The U `King Moving Head RGBW fixtures, Standard Fixture ID 029, are available from Amazon (ASIN B071KP6M8Q) for less than USD $100.
Figure 1 – U `King Moving Head RGBW
The fixtures have 11 channel and 13 channel options, which you can select from the fixture’s DMX panel. Effects in Finale 3D are compatible only with the 11 channel mode.
Table 1 – DMX personality choices
| DMX personality (“DMX Channel Mode”) | Supported in Finale 3D |
| 11CH | YES |
| 13CH | NO |
Instructions
To design a show for U `King fixtures, please follow the steps in DMX basic instructions and Light fixtures basic instructions. If you don’t already have a compatible firing system or controller capable exporting a DMX script, please refer to Supported firing systems and controllers (DMX) for the list of available hardware options.
Choosing the DMX channel ranges for fixtures
Each fixture requires multiple channels, so if you are putting multiple fixtures in the same DMX Universe, you need to set the Start Address on the fixture in the real world and the corresponding DMX Channel Base on the fixture in Finale 3D to a range of channels that doesn’t overlap with others. A DMX universe has channels 1-512. If you want to pack as many fixtures into the 512 channels of a DMX universe as you can, back-to-back ranges are the most efficient. Table 2 shows an example for 11-channel fixtures. Some DMX firing systems and controllers only support 50 or 100 channels, so you may not have all 512 channels to work with.
Table 2 – Example channel ranges for 11-channel fixtures in a DMX universe
| Fixture | DMX Channel Base | Channels Used |
| 1 | 1 | 1-11 |
| 2 | 12 | 12-22 |
| 3 | 23 | 23-33 |
| 4 | 34 | 34-44 |
| 5 | 45 | 45-55 |
| 6 | 56 | 56-66 |
| 7 | 67 | 67-77 |
| 8 | 78 | 78-88 |
| 9 | 89 | 89-99 |
| 10 | 100 | 100-110 |
| … | ||
| 46 | 496 | 496-506 |
Technical details
The following tables show the technical specifications of the fixtures, as tested by the Finale support team.
Table 3 – DMX channels for 11CH personality
| DMX Channel | Meaning |
| Channel 1 (DMX Channel Base + 0) | Pan (0 = forward; 170 = 360°; 255 = 540°) |
| Channel 2 (DMX Channel Base + 1) | Pan fine tuning |
| Channel 3 (DMX Channel Base + 2) | Tilt (0 = -25° below horizontal; 128 = 90°; 255 = 205°, which is 25° below horizontal on the backside) |
| Channel 4 (DMX Channel Base + 3) | Tilt fine tuning |
| Channel 5 (DMX Channel Base + 4) | Motor speed (0 = max; 255 = min) |
| Channel 6 (DMX Channel Base + 5) | Dimmer (0 = OFF; 255 = max) |
| Channel 7 (DMX Channel Base + 6) | Strobe (0 = no strobe, 1-255 = slow to fast; 230 = nicely slow, 240 = medium, 255 = fast) |
| Channel 8 (DMX Channel Base + 7) | Red |
| Channel 9 (DMX Channel Base + 8) | Green |
| Channel 10 (DMX Channel Base + 9) | Blue |
| Channel 11 (DMX Channel Base + 10) | White |
Moving head effects are implemented by setting the motor speed based on the “from” and “to” trajectory angles and the span of time between the “from” and “to” effects. The speed channel value is calculated from the inverse of the degrees-per-second-for-speed-channel-value function. Figure 2 shows the measured degrees per second of the fixture for various speed channel values between 0 and 255, and the curve chosen to fit those values. The curve is specified in the DMX patch for the fixture’s effects. While it is possible to specify curves that are closer to the sampled values, this curve, which doesn’t appear accurate, has been manually tuned to deliver optimal real world results based on experimentation.
Figure 2 – Motor speeds
Table 4 – Example files and downloads
| Download link | Explanation |
| uking-manual.pdf | U `King User Manual |