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Victorinox Luggage Werks Traveler 4.0 Ultra-Light Carry-On Bag |
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Delsey Luggage Helium Shadow Lightweight 2 Wheel Carry On Hardside |
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Rockland Luggage Melbourne 20 Inch Expandable Abs Carry On Luggage |
Lightweight Luggage Carry On
For this project, the aim was to achieve a 300 optimized for transport and travel, F / D 5 lightweight, 10 kg maximum, including mirrors, transportable by plane in hand luggage, or backpack a trekking, the more ergonomic as possible and relatively easy to achieve. It is designed to accept a mirror of the trade, including the optics of Kepler, Orion and other Chinese. This is a great way to easily transform a "blunderbuss" heavy and difficult to transport in a lightweight, ergonomic instrument. It is of course adaptable to a shorter focal length mirror. * A central body 45 °, simplified and easy to carry, with three collimation screws and a central screw which rotates the mirror. The screws are nylon, much lighter than steel, and used according to the principle that when they wear out, they change . . * The secondary mirror is situated high between the legs of the spider, which reduces the thickness of the entire secondary cage, and limit the overhang to the focuser and is secured closer to the secondary ring. The focuser 31. 75 homemade, is lightweight luggage carry on (80g), on the basis of helical Crayford (The tube of the focuser slides on bearings mounted on angled stems, which is a thread virtual . The pitch of 5mm for a ride allows a very precise focus. Also note the clips for the tubes connected by hinged fastening systems made to measure in duran. The six tubes fold together for removal. The collimation screws are below the barrel to simplify construction, but it will be possible with a simple system of pulleys and belts, to have a collimation from the top. Nuts for collimation screws are inserted and fixed in frame tubes of the barrel, to gain height. The flex-rocker is a very simple ring end of 6 mm thick, 42 ??cm in diameter, which rotates on the base, held by three bearings on the edge, with the inside. The base diameter 42 cm and journals (and diameter) are made of two layers of CPT beech 6 mm, inserting a thick walnut. Honeycomb structure very light and very rigid. System against spring-weight will balance the diameter and position of the pins (42 cm maximum) does not allow to balance the tube. We can of course also put a weight less against Virtual trip, cans of beer can be very practical, are found everywhere . . The result is a set which, once removed, is a flattened cylinder of 42 cm in diameter and 12 cm high, what I call "THE HAT BOX. " The components come apart and fit together in the other, the mirror being housed inside the annular base which serves as protection and mirror box for transport. This unit is easily transportable in a backpack suitable form. Its dimensions and weight allow it to take worry-free as hand lightweight luggage carry on by plane or a stroll in the mountains. . . .
