Author Topic: 6", 8", 10" or 12" Dob - what should a Noob Build ?  (Read 27 times)

Paul Melo

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6", 8", 10" or 12" Dob - what should a Noob Build ?
« on: December 24, 2017, 08:34:10 PM »
Hello,

I am contemplating building my first ever telescope.  I enjoy the appearance of the Reiner Vogel Travel Dobs (http://www.reinervog...et/index_e.html) and right now aim to construct 1 something like that (although the Roel Weijenberg Propdob Nano http://www.roelblog....m-reistelescoop/ is highly attractive, but likely too rough for me as a first project.  BesidesI am not seeking to create the lightest possible scope, only one that I can pack away compactly and put in the vehicle.  (Road trip)

I have a wood working experience, a workshop, 20 years of System engineering plus a couple of years using my dividers (6",10" SCT, 12" Dob).

I believe I would love to construct a 10" F5 dob predicated on price, height at zenith and Light gathering capability (I intend to buy a GSO or alternative Mirror Place, not grind my own).

My question is Is there any reason NOT to start by constructing a 10" Dob rather than learn about a 6" or whatever?  I know the mirror set for a 10" is much greater than the 6" so if I never complete the project (it's happened...) or I screw it up (that's happened too...) then my $ sunk in the mirrors are greater, but apart from that I can not see a 10" could be harder than a 6".  But I may well have missed something.   Also if I built a 6" to learn on, I believe I would immediately proceed to construct a 10" anyhow because that is the size I wish to end on, so why not start there?

I'd appreciate any thoughts & suggestions from those that have already been down this particular road.

Thanks,

Colin