Reservoir Heads

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Cold Flow is our term for fluid or emulsified (non-filament-based) materials which are deposited at room temperature, with or without UV Crosslinking.

Materials for Cold Flow

The following materials can be printed from Cold Flow heads. Note that more viscous materials may not be suitable for plastic syringes or smaller luer tips.

Heads for Cold Flow

Cold Flow is available through the following heads:


The following table compares the properties of the various Cold Flow heads:

Cold Flow Head Properties
Head Container Capacity Nozzle UV Crosslinking
EMO-25 Aluminum 25cc 1.5mm, 2.0mm, Luer No
COD-25 Aluminum 25cc Luer Yes
SDS-5 Syringe 05cc Luer No
CSD-5 Syringe 05cc Luer Yes
SDS-10 Syringe 10cc Luer No
CSD-10 Syringe 10cc Luer Yes
SDS-30 Syringe 30cc Luer No
CSD-30 Syringe 30cc Luer Yes
SDS-60 Syringe 60cc Luer No
CSD-60 Syringe 60cc Luer Yes

Research Papers Citing Hyrel Cold Flow

Settings

Some settings for the EMO-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 (1.6mm is default) AND what path width you sliced for. Temperature commands will be ignored by heads with no temperature control. Having said that, here are our default shipping settings:

EMO-Type Head Comparison
Settings EMO, VOL, KRA, COD, VCD, KCD Heads and New KR2
(17mm Tubes, Various Gear Ratios)
SDS, CSD, VSD, and CVS Heads
(Various Tube Diameters, Standard Gear Ratios)
DSD-30 (1:1)
19:1 Ratio 27:1 Ratio 51:1 Ratio 100:1 Ratio 100:1 KR2 5cc 10cc 30cc 60cc DSD-30
Material
Type Custom Custom Custom Custom Custom Custom Custom Custom Custom Custom
Color (any) (any) (any) (any) (any) (any) (any) (any) (any) (any)
Nozzle 1.600 1.600 1.600 1.600 1.600 1.600 1.600 1.600 1.600 1.600
Layer 0.300 0.300 0.300 0.300 0.300 0.300 0.300 0.300 0.300 0.300
Temp Info
Print Temp 35 35 35 35 35 0 0 0 0 0
Power Factor 100 100 100 100 100 100 100 100 100 100
Minimum 0 0 0 0 0 0 0 0 0 0
Maximum 0/100/200 0/100/200 0/100/200 0/100/200 0/100/200 0 0 0 0 0
Overrides
Pulses 1.600 2.300 4.700 8.500 14.750 0.750 0.580* 0.225 0.150 0.150
Feed Rate % 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000
Prime
Please note that Prime values will vary greatly from those shown, depending on the compressibility of your material.
Steps 600 700 1000 4000 6000 200 200 300 500 500
Rate 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000
Dwell Time (ms) 100 100 120 120 200 100 100 100 100 1000
Before Tool Change 1 1 1 1 1 1 1 1 1 1
Unprime
Please note that Unprime values will vary greatly from those shown, depending on the compressibility of your material.
Steps 500 550 800 3500 5000 160 160 225 400 400
Rate 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000
Dwell Time (ms) 100 100 120 120 200 100 100 100 100 1000
After Tool Change 1 1 1 1 1 1 1 1 1 1
Offsets
Clone Head Off Off Off Off Off Off Off Off Off Off
X 0,000 0,000 0,000 0,000 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 0,000 0,000 0,000 0,000
Z 0,000 0,000 0,000 0,000 0,000 0,000 0,000 0,000 0,000 0,000
Head Info
Model (varies) (varies) (varies) (varies) (varies) (varies) (varies) (varies) (varies) (varies)
RTD Type 1k PLAT_RTD 1k PLAT_RTD 1k PLAT_RTD 1k PLAT_RTD 1k PLAT_RTD 1k PLAT_RTD 1k PLAT_RTD 1k PLAT_RTD 1k PLAT_RTD 1k PLAT_RTD
Motor Current High High High High High High High High High High
Step Mode Sixteenth Sixteenth Sixteenth Sixteenth Sixteenth Sixteenth Sixteenth Sixteenth Sixteenth Sixteenth
* Thanks to Yasmine at VT for the precise calculation.