Difference between revisions of "Filament Heads"

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(Settings for Filament Heads)
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Latest revision as of 14:42, 31 July 2020


Filament heads are how we print (using FFF or FDM) with filament-based materials which are deposited at over 150°C, depending on the head.

Note that at present, our Filament heads work with 1.75mm filament (actually, 1.6mm to 1.9mm), but not 3mm filament.

Materials for Filament Heads

The following materials can be printed from Filament heads.

  • ABS (Acrylonitrile Butadiene Styrene)
    • Flame Retardant ABS
    • ABS - PC Alloy
    • Conductive ABS
    • Smart ABS
  • BendLay
  • Flex 45
  • HIPS (High-Impact PolyStyrene)
  • LayBrick
  • LayWoo-d3
  • MoldLay
  • Ninjaflex
  • Nylon
    • Taulman 618, 645, 910
  • PC (PolyCarbnoate)
  • PEI (PolyEtherImide) - AKA Ultem
  • PEEK (PolyEther Ether Ketone)
  • PET (PolyEthylene Terephthalate)
  • PETG PolyEthylene Terephthalate Glycol-modified)
  • PLA (PolyLactic Acid)
    • EcoFlex PLA
    • Conductive PLA
    • SS PLA (Stainless Steel infused)
  • PlastInk_Rubber
  • PP (PolyPropylene)
  • PVA (PolyVinyl Alcohol)
  • T-Glase
  • Ultem

Filament Heads

Filament-based printing is available through the following heads:

  1. General Filament Head Videos:
    1. Yt.png MK Series Printing Tips
    2. Yt.png Post Processing with a Heat Gun
    3. Yt.png Loading and Unloading Filament in the MK Series head
  2. MK1-250 Extruder for Standard Filament Videos:
    1. Yt.png Overview
    2. Yt.png Loading and Printing
  3. MK2-250 Extruder for Flexible Filament Videos:
    1. Yt.png Overview
    2. Yt.png Loading and Printing
  4. MK1-450 Extruder for High-Temperature Filament Videos:
    1. Yt.png Overview
    2. Yt.png Loading and Printing

Please see our Data Sheets as well.

Table of Filament Heads

The following table compares the properties of the various Filament heads, including which heads are recommended for which materials. The MK1 heads drive matieral from one side, with a spring-loaded bearing system to maintain pressure and positioning. The MK2 heads drive the material from both sides, and are designed for more flexible filaments.

Filament Head Properties
Head Min Temp Max Temp Filament Type Filament
Size
in mm
Nozzle
Type
Nozzle Sizes
in mm
Recommended For Description
MK1-250 150°C 250°C Standard 1.75
+/-
0.15
Hyrel
Special
.35, .50, .75, 1.0 ABS, HIPS, LayBrick, LayWood, Nylon, PC, PET, PETG, PETT, PLA, PP, PVA, T-Glase Standard Torque for 1.75mm Filaments
MK1-450
discontinued
275°C 450°C Engineering 1.75
+/-
0.15
E3D v6 or MK8
compatible
standard
options
PEEK, PEI (Ultem), PEKK, PPSU Standard Torque for High Temperature 1.75mm Filaments
MK2-250
extra torque
150°C 250°C Flexible 1.75
+/-
0.15
Hyrel
Special
.35, .50, .75, 1.0 BendLay, EcoFlex PLA, FilaFlex, Flex45, Ninjaflex, PlastInk Rubber High Torque for Flexible 1.75mm Filaments
HT1-250
high torque
150°C 250°C Standard 1.75
+/-
0.15
E3D v6
compatible
standard
options
ABS, HIPS, LayBrick, LayWood, Nylon, PC, PET, PETG, PETT, PLA, PP, PVA, T-Glase High Torque for Standard 1.75mm Filaments
HT1-450
high torque
275°C 450°C Engineering 1.75
+/-
0.15
E3D v6 or MK8
compatible
standard
options
PEEK, PEI (Ultem), PEKK, PPSU High Torque for High Temperature 1.75mm Filaments
HT3-250
high torque
150°C 250°C Standard 2.85
+/-
0.15
E3D v6
compatible
3 mm bore
standard
options
ABS, HIPS, LayBrick, LayWood, Nylon, PC, PET, PETG, PETT, PLA, PP, PVA, T-Glase High Torque for Standard 2.85mm Filaments
HT3-450
high torque
275°C 450°C Engineering 2.85
+/-
0.15
E3D v6 or MK8
compatible
3 mm bore
standard
options
PEEK, PEI (Ultem), PEKK, PPSU High Torque for High Temperature 2.85mm Filaments

Research Papers Citing Hyrel Filament

These are now listed by year here.

Firmware Versions for Filament Heads

Firmware information is listed on our Firmware page.

Settings for Filament Heads

All printers and heads shipping after 1 Jan 2020 have shipped with some release of version 4, and these values are shown below.

Older settings are listed here.

Some settings for the MK-Type heads (like temperature, prime/unprime values) will vary, depending on what material you are printing with. Nozzle diameter should accurately reflect what nozzle you have loaded (0.5mm is default) AND what path width you sliced for (recipe path or extrusion width should be nozzle diameter plus 10%). Having said that, here are our default shipping settings:

Settings MK1-250, MK2-250 MK1-450 HT1-250 HT1-450 HT3-250 HT3-450
Material
Type (any) (any) (any) (any) (any) (any)
Color (any) (any) (any) (any) (any) (any)
Nozzle 0.500 0.500 0.500 0.500 0.500 0.500
Layer (any) (any) (any) (any) (any) (any)
Temp Info
Print Temp 240 410 240 410 240 410
Power Factor 100 100 100 100 100 100
Minimum 0 290 0 290 0 290
Maximum 250 450 250 450 250 450
Overrides
Pulses / µL 84.5 84.5 175 175  ?  ?
Multiplier 1.000 1.000 1.000 1.000 1.000 1.000
Prime
Steps 200 200 300 300  ?  ?
Rate 10,000 10,000 10,000 10,000 10,000 10,000
Dwell Time 35 35 30 30  ?  ?
Before Tool Change 2 / n/a / n/a
Unprime
Steps 200 200 300 300  ?  ?
Rate 10,000 10,000 10,000 10,000 10,000 10,000
Dwell Time -35 -35 -30 -30  ?  ?
After Tool Change 2 / n/a / n/a
Offsets
Clone Head Off Off Off Off Off Off
X 0,000 0,000 0,000 0,000 0,000 0,000
Y 0,000 0,000 0,000 0,000 0,000 0,000
Z 0,000 0,000 0,000 0,000 0,000 0,000
Head Info
Model MK1, MK2 MK450 MK1, MK2 MK450 MK1, MK2 MK450
PCB Type 4988/160J 4988/160J 4988/160J 4988/160J 4988/160J 4988/160J
RTD Type 1k_PLAT 1k_PLAT 1k_PLAT 1k_PLAT 1k_PLAT 1k_PLAT
Plot Settings (any) (any) (any) (any) (any) (any)
Motor Settings
Step Mode 16th 16th 16th 16th 16th 16th
Motor Current Normal Normal Normal Normal Normal Normal
Max Jog Rate 1,500 1,500 1,500 1,500 1,500 1,500
Rot Speed 1,500 1,500 1,500 1,500 1,500 1,500
Settings MK1-250, MK2-250 MK1-450 HT1-250 HT1-450 HT3-250 HT3-450

Changing Nozzles

How to disassemble the nozzle from the MK1 head:

  1. Carefully:
  2. Heat to the printing temperature of the material loaded.
  3. Move the manual lever to the left, retracting material until it is free of the hobbed shaft, then remove by hand.
  4. Turn off heat to the head and remove it from the yoke.
  5. With a 1/4" driver or wrench, remove the nozzle.
  6. Inspect the nozzle cavity for any stray material; if found, remove with tweezers, solvent, air pressure or other means.

How to reassemble the nozzle on an MK1 head:

  1. Carefully:
  2. Ensure your MK1 has no filament loaded.
  3. With a 1/4" driver or wrench, attach the nozzle.
  4. Use normal procedure for heating and loading filament.