I’ve finally been able to achiev focus on my 3" newtonian, thanks to @Tom.Graham!
My next question, how do I know if my telescope needs to be collimated and how do I collimate it?
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If a star near the center of the Field of View (FOV) appears to be “coned”, then the telescope needs to be collimated.
Take a look at this article: https://skyandtelescope.org/astronomy-resources/how-to-align-your-newtonian-reflector-telescope/
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If you can make it out to our First Friday Public Viewing Night I will bring my Collimator.
https://nightsky.jpl.nasa.gov/event-view.cfm?Event_ID=133995