If you need 18A on the bed heater channel then you need to fit a 20A fuse and take further precautions against over current.

EXTERNAL WORKS helps you reach a faster, better quality of decision about who and what to work with. To do this there are 5 small drill-able solder jumpers on the underside of the board labelled EN5 to EN9.The Duet 2 WiFi and Ethernet supports power distribution to and control of three heaters: a heated bed (assumed to be the highest current draw with a maximum of 18A) and two extruder heaters. Installation of both the WiFi and Ethernet modules on the same board at the same time is not supported. That said, having it is great, but due to the nature of the laptop with its upward-angled display to provide a 90° angle to your eyes, the DUEX display angles upwards slightly as well, which takes a little getting used to.

The 1080p LCD screen has a 60Hz refresh rate, so you’re absolutely not compromising on display quality.As with the Duet 2, you must never connect or disconnect anything (except the USB connector) when the board is powered up. Convection cooling will usually be sufficient, but if you are using high stepper motor currents then you may wish to add a fan below the board to encourage the upward flow of air. However, it is public domain in Canada (where IMSLP is hosted) and in other countries (China, Hong Kong, New Zealand) where the copyright term is life+50 years. You’ll also have to use new pads – with twelve supplied in the box – if you want to use this display on a different machine.