Leaf Spring prototype preparation

M.Lenti

M.Lenti 2

Reminder

• Piet’s proposal: two dowels inserted into two mirror holes (vertical alignment); mirror weight as counterbalance

• Two leaf springs (horizontal alignment); pretensioning in nominal “zero” position

• Piezo actuators out of particles acceptance

14/07/2010

M.Lenti 3

Piet’s proposal

14/07/2010

M.Lenti 4

Carassiti drawings

• Delivered on june 3• Original (Piet’s) approach: center of horizontal

rotation “on” the mirror• “inverted” approach: center of horizontal

rotation “far” from the mirror• Both taken in consideration

14/07/2010

M.Lenti 5

Leaf spring Support

14/07/2010

M.Lenti 6

Aluminum clamper

14/07/2010

M.Lenti 7

Aluminium Dowel

14/07/2010

M.Lenti 8

Aluminium Leaf

14/07/2010

Thickness: 0.5 mmHeight: 200 mm

M.Lenti 9

Aluminium Support

14/07/2010

M.Lenti 10

Dowel Aluminium Plate

14/07/2010

M.Lenti 11

Piet’s correction

June 17

14/07/2010

M.Lenti 12

New drawing

14/07/2010

F.Maletta

Can be mounted inwith the “original”or “inverted” approach

M.Lenti 13

Prototype situation

• Aluminium raw material arrived last week (!!!)• Executive drawings ready• Mechanical worshop in Florence ready for

working• Hope to have the pieces machined by next

week

14/07/2010

M.Lenti 14

Resonances

• Estimated by Vito• Glass: very low, just above 0 Hz• Support structure: 1° resonance around 7.5 Hz

14/07/2010

M.Lenti 15

Conclusions

• A lot of time lost for material procurement• Hope to have some results late in july…

14/07/2010