request for help for snap mechanism type pen

[emiliano_rainoldi]

good design to all!
I need help to realize a similar system (if not equal) to the locking mechanism of the pens consisting of a button, a slider, a rotation/unlock guide and a forward stem.
I have already read the discussion:http://www.cad3d.it/forum1/showthre...-dispositive-of-dislock-a-scatto-(type-penne)But I haven't been any help... maybe because I'm just trying to figure it out. . .

 

[MassiVonWeizen]

help in what way?
real project?
on the use of autocad?
materials, forces, cinemas?

 

[emiliano_rainoldi]

...a help to design...but above all the concept, or better the cinematisms.. .