Reprap Prusa Mendel I2 - Nozzle clogged??

Hi Guys,

I'm Mauro from Sydney and I've recently purchased a Reprap pro but I've encountered some problems.

Basically what happen is that the filament comes out from the nozzle really slowly, also the motor bits that push the filament in to the hot end skip on the filament itself, like if there something stuck in to the noozle.

Also if on Pronterface when I try to extrude 50mm of filament from the noozle comes out probably about 10mm maximum.

I'll attach a video to explain better my problem.

I want also to take this occasion to ask you if there is any meetup for newbies or courses to learn how to 3d print.

Thanks in advance for the attention and for any help.