Leaf Spring prototype
preparation
M.Lenti
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
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Piet’s proposal
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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
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Leaf spring Support
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Aluminum clamper
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Aluminium Dowel
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Aluminium Leaf
Thickness: 0.5 mm
Height: 200 mm
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Aluminium Support
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Dowel Aluminium Plate
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Piet’s correction
June 17
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New drawing
F.Maletta
Can be mounted in
with the “original”
or “inverted” approach
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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
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Resonances
• Estimated by Vito
• Glass: very low, just above 0 Hz
• Support structure: 1° resonance around 7.5 Hz
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Conclusions
• A lot of time lost for material procurement
• Hope to have some results late in july…
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