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methrotrexate

miroir

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bonjour a tous,j'ai recupéré un vieux disque sovis de 410mm origine mosser,il a une fléche trop grande au centre,quelle méthode doit je utiliser pour passer de 5 mm a 4mm ?merci d'avance(le miroir est a l'état d'ébauche)

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Planetary Astronomy
Observing, imaging and studying the planets
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Mes souvenirs me feraient dire, travailler outil dessus avec des courses larges mais c'est très loin pour moi! ...

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Salut,

j'essayerais des courses en I d'amplitude comprise entre D/3 et D/2. Miroir dessous bien entendu.

[Ce message a été modifié par bruno thien (Édité le 28-03-2012).]

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