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Pellet Extruders technology and article: 10 Tips for Converting a 3D Printer to Pellet Extrusion

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In depth look at whats available for extruders, build types and installs.
lots of information and research to help guide you through the buy or build
process. The forum is building a hi-temp 3d printer that utilizes a pellet extruder built from plans and acquired parts.

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admin
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This info from mahor design

Firmware configuration

Thermistor

#define TEMP_SENSOR_0 1

Steps per millimeter of the motor (1/16 recommended)

#define DEFAULT_AXIS_STEPS_PER_UNIT {  80, 80, 400, 305}

G-code command: M92 E305

^ Home ^

PID calibration

Autotune command via Pronterface or Repetier

G-code command: M303 E0 S200

#define DEFAULT_Kp 39.24

#define DEFAULT_Ki 5.38

#define DEFAULT_Kd 71.52

G-code command: M301 P39.24 I5.38 D71.52

 

 

https://mahor.xyz/wiki/pellet-extruder-wiki/

DUET3D

M305 P1 T100000 B4138 R4700; Thermistor set

M143 H1 S300; max temp

M563 P0 S "v4" D0 H1; Define tool 0

M92 E720; steps *

M906 E1680.00; AMPS

M302 P1; cold extrusion SR

M570 H1 P130 T150; heater fault

M303 E0 S200; autotune PID

M301 P39.24 I5.38 D71.52; define PID

 

* STEPS PER UNIT

1/16 microstepings

ABS-HI 720

ABS-HF. 610

PLA 405

The extruder from high temp is different, it has a different screw and barrel so this info is for referance only to establish a working setup, once established I will post

1

 .137 to       .187

 

 

Laminator Configuration

Filament settings

  • Diameter = 1.75
  • Extrusion multiplier = 1 *

* Depending on the type of plastic or pellet size, the flow may vary so it will be necessary to adjust it using the extrusion factor.

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admin
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This is the progress i made with the build i made from the high temp printer plans

This was a BIG achievement

This is with a .4 head and the recommendations are using a .8  

That will be my next attempt

also i am using some pellets that have not been conditioned, there are recommendations on handling the

the media, i think that will make a big difference also

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