i noticed something in a menu 'clean up'.., what does that do

as far as verts.., i think i merged them all at least 10 times trying to fix this nut ill try again

but its tragic and is turning me off this model altogether?? work for hours then work fixing the work ive done (already with great care.., sheeesh.., glad im going to CGI school.., today is first day..,
so ill not be a lone modeler anymore,
i have been stuck on this problem for days instead of forging ahead making little wheels and such..,
(sung to the blues tune..(,' ive been rollin' and tumblin') by Muddy Waters.)


thanks mate

any other ideas.., but maybe the teacher at school will know also

M