I have not had to collimate it since I completed the telescope in April 2011. A Serrurier truss is used in telescope tube assembly construction. :) Clear skies and lots of successful observations with your new telescope! http://www.raddobs.com/atm/wire%20spider/wirespider.htm, Best Annabelle Dollhouse From Kidkraft for Little Ones. Adjustable Focal Point including three different nose assembly mounting positions for visual and photographic work. U r a genius. When flexin… The design was created in 1935 by engineer Mark U. Serrurier when he was working on the Mount Palomar 200 in (5.1 m) Hale telescope. Learner, Richard. The trusses are designed to have an equal amount of flexure, which allows the optics to stay on a common optical axis. The net result is all of the optical elements stay in collimation regardless of the orientation of the telescope. I have a 12.5 primary which I have installed in a 16 inch sonotube. These single truss designs are used for their rigidity and do perform the function of keeping the optical elements parallel, but since they lack the opposing truss that keeps optics on the same optical axis they are not technically "Serrurier trusses". 12.5" was the largest Newtonian I could fit in the observatory since I didn't want to go too low on focal ratio. Since truss members work primarily in tension and compression, there is no appreciable loss of stiffness due to the bending of the end flexures. The design solves the problem of truss flexing by supporting the primary objective mirror and the secondary mirror by two sets of opposing trusses before and after the declination pivot. Can you please comment on how do you like this wire spider after some time using it. The design was created in 1935 by engineer Mark U. Serrurier when he was working on the Mount Palomar 200 in (5.1 m) Hale telescope. What a great engineer you are! Collimation is very easy though, with the guitar tuners. BTW, what is your focal length? Also, I want to keep the weight at a minimum because my current setup is tracking beautifully. A Serrurier truss is used in telescope tube assembly construction. Any hints for a truss system? Certain designs used by amateur telescope makers, specifically truss tube Dobsonians that use a single truss, are sometimes called "Serrurier truss" designs. 26 mars 2016 - Cette épingle a été découverte par Roland Franclet. . hello rolf. The trusses are designed to have an equal amount of flexure, which allows the optics to stay on a common optical axis. "The Legacy of the 200-inch". Serrurier Truss Rods snap fit into heat treated, spring steel cavities. Hello from a wannabe. The wire spider is very solid. "Flexure of a Serrurier Truss", This page was last edited on 20 August 2020, at 19:49. Découvrez vos propres épingles sur Pinterest et enregistrez-les. Diffrient, Roy. Introducing the Octagon Fast Truss Newtonian Platform, made in the UK. The serrurier truss system, first designed by Mark Serrurier whilst working on the 200″ Hale telescope at Palomar mountain in 1935 has been used to stop flexure in telescopes. This has the effect of keeping the optical elements parallel to each other. Split-Ring Equatorial Drive with 26" drive ring. Some Serrurier truss designs end the truss members with a short flexible rod creating a more ideal "parallel motion flexure" system, to allow maximum parallelism of optical elements under gravitational load. This gallery details the construction of my first ATM project: An equatorially mounted 10" Serrurier truss Newtonian OTA. It is hard for me to tell from the Photo. When flexing, the "top" truss resists tension and the "bottom" truss resists compression. Octagon FTN250-4 250mm f4. Details Add to Cart. I want to use similar wire design myself.
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