Bob's Knobs for skywatcher & starsense Explorer newtonian primary mirror collimation PA0A-BK-SWpri
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For sale is an excellent condition set of Bob's Knobs for skywatcher & starsense Explorer newtonian primary mirror collimation knobs. PA0A-BK-SWpri. I used the primary locking screws on my skywatcher quattro 6" f4 imaging newtonian, but they weren't long enough to compensate for me having to extend my primary farther up the ota when i upgraded my focuser. The collimation knobs were never installed. Asking $25 shipped in lower 48 and paypal fees on me. Feel free to reach out with questions.
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