Direct (non-bowden) extruder for Ultimaker
By mpatoulachik
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Technical
-Printed parts (PLA does just fine), one of each.
-8mm hobbed bar (I use Hyena from www.arcol.hu) and M8 nuts
-3x 608 bearing (inlines and skateboards)
-3x 75mm M3 threaded rod
-approx 58mm bowden tube (I used a4/6mm aluminium tube but plastic will do just fine)
-2x springs (like a Wade's extruder)
-2x long M4 screws (depends on your springs)
-various M3 screw and nuts
-Cable/connector to disconnect your extruder stepper motor and reverse rotation (I used XLR)
-I use the original bowden tube as cable holder
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