I noticed that the filament guide that is sold with the Ultimaker ² could slow the movement thereof. Successive retractions shears the original guide. So I had the idea of a design pieces with original dimensions and to put a pulley. A single screw M3 can finalize the installation.Update 1: - A new pulley easier to print. (not even try)
Folded Spool for coiled filamentyoumagine.com
A Print in one go spool and mounting axle with a central roller bearing sized to fit the coils of Proto-Pasta filament. The spool unfolds to hold a coil of filament 50x30 mm with an internal diameter around 160 mm. Just unfold the two parts and push the mount into the hub. Printed in ~3 hours at 0.3 mm layer height, 10 % fill, 2 shells, 90 mm/s travel.
3D-printable split filament spool with threaded joint (135 mm)cults3d.com
This 3D-printable filament spool measures 135 mm i diameter (Ã¢ÂÂ 5 inches). Fully winded it contains approximately 350 grams of filament (Ã¢ÂÂ 12 ounces). It fits shafts with a diameter of 16 mm or smaller.The spool is made of two separate parts with a female and male threaded connection. The design can therefore be 3D-printed without the need of support material.As an accessory we also supply an axel which can be used with a power-drill to facilitate winding of new filament onto the spool.The video above shows how to assemble the 3D-printed spool and use a power-drill to fill it with TPU flexible rubber-like filament.
Filament Guide UM2youmagine.com
This small accessory can protect your FFF 3D printer filament from two common issues - cleaning and lubrication.A sponge wipes the filament clean from any dust particles and prevents them clogging the extruder.By dropping a few drops of common mineral oil on the sponge the filament passing through gets lubricated thus relieving the extruder motor from strain.Lubrication is specially useful if the filament needs to travel through long tubes before it enters the extruder.INSTRUCTIONS3D-print the provided STL file and insert a small piece sponge into the filament filter.Poke a hole into the sponge and make sure the filament passes through and comes out at the other end.Soak the sponge with a few drops of mineral oil (as for sewing machines, door hinges or bicycle chains).Place the filament filter somewhere in between the spool and the extruder. If you have a plastic tube which guides the filament to extruder (such as a bowden solution) make sure you place the filter before the filament enters the tube.See video for more information- http://youtu.be/rMDEsrgzC9M By Creative Tools- http://Creative-Tools.com - http://google.com/+CreativetoolsSe - http://twitter.com/CreativeTools - http://facebook.com/creativetools - http://youtube.com/creativetools - http://instructables.com/member/CreativeTools  http://youtu.be/rMDEsrgzC9M http://Creative-Tools.com http://google.com/+CreativetoolsSe http://twitter.com/CreativeTools http://facebook.com/creativetools http://youtube.com/creativetools http://instructables.com/member/CreativeTools
Filament cleaner for Ultimakeryoumagine.com
It may be a good idea to lead your filament through a sponge to automatically clean off dust, hairs etc. Couldn't find one for my Ultimaker, so I made a very simple one with OpenSCAD. I think the sponge causes very little friction, so no issues with printing and retraction. I'll see how it goes, maybe change the design a bit.Using the scad-file it's very easy to change dimensions if it doesn't fit your printer or if you want a different thickness etc. I made some stl-files with and without screw attachment and square cutouts./cleaner.stl/ - simplest one, just clamp it on the filament feeder /cleaner_screw.stl/ - can be attached to the feeder using a screw that's already there /cleaner_squares_screw.stl/ and /cleaner_squares.stl /are the same with some squares cut out in sides and back to make it even lighter. More difficult to print though.Cut a piece of sponge and feed the filament through./Just a copy of my thing at //http://www.thingiverse.com/thing:133353 // :)/ http://www.thingiverse.com/thing:133353