File talk:Dobsonian tube sections.jpg

" A COLAPSABLE TUBE DESIGN AND BASE BEING FITTED TOGETHER "

The picture is part of a series of pictures showing how the telescope can be set up by one person. The jack (spacer) has been placed on the floor of the support,and the bottom section of the telescope has been placed on top of the jack, the middle section has been lifted on top of the support and is held by the altitude bearings. The middle sections slip jonint is fitted part way in the bottom section's slip joint leaving a 3/8 in gap. The toggle clamps then lift the bottom section and closes the gap between the slip joints. The gap moves to between the bottom of the bottom section and the jack. The jack (spacer)is removed creating space between the bottom of the telescope and the suport floor so the telescope can be tilted. (````)