Geodesic 3V pixel controlled dome
3V Geodesic Dome, each pixel RGBW controllable
Over Christmas 2019 we embarked on a project to construct a large (2m diameter) 3v geodesic dome with computer controlled pixel lighting. It turned into quite a project with well over 50 hours work.
You can see images of construction, installation and various other details over in our Album.
https://www.facebook.com/tcraevents/photos/…
Here are some more details on how we created this monster.
The dome is a 3V geodesic structure constructed from 12mm wood dowels. See details on how it was constructued at: http://www.acidome.ru/lab/calc/…
First the wood was cut to lengths and labelled into the 3 types of construction section. The joints are made from 3" sections of 12mm internal diameter plastic tubing.
The dowels and joints were then assembled together and stapled. The dome holds itTs own shape nicely once together and the total weight is just short of 3kg.
The lighting is a strip of NeoPixels which provide individual control of the 92 pixels. Each is RGBW controllable which also means that the whites are nice and bright. These are connected to an Arduino Mega and there is a DMX board to allow control from a DMX lighting system.
The code is designed to allow a single DMX channel to trigger any number of the programmed effects by sending a single DMX value to the fixture, but it could also have options for sending individual colour values, delays or other information depending on how many channels allocated.
You can see some of the effects in our video playlist. https://www.facebook.com/…/vl.62482033159…/2411022712521555/
DMX controllable RGB cross fixture
Another customer commission project was a DMX controlled cross. The cross is around 5 feet high and constructed from a wooden base to which is attached 2 runs of RGB controllable strip. A DMX control unit on the rear provides DMX control and allows for each of two sections of the cross to be independently controlled. The cross is provided with rigging points and safety bonds to allow it to be flown on a variety of different settings as shown in the picture here. (note: only the outer section lit up in this image)
