Click here if you are having trouble logging into the forums Cloudy Nights - Official Forums of the 2009 International Year of Astronomy Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User   You are not logged in. [Login] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Equipment Discussions >> ATM, Optics and DIY Forum Previous   Index   Next   Threaded   Pages: 1 Chriske Kijkerbouw Urania Reged: 08/15/04 Posts: 1963 Loc: Boechout, Belgium DIY Mount - Dobson 2       #2557391 - 08/03/08 10:02 AM Edit   Reply   Quote Quick Reply   This one is a bit more difficult to build compared to Dobson 1. Here again this one is build completely out of plywood. Bearings : combination of formica/teflon. Usage : 1- Small to very large telescopes. 2- Reflector (mostly Newtontelescopes). 3- Smaller Dobs transportable in a regular car. The scope itself can be made with real trusses. The one in the image is rather easy to build. 'Real truss scopes' are more difficult to build. Real trusses have usually 6 or 8 angeled poles connecting primary and secondary cage. Angeled poles provide more stiffness, compared to the stray poles shown in the images. For smaller scopes, like this one, stray poles will do nicely. This one has a very low COG, so it need a low rocker accordingly. Even larger scopes can be transported very easy. Large version Large version Large version Large version -------------------- Chris Post Extras:       Don W Postmaster Reged: 05/19/03 Posts: 13244 Loc: Wisconsin, USA Re: DIY Mount - Dobson 2 [Re: Chriske]       #2557451 - 08/03/08 11:06 AM Edit   Reply   Quote Quick Reply   How large of a mirror would you use in this style of mount? 8", 10", 12"? -------------------- Don Wyman Obsession 18" f/4.5 #1166 W/Argo Navis DSC and Torus Primary William Optics Megrez 90 Coronado PST Post Extras:       Moki super member Reged: 11/06/05 Posts: 349 Loc: Dallas, GA Re: DIY Mount - Dobson 2 [Re: Chriske]       #2557775 - 08/03/08 02:44 PM Attachment (41 downloads) Edit   Reply   Quote Quick Reply   Hmmm... That looks kinda familiar... My 12.5" F5.3: -------------------- "In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual." Galileo 12.5" F5.3 Dob on EQ platform 8" F7 planetary Dob / EQ Platform Current ATM projects: Xtal-Controlled EQ platform motor drive 8" F6 Dob for club Motorized focus for planetary 10" F6 Ultralight PushTo Post Extras:       Chriske Kijkerbouw Urania Reged: 08/15/04 Posts: 1963 Loc: Boechout, Belgium Re: DIY Mount - Dobson 2 [Re: Moki]       #2557974 - 08/03/08 04:55 PM Edit   Reply   Quote Quick Reply   Nice one... ! Thanks for posting.. -------------------- Chris Post Extras:       gatorengineer professor emeritus Reged: 02/28/05 Posts: 725 Loc: Hellertown, PA Re: DIY Mount - Dobson 2 [Re: Chriske]       #2558409 - 08/03/08 10:01 PM Edit   Reply   Quote Quick Reply   Plettstone would be flattered............... -------------------- 16" & 20" Dobs 4" Triplet Refractor 10" LX200R OTA 8"F20 Dall Kirkham 12.5" F3.5 Newt CGE Lots of binos--- Nikon 8x30, 10x35, Prostars,10W/18 x 70 astrolux; 10x50 Fujis. Collectors items 12x60 BLC, 10x80 Flaks, Gas Masks, US Mark 28, 30, 41, 43's Telescopes Past - 8" Stf Mak, C8, Meade LX10-10", SN8, TAL150K, Orion 150MC, Jason 60mm refractor, ATM 6" F8, WO 110FLT, 92mm Off Axis Newt, Nikon 20x120 bino's, 15x110 Boarderguards, Kuhne Flaks Post Extras:       Beri sage Reged: 06/29/05 Posts: 271 Loc: Croatia Re: DIY Mount - Dobson 2 [Re: Chriske]       #2559864 - 08/04/08 04:22 PM Edit   Reply   Quote Quick Reply   Thanks for the trouble of making these drawings, not this particular one alone, but all of them. I am sure many people will find them very usefull This particular design is my personal favourite, as the classic dob is practical for transport up to the 250 mm (10") F5 size...and the ultraminimal very open, very mirror exposed to elements and damage is not realy my kind of tea.. And no, I am not dead, neither in jail, I have recently settled in my new home so you will hopefully hear more from me in the near future -------------------- 15x70 Binoculars no scope right now http://www.scopemaking.net Post Extras:       Chriske Kijkerbouw Urania Reged: 08/15/04 Posts: 1963 Loc: Boechout, Belgium Re: DIY Mount - Dobson 2 [Re: Beri]       #2559959 - 08/04/08 05:17 PM Edit   Reply   Quote Quick Reply   Hi Beri, Glad your back.. -------------------- Chris Post Extras:       Bart sage Reged: 05/28/06 Posts: 241 Loc: Inside the (DC) Beltway Re: DIY Mount - Dobson 2 [Re: Chriske]       #2660278 - 09/24/08 10:10 AM Edit   Reply   Quote Quick Reply   Are there detailed plans avalanche for a scope like this or do I have to figure it all out myself? Thanks. -------------------- Mead 12" LightBridge Orion 127mm Mak Orion 80ED Orion Short Tube 80 Baader Hyperion 3.5,5,8,13,17,24mm Baader Hyperion Aspheric 31mm Orion Sirius 25mm Celestron Plossl 4,6,9,15,32mm Orion UltraView 10x50 Canon XTi My two eyes Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 9 registered and 6 anonymous users are browsing this forum. 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