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JPN Extruder for CMYK+ colorprinting
by jpnurro
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The Joined PiNion Extruder, proposal for the multi/fullcolor printing.
Many concepts are based on the Bowden extruders. One drawback of the Bowden is a slag hysteresis when extrude/retract. This makes the accurate color mixing difficult.
Obviously placing 4-6 stepper motors next to print head would be problematic because of space and mass. BUT, why we would need the own motor for the each filament... I started to think if less is more.
To add actuator (e.g servo) controlled gearbox the
Many concepts are based on the Bowden extruders. One drawback of the Bowden is a slag hysteresis when extrude/retract. This makes the accurate color mixing difficult.
Obviously placing 4-6 stepper motors next to print head would be problematic because of space and mass. BUT, why we would need the own motor for the each filament... I started to think if less is more.
To add actuator (e.g servo) controlled gearbox the
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