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Modification to the Nosepiece Assembly of an 11" RASA, PJ Mahany

Modification to the Nosepiece Assembly of an 11" RASA

Modification to the Nosepiece Assembly of an 11" RASA, PJ Mahany

Modification to the Nosepiece Assembly of an 11" RASA

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Description

This is a modification that I invented to deal with the weakness of the nosepiece assembly of the RASA

A Precis:

Issues with stock assembly when attempting to tighten the coupling ring

One problem, easy to cause the Rowe lens assembly rotate in the Schmidt corrector. Not good.

# 2. The entire Schmidt corrector can rotate thus screwing up the fundamental optical alignment. Ugh, Not Good.

# 3. The Lock Collar can because of aluminum to aluminum threading gall and become frozen. Really not Good.

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Modification to the Nosepiece Assembly of an 11" RASA, PJ Mahany

In these public groups

Celestron RASA
SF Bay Area Imagers