Stereolithography machine with facilitated initialization

Stereolithography machine comprising:

• a tank suited to contain a light sensitive resin, provided with a bottom;
• a modelling plate facing said bottom;
• a moving unit suited to move said modelling plate according to a direction of movement orthogonal to said bottom;
• a coupling unit suited to associate said modelling plate with said moving unit, comprising a first coupling member integral with said moving unit and a second coupling member integral with said modelling plate and movable with respect to said first coupling member at least according to said direction of movement, in such a way as to define a plurality of mutual configurations;
• tightening means suited to be operated to lock the movement between said coupling members in any of said mutual configurations in such a way as to make said modelling plate and said moving unit integral with each other;
• characterized in that said tightening means are suited to be operated so as to tighten said coupling members against each other according to a tightening direction that is orthogonal to said direction of movement;
• wherein said coupling unit defines a stop position for said second coupling member with respect to said first coupling member during the movement of said second coupling member towards said bottom and comprises forcing means configured to force said second coupling member in said stop position and
• wherein, said tightening means comprise two jaws provided with respective contact surfaces facing said coupling members, and adjusting means suited to modify the mutual distance between said two jaws.