WANHAO Duplicator i3 First Run Experience page 8

Once the tubes are disconnected, you can go ahead and feed the filament into the
guide tubes from the back until you see it come out at the front. 4.4
Make sure that the filament loads up from the center on both spools, so you don't
get jams during printing. One of the spools will have to go on backwards. You
want it to look like 4.3
After you've fed the filament through, press the
start to heat both extruders 4.5
. The machine will
Middle Blue Button Middle Blue Button
Middle Blue Button Middle Blue Button