified) doing 1kg 3mm ABS in 54min and that is not really pushing it yet. However all my research is concentrated on improving the diameter consistency which is the hardest part at these speeds. Currently around +/- 0.20mm]]> Frans@France Plastic Extruder Working Group Tue, 23 Jun 2015 08:59:12 -0400 https://reprap.org/forum/read.php?70,523098,525117#msg-525117 Re: New Filament Extruder Help https://reprap.org/forum/read.php?70,523098,525117#msg-525117
Thanks]]> hjubm2 Plastic Extruder Working Group Tue, 23 Jun 2015 08:33:30 -0400 https://reprap.org/forum/read.php?70,523098,525114#msg-525114 Re: New Filament Extruder Help https://reprap.org/forum/read.php?70,523098,525114#msg-525114 Frans@France Plastic Extruder Working Group Tue, 23 Jun 2015 08:28:27 -0400 https://reprap.org/forum/read.php?70,523098,523098#msg-523098 New Filament Extruder Help https://reprap.org/forum/read.php?70,523098,523098#msg-523098
So I've got a Filastuder to make my own filament but it's way too slow for my liking. Generally it has taken 8 hours + to make a single kg of filament so I'm in the process of making a much faster extruder. The aim of the extruder is to use a custom made 20mm extrusion screw to make filament at around 2 to 5kg per hour. With this in mind has anyone had any experience with making a machine like this? The main parts I am looking for help with is the design of a die for the extruder and the cooling/sizing of the filament after it is extruded.

Thanks all]]> hjubm2 Plastic Extruder Working Group Thu, 18 Jun 2015 06:30:58 -0400