I've got a SW 8" dob, and the secondary bolts are 4mm, primaries are 5mm. Also fitted a Moonlite a few months back, and I agree, it's a vast improvement on the standard SW focusser.
What's all the talk about Adam's knobs ?? Is this a home brew mod ? I have my own machine shop. Or is it something one buys from somewhere ?? I'm trying to collimate mt SkyWatcher 10 Dob but I don't know if I'm supposed to loosen the center Phillips screws or what size allen the 3 adjustment screws are. Can anyone advise ? Thanks.
Definitely home brew! But worked a treat - so much easier to adjust the secondary once these were done. Sorry - I don't know offhand the adjustment screw sizes.
