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Revision to Hardware Overview

Tony

[summary_image|235summary_image|774]
[summary_image|235summary_image|774]
 
[title|Duet Hardware Overview]
The main hardware features of the 2nd Generation Duets (Wifi and Ethernet) are listed below
 
[image|228|size=large]image|772|size=large]

^^[[Hardware_Overview#Section_V1_03_and_earlier_feature_diagram|The feature diagram for V1.03 and earlier is below]]^^
[image|228|size=large]image|772|size=large]

^^[[Hardware_Overview#Section_V1_03_and_earlier_feature_diagram|The feature diagram for V1.03 and earlier is below]]^^
 
=== Duet 2 Wifi ===
* Dual extruders: 3 heater/thermistor channels for a heated bed and 2 extruders.
* 3 PWM controllable and 2 always-on fans. These can be run from either the input voltage, from 5V, or from external power for added flexibility.
* High Power rating: Each stepper driver is capable of 2.8A motor current, currently limited in software to 2.4A. The bed heater channel is specifically designed for high current (18A18A^^1^^)
* Fuses fitted for bed heater, steppers & other heaters, and fans (v1.04 onwards
)
* High Power rating: Each stepper driver is capable of 2.8A motor current, currently limited in software to 2.4A. The bed heater channel is specifically designed for high current (18A18A^^1^^)
* Fuses fitted for bed heater, steppers & other heaters, and fans (v1.04 onwards
)
* Connect via PC, tablet or smartphone on the same network to the [[Duet Web Control Manual|Duet Web Control]] web interface. There is no need for an app install, internet connectivity or cloud service to sign up for yet you can control your printer, upload and start prints from the browser.
* Setup your printer and update the firmware through the web interface. No need to compile your own firmware.
* Power monitoring to allow for state save on power fail.
* Beta support for the Duet3d Filament Monitor both [[Duet3dFilamentMonitor RotatingMagnetVersion|magnetic]] and [[Duet3dFilamentMonitor LaserVersion|laser]] versions.
 
^^1^^ Note that the board is rated to 18A on the bed heater channel however from version 1.04 forwards they are supplied with a 15A fuse fitted (18A are difficult to source). If you need 18A on the bed heater channel then you need to fit a 20A fuse and take further precautions against over current.
 
=== Duet 2 Ethernet ===
The boards all support connection to a computer over USB, using any standard 3D printer host control program. The Duet WiFi can also connect to a secure WiFi network, while the Duet Ethernet, Duet 0.8.5 and 0.6 have an Ethernet port. The primary way to control these boards is with a web interface controlled through the network. Although they have removable on-board SD cards, the network interfaces provide fast enough file transfer that it is generally preferable never to remove the on-board SD card.
 
The boards also support a colour touchscreen called the [https://duet3d.dozuki.com/Wiki/|PanelDue[PanelDue]].
The boards also support a colour touchscreen called the [https://duet3d.dozuki.com/Wiki/|PanelDue[PanelDue]].
 
See also:
 
* [https://duet3d.dozuki.com/Wiki/|Gettingguide|7|Getting connected to the Duet WiFi]
* [https://duet3d.dozuki.com/Wiki/|Getting connected to the Duet Ethernet or Duet 0.8.5]
* [https://duet3d.dozuki.com/Wiki/|Connecting an LCD control panel
Duet]
* [https://duet3d.dozuki.com/Wiki/|Gettingguide|7|Getting connected to the Duet WiFi]
* [https://duet3d.dozuki.com/Wiki/|Getting connected to the Duet Ethernet or Duet 0.8.5]
* [https://duet3d.dozuki.com/Wiki/|Connecting an LCD control panel
Duet]
 
== Power distribution ==
 
The Duet boards run on two basic power circuits. The digital electronics are supplied by a 5V circuit, which is internally converted down to the 3.3V levels that drive the MCU. This circuit also drives all the LEDs and sensors, and can be configured to feed the fans. The high-power devices, specifically the stepper motors and the heaters, are powered by a higher voltage, typically 12 or 24 V. This 12/24V circuit can be switched on and off through the PS_ON pin, if the power supply supports this (it may be a good idea to add such support through a relay, for safety reasons, if it doesn't) without interfering with the MCU at all. Alternatively, the Duet boards can draw power from this circuit to power the 5V circuit.
 
From Version 1.04 onwards the Duet 2 is fitted with 3 blade fuses:
 
* 1A for the VIN going to the fans
* 7.5A for the VIN going to the heaters and stepper motors
 
* 15A for the VIN going to the Bed heater.
 
See also:
 
* [https://duet3d.dozuki.com/Wiki/|Mounting[Mounting and cooling the boardboard]]
* [https://duet3d.dozuki.com/Wiki/|Power wiring[Power wiring]]
* [https://duet3d.dozuki.com/Wiki/|Mounting[Mounting and cooling the boardboard]]
* [https://duet3d.dozuki.com/Wiki/|Power wiring[Power wiring]]
 
== Motion ==
* [[Connecting thermocouples]]
* [[Connecting PT100 temperature sensors]]
* [[ChoosingChoosing_a_bed_heater|Choosing and connecting a bed heater]]
* [[ChoosingChoosing_a_bed_heater|Choosing and connecting a bed heater]]
* [[Connecting and configuring a chamber heater]]
* [[Connecting extruder heaters]]
The MCU driving the Duet boards has considerably more inputs and outputs than are used on the main board. Many additional lines are available on an expansion connector.
 
For the DuetWifi the [https://duet3d.dozuki.com/Wiki/|Duex2[Duex2_and_Duex5_Features|Duex2 and Duex5 expansion boardsboards]] add 2 and 5 extra channels respectively.
For the DuetWifi the [https://duet3d.dozuki.com/Wiki/|Duex2[Duex2_and_Duex5_Features|Duex2 and Duex5 expansion boardsboards]] add 2 and 5 extra channels respectively.
 
For the Duet 0.6 and 0.8.5 the DueX4 provides 4 additional stepper drivers, [https://duet3d.dozuki.com/Wiki/|endstop] connectors, heater outputs, and temperature inputs.
 
See the [https://duet3d.dozuki.com/Wiki/|Duet[Duet_Wiring_Diagrams|Duet WiFi and Ethernet wiring diagramsdiagrams]] for the expansion connector pinout.
See the [https://duet3d.dozuki.com/Wiki/|Duet[Duet_Wiring_Diagrams|Duet WiFi and Ethernet wiring diagramsdiagrams]] for the expansion connector pinout.
 
== Electronics power consumption ==
The Duet Wifi and Duet Ethernet both use the same base controller board. The difference is only in the communications module. This base controller board has gone through a number of minor revisions. The version number is marked on the silkscreen on the board, to the left of the large processor chip.
 
======= v1.04 ====

Compared to
v1.03 === it had the following changes:

* Provision of a miniblade fuse for the Motors and heaters - Supplied with a 7.5A fuse
* Provision of a miniblade fuse for the Heatbed - Supplied with a 15A fuse.
* Replaced erase switch with an erase jumper
* Changes to some layouts, and trace routing to further improve EMI performance.

Source files: https://github.com/T3P3/Duet/tree/master/Duet2/Duet2v1.04

==== V1.03 and earlier feature diagram ====

The feature diagram for V1.03 and earlier is below

[image|228]

==== v1.03 ====
======= v1.04 ====

Compared to
v1.03 === it had the following changes:

* Provision of a miniblade fuse for the Motors and heaters - Supplied with a 7.5A fuse
* Provision of a miniblade fuse for the Heatbed - Supplied with a 15A fuse.
* Replaced erase switch with an erase jumper
* Changes to some layouts, and trace routing to further improve EMI performance.

Source files: https://github.com/T3P3/Duet/tree/master/Duet2/Duet2v1.04

==== V1.03 and earlier feature diagram ====

The feature diagram for V1.03 and earlier is below

[image|228]

==== v1.03 ====
 
Compared to v1.02 it had the following changes:
Source files: https://github.com/T3P3/Duet/tree/master/Duet2/Duet2v1.03
 
======= v1.02 =======
======= v1.02 =======
 
* Compared to v1.01 it had the following changes:
Source files: https://github.com/T3P3/Duet/tree/master/Duet2/Old%20versions/DuetWifiv1.02
 
======= v1.01 =======
======= v1.01 =======
 
Compared to v1.0 it had the following changes:
Source files: https://github.com/T3P3/Duet/tree/master/Duet2/Old%20versions/DuetWifiv1.01
 
======= v1.0 =======
======= v1.0 =======
 
The first production version. Compared to the prototype it had the following changes:
Source files: https://github.com/T3P3/Duet/tree/master/Duet2/Old%20versions/DuetWifiv1.0
 
======= prototype (v0.10) =======
======= prototype (v0.10) =======
 
This board is identifiable by the white solder-mask (all other boards are blue) it was made in a limited production run compared the version.
 
===== 1st Generation Duets =====
===== 1st Generation Duets =====
 
======= Duet 0.8.5 =======
======= Duet 0.8.5 =======
 
An updated and expanded version of the Duet 0.6, called the Duet 0.8.5 (multiple unreleased versions came in between) was released in Aug 2015. More details are available of the RepRap wiki here:
[https://github.com/T3P3/Duet/tree/master/Duet0.8.5]
 
======= Duet 0.6 =======
======= Duet 0.6 =======
 
The first duet released was version 0.6, developed by Think3dPrint3d and RepRapPro in 2013. More details are available on the RepRap Wiki:

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