First, straighten the filament and gently push into the feeding hole at the same time, use the other hand to slide the switch(at the back of printer)to “FEED” gear. Then wait about 1 minute (machine is warming up), release the material when feel the filament is caught by the machine. Then wait another 10 seconds to observe if there has “silk” coming from the machine. Slide the switch to middle gear when more silks come out. Till this time, filament fed successfully. If you operate based on the above steps, but no silks come out from nozzle after waiting for more than 5 minutes, please re-power machine and try again.