How to NOT fix a rotring Isograph

In this video I Share with you how I Open the nib of a rotring Isograph that didnˋt work anymore. I tried to clean ist for several times properly, but it wouldnˋt help. So I decided to take a Look inside the nib to See if I could fix it. At first I thought it worked out well, but one day later it showed that it all went wrong….