Typhoon™ 2.85mm Filament Extruder

What's in the box

Item	Quantity
Typhoon™ 2.85mm Filament Extrusion System	1
Typhoon™ Heatcore	1
NEMA23 Stepper Motor	1
10A Solid State Relay (SSR)	2
Digital Stepper Motor Driver	1
Cable harness	1
Motor Cable	1
Dowel pins	2

What you need

• RTD-to-Digital Converter (i.e. MAX31865 / MAX31855). Typhoon™ is using PT100 for temperature sensing and you need an amplifier board (like MAX31865) to make them work with your printer controller board. To learn more about PT100 amplifier boards, visit Adafruit website. It's a good reference.
• Liquid-Cooling system (if you're not using Dyze Design Liquid Cooling Kit). You can find the minimum specs in our liquid cooling section.

WARNING

The Typhoon™ was designed to be actively cooled by a water loop. If you try to use it without a liquid cooling loop, you will experience issues.

Mounting

Mounting the Typhoon can be done from 3 faces; Left, Right, and Back. Each one have two possible ways for the screws; either through holes or tapped holes. Depending on your mounting plate, one solution might be easier to access. Each face has two dowels holes for accurate positioning.

• Threaded holes are M4x0.70 and thread engagement should be 7.00mm.
• Dowels Pins holes are 4.00mm x 6.00mm depth

Check out our drawing page to get the 3D STEP file. Design your bracket according to the available mounting options.

On the CAD file, consider the following references:

• 3.30mm holes are M4.00 x 0.70 threaded holes
• 4.00mm holes are reamed holes for dowels pins
• 4.50mm holes are clearance for M4 screws

Wiring

Heaters

Each heater has its own SSR. Two SSR can be provided with the Typhoon.

The fuse is optional but strongly suggested. Each fuse should be rated according to the power rating:

• Top heater, 250 Watts, 2.5A for 120VAC and 1.25A for 240VAC systems
• Bottom heater, 150 Watts, 1.5A for 120VAC and 0.75A for 240VAC systems

Many pins can be used as the temperature output control. Your 3D Printer Controller (or motion controller) pins can be as below:

• The standard extruder output (E0, E1, E2, etc). These are usually rated at the same voltage as your main power supply (12VDC or 24VDC).
• Any available expansion pins. These can be determined by checking the 3D Printer Controller specification pins.

Please refer to the following diagram for wiring the Typhoon:

Backplate Add-On Connectors

The Typhoon has two extra connectors at its back. One is for fans, the other is for the Z probe (bed sensor).

Fan connector

The fan connector mates with a Molex Mini-Fit Jr. The mating housing part number is 469920210.

Pin 0	Pin 1
GND	V+

Sensor connector

The sensor connector mates with a Molex SL. The mating housing part number is 50579403.

Pin 0	Pin 1	Pin 2
GND	Signal	V+

Stepper Driver

Using your own stepper driver

It’s possible to use your own stepper driver. However, make sure it can drive the motor with the specifications below, especially the current. We won’t be able to offer adequate support if an insufficient stepper driver is used.

Using the Digital Stepper Motor Driver

Connect the PULSE (STEP), DIR, and ENA between your motion controller and the stepper driver. Please refer to your motion controller manufacturer datasheet for proper connections and pin locations.

WARNING

Do not connect the power output from a stepper driver into the signal input from our provided stepper driver.

ENA is optional. Stepper will be always active when open.

Apply power through V+ and V- according to the stepper driver specifications. Stepper windings should be connected to A+, A-, B+, B-. Colors are usually as follows: Black, Green, Red, Blue.

Check the micro-stepping and current configuration. Current should be set at 2.7A and stepping should be set at 3200 pulses/revolutions (Equivalent to 16 micro-steps).

SW1	SW2	SW3	SW4	SW5	SW6	SW7	SW8
ON	ON	OFF	ON	ON	ON	OFF	ON

Liquid cooling

The Typhoon is actively cooled by a water loop. Cooled parts are made from aluminum alloy, thus an aluminum radiator is required to prevent galvanic corrosion. Please check our liquid cooling section for more details.

Part cooling

For part cooling, you can either design your own fan duct or you can take advantage of the integrated cooling shroud near the nozzle tip.

Each hole is about 3.2mm diameter.

How to use

The cooling shroud is intended to work with compressed air. You can plug the air compressor tubing in the Pneumatic Push-In fitting at the back of the heatcore.

A 20-30 PSI air compressor should be enough to cool your printed parts.

Using the cooling shroud with your printer board

If you want your 3d printer board to control the air supply, you will have to use a solenoid valve with a power mosfet and plug the relay signal in the FAN input of your 3d printer controller board.

Please refer to the following diagram for connecting the cooling shroud:

3D Printer Guideline

The Typhoon has a strong titanium heat barrier. However, this part is still the weak point of the melting zone and can be broken under certain circumstances. Make sure to follow these guidelines to prevent any damage to your Typhoon.

General

Printing without cooling is only possible with large parts. Thick and large layers take time to cool down, thus requiring you to reduce speed for small parts.

Z homing must be done very carefully due to thermal expansion. For bed leveling with a cold extruder, make sure you compensate the thermal expansion:

• 0.25mm @ 200°C
• 0.41mm @ 300°C
• 0.56mm @ 400°C

Typhoon is designed and tested for 2.85mm filament. Never use “real” 3.00mm filament.

Use Z lift

Raising the Z axis between each fast-travel is required. It will prevent any collision with the printed part. See the Slicer section for more info.

Consider thermal expansion

It’s critical to consider the heat cylinder thermal expansion when doing the bed leveling. For example, if leveling at room temperature, the printing head will be 0.25mm lower. See the General topic to learn more.

Maximum Axis Force

Make sure your axis isn't overpowered. Steppers don’t give feedback on their torque and an overpowered axis could easily damage the Typhoon.The Typhoon can resist a force of 50N at the tip of the nozzle.

Robotic Arm Guideline

If you plan on installing the Typhoon on a robotic Arm, you'll need to get some extra hardware to get the same features as a 3D printer controller. These items are the following:

• A motion planner capable of outputting STEP / DIR pulses for the stepper driver.
• Two (2) PT100 temperature sensor inputs.
• Two (2) digital output to drive the SSRs.

Firmware

Marlin Firmware

Configuration.h

Set number of extruders:

#define EXTRUDERS 2

If you are using the included PT100 temperature sensor (using MAX31865 amplifier board), set the following values:

#define TEMP_SENSOR_0 -5
#define TEMP_SENSOR_1 -5

TIP

If you are not using MAX31865, please refer to Marlin thermal settings for other PT100 configurations.

Set temperature min temp:

#define HEATER_0_MINTEMP 19
#define HEATER_1_MINTEMP 19

Set temperature max temp:

#define HEATER_0_MAXTEMP 500
#define HEATER_1_MAXTEMP 500

WARNING

The temperature sensor has a slight response time, and is damaged after 500°C, so if you set the fail safe to 500°C, it may rise to 525°C because of the response time. In that regard, we suggest to set a lower max temperature such as 480 or 485.

The heaters are very powerful, which is required for engineering and advanced polymers. If you are planning on printing low temperature, reduce the bang_max from 255 to 127.

Set temperature bang_max:

#define BANG_MAX 127

Increase the PID_functional_range:

#define PID_FUNCTIONAL_RANGE 40

Set the base PID values:

 #define DEFAULT_Kp 2.85
 #define DEFAULT_Ki 0.07
 #define DEFAULT_Kd 27.57

Set the extruder steps per mm: Note: {X Axis, Y Axis, Z Axis, E Axis} The value of the XYZ axis may vary and are shown as XXX.XX

#define DEFAULT_AXIS_STEPS_PER_UNIT   { XXX.XX, XXX.XX, XXX.XX, 274 }

Set the max feed rate: Note: {X Axis, Y Axis, Z Axis, E Axis} The value of the XYZ axis may vary and are shown as XXX.XX

#define DEFAULT_MAX_FEEDRATE          { XXX, XXX, XXX, 50 }

Switch enable logic for the extruder motor:

#define E_ENABLE_ON 1

Configuration_adv.h

Configure the external stepper driver

#define MINIMUM_STEPPER_DIR_DELAY 5
#define MINIMUM_STEPPER_PULSE 3
#define MAXIMUM_STEPPER_RATE 200000

RepRap Firmware

TIP

In your configuration file, you should find values similar to the ones below. However, we do recommend that you use the online ReRap Firmware configurator tool.

WARNING

The following information is based on Duet 2 and RepRap Firmware 3.x. We strongly suggest that you also read the official Duet/RepRap documentation to make sure you correctly connected and configured your Duet board, MAX31865 daughter board and RepRap firmware version.

Config.g

If you are using the included PT100 temperature sensor, set the following values:

M308 S1 P"spi.cs1" Y"rtd-max31865"    		 	; configure sensor 1 as PT100 on pin e0temp
M308 S2 P"spi.cs2" Y"rtd-max31865"             ; configure sensor 2 as PT100 on pin e1temp

Set temperature max temp:

M143 H0 S500
M143 H1 S500

WARNING

The temperature sensor has a slight response time, and is damaged after 500°C, so if you set the fail safe to 500°C, it may rise to 525°C because of the response time. In that regard, we suggest to set a lower max temperature such as 480 or 485.

Set the extruder steps per mm:

M92 XXXX.X YXXX.X ZXXX.X E274.0

Set the max feed rate:

M203 XXXXX YXXXX ZXXXX E3000

Assign heaters 1 and 2 to the same tool:

M563 P0 D0 H1:2 S"Typhoon"

Configure external stepper drivers:

M569 PXXX SXXX R1 T3:3:5:0

The heaters are very powerful, which is required for engineering and advanced polymers. If you are planning on printing low temperature, reduce the maximum PWM by 50%.

Set maximum PWM (Change HX by H0, H1, H2, etc. Based on your heater configuration):

M307 HX S0.50

Repetier Firmware

TIP

In your configuration file, you should find values similar to the ones below. However, we do recommend that you use the online Repetier Firmware configurator tool.

Configuration.h

Set temperature sensors to MAX31855 (with software SPI):

#define EXT0_TEMPSENSOR_TYPE 103  //103 is MAX31855 with software SPI, sensor pin is data input!
#define EXT1_TEMPSENSOR_TYPE 103

TIP

You can also set temperature sensors to MAX31855 with hardware SPI by setting #define EXT0_TEMPSENSOR_TYPE to 102.

Set temperature min temp:

#define MIN_DEFECT_TEMPERATURE 20

Set temperature max temp:

#define MAXTEMP 500
#define MAX_DEFECT_TEMPERATURE 505

WARNING

The temperature sensor has a slight response time, and is damaged after 500°C, so if you set the fail safe to 500°C, it may rise to 525°C because of the response time. In that regard, we suggest to set a lower max temperature such as 480 or 485.

The heaters are very powerful, which is required for engineering and advanced polymers. If you are planning on printing low temperature, reduce the bang_max from 255 to 127.

Set maximum power output:

#define EXT0_PID_MAX 127
#define EXT1_PID_MAX 127

Set the extruder steps per mm:

#define EXT0_STEPS_PER_MM 274

Set the max feed rate:

#define EXT0_MAX_FEEDRATE 200

Switch enable logic for the extruder motor:

#define EXT0_ENABLE_ON 1

Configuration_adv.h

Configure the external stepper driver

#define STEPPER_HIGH_DELAY 3
#define DIRECTION_DELAY 5

Slicer

• Set vertical lift to at least your layer thickness. For layers of 1.00mm, lift 1.00mm. Slicers aren’t yet optimized for large prints. Many over-extruded sections will be noticeable. Lifting the head will prevent any collision with the printed part.

• Wipe nozzle to at least the line width. For a line width of 3.50mm, wipe 3.50mm or greater.

• Set the heating to both heaters to the required temperature.

• Set end script to turn off both extruders:

M104 T0 S0 ; turn off extruder
M104 T1 S0 ; turn off extruder

• Output flow and pressure greatly changed depending on the printing speed. To get the best result, keep the output flow steady by keeping the same speed everywhere.

• Change the filament setting to 2.85 mm. Typhoon™’s step/mm was calculated using the area of a 2.85 mm filament. You will notice an exaggerated over extrusion with 1.75 mm filament in the slicer’s settings.

Maintenance

Gears

The gears can be accessed by removing two screws on the top. You should use those holes to grease the gears.

Remove the filament while greasing the gears and let the motor run freely while gently applying grease.

We suggest using white lithium grease. The Typhoon comes pre-greased with white lithium grease, ISO Viscosity Grade of 150.

We suggest using a small sized grease gun such as the Astro Mini Grease Gun.