How can I setup and install my new DyzExtruder extruder ?

This guide is short and well structured. Make sure to follow each step. If you don’t, you may not be able to use these products correctly or even damage them. Some features can save you a lot of trouble if you know how to use them properly.

1

Electronics

2

Firmware

3

Cooling

4

Slicer

5

Installation

6

Use

*

Bowden Setup

Step 1: Electronics

Plug the motor

Refer to your main board for proper extruder installation.

Adjust your current setting

Some boards can adjust motor current with the firmware. If you don’t see any potentiometer, there is a high chance that your board has this feature. Refer to the main board section if you aren’t sure. The values for firmware controlled current are detailed in step 2.

  1. Adjust the current limiter on your stepper drivers.

 

How can I adjust my stepper drivers?

How can I find my Rs resistance value?

How can I determine my stepper driver?

  1. Adjust your stepper drivers to the values listed below.

If your motor is running hot, above 45°C, reduce the current by 10% until you reach a maximum of 45°C. 90% of the rated current is a good starting point.

Motor coils have a wide tolerance regarding resistance. Two identical extruders might require different stepper adjustments. Temperature is the easiest way to determine if the motor is running at the right current.

The DyzeXtruder requires less than 1.68 amperes to work.

 

A4988 [email protected]Max: 0.67 V

90%: 0.6V

A4988 [email protected]Max: 1.34 V

90%: 1.21V

A4988 [email protected]Max: 2.69 V

90%: 2.42V

DRV8825 [email protected]Max: 0.85 V

90%: 0.77V

RAPS128Max: 1.84 V

90%: 1.66V

Step 2: Firmware

Insert the appropriate value from the above table depending on your stepper driver.

How can I determine my driving mode?

Mode1Mode2Mode3StepSteps/mm
LowLowLowFull18.125
HighLowLow1/236.25
LowHighLow1/472.5
HighHighLow1/8125
HighHighHigh1/16250
Mode1Mode2Mode3StepSteps/mm
LowLowLowFull18.125
HighLowLow1/236.25
LowHighLow1/472.5
HighHighLow1/8125
LowLowHigh1/16250
HighLowHigh1/32500
LowHighHigh1/32500
HighHighHigh1/32500
Mode1Mode2Mode3StepSteps/mm
LowLowLowFull18.125
HighLowLow1/236.25
LowHighLow1/472.5
HighHighLow1/8125
LowLowHigh1/16250
HighLowHigh1/32500
LowHighHigh1/641000
HighHighHigh1/1281500

Steps per mm

#define DEFAULT_AXIS_STEPS_PER_UNIT {____,_____,____,XXX}

 

Current setting

BoardMiniRamboRambo
Filepins_MINIRAMBO.hConfiguration_adv.h
Line
#define DEFAULT_PWM_MOTOR_CURRENT {1300, 1300, 1250}
#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135}
CurrentMax: 1680

90%: 1512

Max: 175

90%: 160

#define EXT0_STEPS_PER_MM XXX
extruder_steps_per_mm XXX # Steps per mm for extruder stepper

Please note Redeem consider full steps for its configuration. If you have a 250 steps / mm at 16 µsteps, your value is 250 / 16 = 15.625

steps_pr_mm_e = XXX

Step 3: Cooling

 

It is preferable to install a fan over the heatsink to help to cool the stepper driver. The high current set-up requires active cooling of the stepper driver in order to maintain a low enough temperature.

Make sure the stepper driver has a heatsink installed with thermal paste or thermal adhesive. The heatsink should be positioned precisely and should not touch the contacts pins.

Step 4: Slicer

Configure your slicer with the following values listed below.

Find the according setting based on your Slicer

ExtruderSetting NameBase valueMaximum value
DyzeXtruderRetraction Speed30 mm/s ( 1800 mm/min )75 mm/s ( 4500 mm/min )

Step 6: Install the DyzeXtruder

Use an existing bracket

Refer to the Preconfigured Printers section for brackets and mounting solutions.

Design your own bracket

Get the latest CAD here: Drawing

Please note that you only need to mount the bracket on one side of the DyzExtruder.

Do not remove the 4 front screws to mount your DyzExtruder.

Step 7: Use the DyzeXtruder

Insert a filament

Push the lever closer to the brass push-fitting. While keeping it pushed, insert the filament. Rotating the filament can help it going through the extruder more easily.

Remove a filament

Push the lever closer to the brass push-fitting. While keeping it pushed, remove the filament.

Install a HotEnd

Using a 2.5mm Allen, loosen the top button head cap screw by a few turns. Using a 2mm Allen, loosen the bottom button head cap screw by a few turns too.

Using a 2.5mm Allen, slightly tighten the top button head cap screw until the GrooveMount plate touches the HotEnd. Using a 2mm Allen, tighten the bottom button head cap screw until it touches the GrooveMount plate.

Position the HotEnd.

Using a 2.5mm Allen, slightly tighten the top button head cap screw until the HotEnd is held in place.

Remove a HotEnd

Using a 2.5mm Allen, loosen the top button head cap screw by a few turns.

Turn the hotend GrooveMount holder and remove the hotend.

Setup for Bowden

The DyzeXtruders product can work either way, either in direct drive using the groove mount system or by reversing the motor direction for Bowden setup.

  1. For the extruder alone, you need a length of 15mm, from the top.
  2. Add the height of your fitting.
  3. Mark the tubing to visualize the depth.
  4. Insert the tubing up to the mark. The filament must be well guided inside the hotend with this tubing.
Measure example

Method 1: Switch the cable orientation

The 4 pin cable connected to your board can be connected in the opposite order by making an 180° rotation. This will reverse the motor direction as the coils order are reversed.

Method 2: Firmware modification

Firmware can reverse the extrusion direction. Find the corresponding option and reverse the logic.

Marlin

#define INVERT_E0_DIR true

Repetier

#define EXT0_INVERSE 1

Smoothie

alpha_dir_pin !0.5

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