My handmade 16" Truss
Posted 22 January 2013 - 07:09 AM
I have recently started the construction of a truss dob at 16". This is my second scope project. The initial guidelines were retrieved from the Krieges book, but there are a lot of modifications since I wanted a more compact and transportable design. Since I leave in Greece there are no much choices about the optics, appart from 1-2 (expensive) companies. The most value/money option was a 16" F/4.5 GSO mirror with Hilux coatings. The secondary is a 90mm Orion Optics with hilux as well. So far the constructed parts are the mirror cell, spider and uta.
Hope you enjoy it.
Posted 22 January 2013 - 07:15 AM
The triangles and bars
Testing with the mockup mirror
Posted 22 January 2013 - 08:07 AM
Posted 22 January 2013 - 10:12 AM
The thickness of the mirror is 45,3mm (1.8"). The mirror cell frame is steel and the triangles and bars are alouminum.
Posted 22 January 2013 - 10:28 AM
I love the details on the spider; well done!
Posted 22 January 2013 - 11:56 AM
Posted 23 January 2013 - 06:24 AM
Regarding the locking compound, no I'm not using something. I have just tighten the bolts with the nuts. But its a good idea to put fingernail polish to secure the nuts
Follows the UTA photos. The UTA ID is 17" and the width of the ring is 2"
Posted 23 January 2013 - 07:22 AM
Posted 23 January 2013 - 11:43 AM
Posted 23 January 2013 - 05:47 PM
Posted 23 January 2013 - 06:21 PM
Posted 23 January 2013 - 06:30 PM
Posted 23 January 2013 - 06:56 PM
Posted 24 January 2013 - 05:43 AM
I found this approach very precise at my first scope I built and my scope was the lightest possible without heavy counter weights at the back of the mirror or tall mirror box. Only some light weights in the front in order to counter balance the altitude bearings weight.
Posted 21 March 2013 - 11:22 AM
I have finished the scope but I didn't have the time to upload the photos. So Im sending you the remaining photos!!
Posted 21 March 2013 - 01:48 PM
Posted 21 March 2013 - 04:55 PM
You've got something to be proud of.
Posted 22 March 2013 - 05:16 AM
Thanks again for watching.