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A new direct drive extruder with holder for K8200 and inductive sensor holder3D printer parts and enhancements
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After more than a year of challenging ourselves using different extruders’ topologies and feed screws, from the learned lessons, we propose a new geometry that takes into account the weak points and the desire of printing elastomers. The new extruder features are: simple to print and assemble, easy to use and to clean, capable to print with various kinds of materials including highly elastic ones. Besides, it has a potential of further development and a flexible model of the system that is possible to change. Therefore it is useful to change the nozzle diameter to sufficiently increase the speed; or to attach the filament sensor to control the fusion. The extruder was tested with E3D V6 normal hotend and Volcano, giving very good results. Check the photos of the vase printed in Ninjaflex.
The printing of spare parts is pretty easy. We use PLA. Note that main_body and idler must be printed in 100% infill. extruder_holder and sensor_holder are good with 50% infill. Remove the support material with stationary knife and file the holes to loosen them if needed. Do not forget to cut the PTFE tube properly (it is around 75 degrees angle) and insert it from down up. This is the key part on your way to print with elastomers.
Use mk8 and any stepper motor you prefer (we use NEMA17).
You can print E3D V6 Groove mount or order one. Up to you.
See assembly video: .
Also there is a full assembly zip attached, for you to see what is what.
Feel free to post your makes and remixes. Let us know if any of the models' files are damaged.
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