Spreading Ring for Reverse-Bend Filament Feed (for Ultimaker 2)
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The 5 piece parts must be secured together using adhesive. New to version 9 (compared to version 6): Assembling is now even simpler. Flip the filament spool's winding direction and guide the filament around the ring as illustrated in the accompanying photograph. Note that the filament passes behind the Bowden tube, which stabilizes the ring. I have also included a guide for the ring, which is simply attached to the feeder using clips. This guide serves to prevent the ring from slipping off and falling. The logic behind this "reverse bend" technique is discussed in the Ultimaker forum at http://umforum.ultimaker.com/index.php?/topic/5454-ultimaker2-reduce-filament-friction-in-the-bowden-tube/
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