Connect to your Duet Web Control Interface via your network using the IP address your M3D Crane Series printer displayed during the network setup step. Once you are connected, you can proceed to heating up your printer bed.
In the Duet Web Console Interface find the table: Tools/Heaters/Extra pictured below. In the row Bed change the active temperature from 0C to your desired temperature and press Enter.
In order to turn the heated bed off, set the temperature back to 0 in the Active column and press Enter.
You can monitor the heating of your bed in both the Tools as well as the Temperature Chart sections of the Duet Web Control Interface. The Current column within the Tools section will display the temperatures as they change, and the chart will show you the temperature progression allowing you to easily spot any unwanted spikes or drops in the bed or nozzle.
In the Duet Web Control Interface find the table Tools/Heaters/Extra, pictured below. You will be selecting Tool 0, which represents your nozzle. Once your tool (Tool 0) is selected, simply change the Active temperature from 0C to your desired temperature.
In order to turn off the heater, set the tools active temperature to 0 and press Enter. Remember that a tool will heat up to the standby temperature when the tool is not selected, but was previously selected. You can see which tool is activated by the underline of the tool name in the Duet Web Console.
Now you know the basics of heating your bed and nozzle it's time to move on to loading and unloading filament!