Wolfgang Bieck (Germany)@


HOVER-rig 01

I created the name HOVER-rig to document a double-function. The SLR-camera turns not only from horizontal to vertical direction, but also the film-format from landscape to portrait. The multiple exposure-technic helped me to document the landscape-portrait-movement in one photo. The use of three model-servos enables me to turn the SLR-camera - similar to a cardan-system - in all photographic perspectives, I would choose, if I would be in the sky in person.


HOVER-rig 02

To fix electronic and mechanical elements, I used a light Aluminium-frame (30 mm x 3 mm) in a length, depending on individual conditions (size of the camera etc.). Whenever possible, I used 2 mm, 2.5 mm, 3 mm or 4 mm countersu nk screws to optimize the aerodynamics. On the outer Al-frame are fixed two model-servos for horizontal and vertical rotation with direct drive. On the inner AL-frame are fixed the following components: model-receiver; model-servo (landscape/portrait-movement) with well-sized gears, AL-block with two ball-bearings and 6 mm steel-axis for the camera-holder; battery-pack (4x Mignon 1100 mAh) and model-case with electronic relais-switch.


HOVER-rig 03

Back view with vertical camera position The camera-holder is sewed with a fret-saw out of one Al-window-frame to get an Al-angle with highest stability. The camera-srew and ocular-cap are fixed by a 1 mm line each. The Al-frame, the camera-holder, the tripod-legs and the SUMIPI are grounded grey and lacquered red to make them look fine. All electric cables are glued with rapid-adhesive to reduce wind-effects and to make it look good too. For needs of repair all changes (servo/frame; frame/frame; antenna/receiver; release-cable/electronic relais; video-camer a (not added here)/frame) are equiped with compatible plugs.


HOVER-rig 04

Front view with vertical camera position All non-glued, plug-connecting cables are twistet to prevent breakage. The antenna is twistet into a single leg of the trip od. The legs are simple fiberglass tubes (8 mm), fixed on an AL-stick with small steel-bolts (umbrella). Their special function is shock-absorbing nearby the ground. The HOVER-rig's rotation is done by the upper model-servo. Inside this servo I installed a 4 mm steel-srew as axis. The HOVER-rig is fixed on the SUMIPI with a wing nut and guarded against loss with a steel-bolt (1.5 mm).




SUMIPI


SUMIPI I named my Super-Mini-PICAVET-suspension. Nearly six years I needed to discover, that's possible to reduce the original size of a PICAVET-suspension (70 cm x 70 cm) to a size, you can carry in your shirt-pocket (9 cm x 9 cm). When I used a small washer, where the lines were crossing each other, the HOVER-rig's lateral swing was reduced effectual. The model-blocks, made out of stainless steel, ball-bearings and carbon, have a stress-capacity of almost 60 kg each! They are fixed on the PICAVET-cross with 2.3 mm eye-srews.




PRUSIK-loop

Dr. Karl PRUSIK gave the knot's name. He developed this clamp-knot as a life-saving-knot for alpinists. Whenever you try out this ingenious, simple knot, you'll be faszinated by its effects. I use it, because there is 0 % reduction of the kite-line's breaking-strength. It may take 1 or 2 minutes to fix the SUMIPI. To make the PRUSIK-knot work well, you have to choose the line-diameter 1/3 of the kite-line's diameter.




PICAVET-suspension's fixing on the kite-line

I like to use two PRUSIK-loops to fix my HOVER-rig on the kite-line. The stainless carabiner with stainless blocks are part of a PICAVET-suspension, I used before I found SUMIPI.



Wolfgang Bieck (Germany)


E-Mail: wbieck@t-online.de


inserted by FC2 system